MariaDbConnection

java.lang.Object
- org.mariadb.jdbc.MariaDbConnection

All Implemented Interfaces:

java.lang.AutoCloseable, java.sql.Connection, java.sql.Wrapper
```
public class MariaDbConnection
extends java.lang.Object
implements java.sql.Connection
```

Field Summary

Fields
Modifier and Type	Field and Description
`private static java.util.regex.Pattern`	`CALLABLE_STATEMENT_PATTERN` Pattern to check the correctness of callable statement query string Legal queries, as documented in JDK have the form: {[?=]call[(arg1,..,,argn)]}
`private CallableStatementCache`	`callableStatementCache`
`private boolean`	`canUseServerTimeout`
`private int`	`defaultTransactionIsolation`
`java.util.concurrent.locks.ReentrantLock`	`lock`
`private static Logger`	`logger`
`private int`	`lowercaseTableNames`
`protected boolean`	`nullCatalogMeansCurrent`
`private Options`	`options` the properties for the client.
`MariaDbPooledConnection`	`pooledConnection`
`private static java.util.regex.Pattern`	`PREPARABLE_STATEMENT_PATTERN` Check that query can be executed with PREPARE.
`private Protocol`	`protocol` the protocol to communicate with.
`private int`	`savepointCount` save point count - to generate good names for the savepoints.
`private boolean`	`sessionStateAware`
`private int`	`stateFlag`
`private boolean`	`warningsCleared`

Fields inherited from interface java.sql.Connection
TRANSACTION_NONE, TRANSACTION_READ_COMMITTED, TRANSACTION_READ_UNCOMMITTED, TRANSACTION_REPEATABLE_READ, TRANSACTION_SERIALIZABLE

Constructor Summary

Constructors
Constructor and Description

MariaDbConnection(Protocol protocol)
Creates a new connection with a given protocol and query factory.

Constructors
Constructor and Description
`MariaDbConnection(Protocol protocol)` Creates a new connection with a given protocol and query factory.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`void`	`abort(java.util.concurrent.Executor executor)` Abort connection.
`private java.lang.String`	`buildClientQuery(java.lang.String name, java.lang.String value)`
`boolean`	`canUseServerTimeout()`
`private void`	`checkClientClose(java.lang.String name)`
`private void`	`checkClientReconnect(java.lang.String name)`
`private void`	`checkClientValidProperty(java.lang.String name)`
`private void`	`checkConnection()`
`void`	`clearWarnings()` Clears all warnings reported for this `Connection` object.
`MariaDbPreparedStatementClient`	`clientPrepareStatement(java.lang.String sql)` Create a new client prepared statement.
`void`	`close()` close the connection.
`void`	`commit()` Sends commit to the server.
`java.sql.Array`	`createArrayOf(java.lang.String typeName, java.lang.Object[] elements)` Factory method for creating Array objects.
`java.sql.Blob`	`createBlob()` Constructs an object that implements the `Blob` interface.
`java.sql.Clob`	`createClob()` Constructs an object that implements the `Clob` interface.
`java.sql.NClob`	`createNClob()` Constructs an object that implements the `NClob` interface.
`private java.sql.CallableStatement`	`createNewCallableStatement(java.lang.String query, java.lang.String procedureName, boolean isFunction, java.lang.String databaseAndProcedure, java.lang.String database, java.lang.String arguments, int resultSetType, int resultSetConcurrency)`
`java.sql.SQLXML`	`createSQLXML()` Constructs an object that implements the `SQLXML` interface.
`java.sql.Statement`	`createStatement()` creates a new statement.
`java.sql.Statement`	`createStatement(int resultSetType, int resultSetConcurrency)` Creates a `Statement` object that will generate `ResultSet` objects with the given type and concurrency.
`java.sql.Statement`	`createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability)` Creates a `Statement` object that will generate `ResultSet` objects with the given type, concurrency, and holdability.
`java.sql.Struct`	`createStruct(java.lang.String typeName, java.lang.Object[] attributes)` Factory method for creating Struct objects.
`boolean`	`getAutoCommit()` returns true if statements on this connection are auto commited.
`java.lang.String`	`getCatalog()` Retrieves this `Connection` object's current catalog name.
`java.util.Properties`	`getClientInfo()` Returns a list containing the name and current value of each client info property supported by the driver.
`java.lang.String`	`getClientInfo(java.lang.String name)` Returns the value of the client info property specified by name.
`private java.lang.String`	`getDatabase()` returns the database.
`int`	`getHoldability()` Retrieves the current holdability of `ResultSet` objects created using this `Connection` object.
`java.lang.String`	`getHostname()` returns the hostname for the connection.
`int`	`getLowercaseTableNames()` Are table case sensitive or not .
`java.sql.DatabaseMetaData`	`getMetaData()` returns the meta data about the database.
`int`	`getNetworkTimeout()` Get network timeout.
`protected boolean`	`getPinGlobalTxToPhysicalConnection()`
`int`	`getPort()` returns the port for the connection.
`protected Protocol`	`getProtocol()`
`java.lang.String`	`getSchema()`
`long`	`getServerThreadId()`
`int`	`getTransactionIsolation()` Retrieves this `Connection` object's current transaction isolation level.
`java.util.Map<java.lang.String,java.lang.Class<?>>`	`getTypeMap()` Retrieves the `Map` object associated with this `Connection` object.
`java.lang.String`	`getUsername()` returns the username for the connection.
`java.sql.SQLWarning`	`getWarnings()` Retrieves the first warning reported by calls on this `Connection` object.
`private java.sql.PreparedStatement`	`internalPrepareStatement(java.lang.String sql, int resultSetScrollType, int resultSetConcurrency, int autoGeneratedKeys)` Send ServerPrepareStatement or ClientPrepareStatement depending on SQL query and options If server side and PREPARE can be delayed, a facade will be return, to have a fallback on client prepareStatement.
`boolean`	`isClosed()` checks if the connection is closed.
`boolean`	`isReadOnly()` Retrieves whether this `Connection` object is in read-only mode.
`boolean`	`isServerMariaDb()`
`boolean`	`isValid(int timeout)` Returns true if the connection has not been closed and is still valid.
`boolean`	`isWrapperFor(java.lang.Class<?> iface)` Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an object that does.
`java.lang.String`	`nativeSQL(java.lang.String sql)`
`static MariaDbConnection`	`newConnection(UrlParser urlParser, GlobalStateInfo globalInfo)` Create new connection Object.
`java.sql.CallableStatement`	`prepareCall(java.lang.String sql)` Creates a `CallableStatement` object for calling database stored procedures.
`java.sql.CallableStatement`	`prepareCall(java.lang.String sql, int resultSetType, int resultSetConcurrency)` Creates a `CallableStatement` object that will generate `ResultSet` objects with the given type and concurrency.
`java.sql.CallableStatement`	`prepareCall(java.lang.String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability)` Creates a `CallableStatement` object that will generate `ResultSet` objects with the given type and concurrency.
`java.sql.PreparedStatement`	`prepareStatement(java.lang.String sql)` creates a new prepared statement.
`java.sql.PreparedStatement`	`prepareStatement(java.lang.String sql, int autoGeneratedKeys)` Creates a default `PreparedStatement` object that has the capability to retrieve auto-generated keys.
`java.sql.PreparedStatement`	`prepareStatement(java.lang.String sql, int[] columnIndexes)` Creates a default `PreparedStatement` object capable of returning the auto-generated keys designated by the given array.
`java.sql.PreparedStatement`	`prepareStatement(java.lang.String sql, int resultSetType, int resultSetConcurrency)` Creates a `PreparedStatement` object that will generate `ResultSet` objects with the given type and concurrency.
`java.sql.PreparedStatement`	`prepareStatement(java.lang.String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability)` Creates a `PreparedStatement` object that will generate `ResultSet` objects with the given type, concurrency, and holdability.
`java.sql.PreparedStatement`	`prepareStatement(java.lang.String sql, java.lang.String[] columnNames)` Creates a default `PreparedStatement` object capable of returning the auto-generated keys designated by the given array.
`static java.lang.String`	`quoteIdentifier(java.lang.String string)`
`void`	`reenableWarnings()` Reenable warnings, when next statement is executed.
`void`	`releaseSavepoint(java.sql.Savepoint savepoint)` Removes the specified `Savepoint` and subsequent `Savepoint` objects from the current transaction.
`void`	`reset()` Reset connection set has it was after creating a "fresh" new connection.
`void`	`rollback()` Rolls back a transaction.
`void`	`rollback(java.sql.Savepoint savepoint)` Undoes all changes made after the given `Savepoint` object was set.
`MariaDbPreparedStatementServer`	`serverPrepareStatement(java.lang.String sql)` Create a new server prepared statement.
`void`	`setAutoCommit(boolean autoCommit)` Sets whether this connection is auto commited.
`void`	`setCatalog(java.lang.String catalog)` Sets the given catalog name in order to select a subspace of this `Connection` object's database in which to work.
`void`	`setClientInfo(java.util.Properties properties)` Sets the value of the connection's client info properties.
`void`	`setClientInfo(java.lang.String name, java.lang.String value)` Sets the value of the client info property specified by name to the value specified by value.
`void`	`setDefaultTransactionIsolation(int defaultTransactionIsolation)`
`void`	`setHoldability(int holdability)` Changes the default holdability of `ResultSet` objects created using this `Connection` object to the given holdability.
`void`	`setHostFailed()` If failover is not activated, will close connection when a connection error occur.
`void`	`setNetworkTimeout(java.util.concurrent.Executor executor, int milliseconds)` Change network timeout
`void`	`setReadOnly(boolean readOnly)` Sets whether this connection is read only.
`java.sql.Savepoint`	`setSavepoint()` Creates an unnamed savepoint in the current transaction and returns the new `Savepoint` object that represents it.
`java.sql.Savepoint`	`setSavepoint(java.lang.String name)` Creates a savepoint with the given name in the current transaction and returns the new `Savepoint` object that represents it.
`void`	`setSchema(java.lang.String arg0)`
`void`	`setTransactionIsolation(int level)` Attempts to change the transaction isolation level for this `Connection` object to the one given.
`void`	`setTypeMap(java.util.Map<java.lang.String,java.lang.Class<?>> map)` Installs the given `TypeMap` object as the type map for this `Connection` object.
`static java.lang.String`	`unquoteIdentifier(java.lang.String string)` Deprecated. since 1.3.0
`<T> T`	`unwrap(java.lang.Class<T> iface)` Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy.
`boolean`	`versionGreaterOrEqual(int major, int minor, int patch)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - logger
```
private static final Logger logger
```
  - CALLABLE_STATEMENT_PATTERN
```
private static final java.util.regex.Pattern CALLABLE_STATEMENT_PATTERN
```
    Pattern to check the correctness of callable statement query string Legal queries, as documented in JDK have the form: {[?=]call[(arg1,..,,argn)]}
  - PREPARABLE_STATEMENT_PATTERN
```
private static final java.util.regex.Pattern PREPARABLE_STATEMENT_PATTERN
```
    Check that query can be executed with PREPARE.
  - lock
```
public final java.util.concurrent.locks.ReentrantLock lock
```
  - protocol
```
private final Protocol protocol
```
    the protocol to communicate with.
  - pooledConnection
```
public MariaDbPooledConnection pooledConnection
```
  - callableStatementCache
```
private CallableStatementCache callableStatementCache
```
  - nullCatalogMeansCurrent
```
protected boolean nullCatalogMeansCurrent
```
  - lowercaseTableNames
```
private volatile int lowercaseTableNames
```
  - canUseServerTimeout
```
private boolean canUseServerTimeout
```
  - sessionStateAware
```
private boolean sessionStateAware
```
  - stateFlag
```
private int stateFlag
```
  - defaultTransactionIsolation
```
private int defaultTransactionIsolation
```
  - savepointCount
```
private int savepointCount
```
    save point count - to generate good names for the savepoints.
  - options
```
private final Options options
```
    the properties for the client.
  - warningsCleared
```
private boolean warningsCleared
```
- Constructor Detail
  - MariaDbConnection
```
public MariaDbConnection(Protocol protocol)
```
    Creates a new connection with a given protocol and query factory.
    
    Parameters:
    
    protocol - the protocol to use.
- Method Detail
  - newConnection
```
public static MariaDbConnection newConnection(UrlParser urlParser,
                                              GlobalStateInfo globalInfo)
                                       throws java.sql.SQLException
```
    Create new connection Object.
    
    Parameters:
    
    urlParser - parser
    
    globalInfo - global info
    
    Returns:
    
    connection object
    
    Throws:
    
    java.sql.SQLException - if any connection error occur
  - quoteIdentifier
```
public static java.lang.String quoteIdentifier(java.lang.String string)
```
  - unquoteIdentifier
```
@Deprecated
public static java.lang.String unquoteIdentifier(java.lang.String string)
```
    Deprecated. since 1.3.0
    
    UnQuote string.
    
    Parameters:
    
    string - value
    
    Returns:
    
    unquote string
  - getProtocol
```
protected Protocol getProtocol()
```
  - createStatement
```
public java.sql.Statement createStatement()
                                   throws java.sql.SQLException
```
    creates a new statement.
    
    Specified by:
    
    createStatement in interface java.sql.Connection
    
    Returns:
    
    a statement
    
    Throws:
    
    java.sql.SQLException - if we cannot create the statement.
  - createStatement
```
public java.sql.Statement createStatement(int resultSetType,
                                          int resultSetConcurrency)
                                   throws java.sql.SQLException
```
    Creates a Statement object that will generate ResultSet objects with the given type and concurrency. This method is the same as the createStatement method above, but it allows the default result set type and concurrency to be overridden. The holdability of the created result sets can be determined by calling getHoldability().
    
    Specified by:
    
    createStatement in interface java.sql.Connection
    
    Parameters:
    
    resultSetType - a result set type; one of ResultSet.TYPE_FORWARD_ONLY, ResultSet.TYPE_SCROLL_INSENSITIVE, or ResultSet.TYPE_SCROLL_SENSITIVE
    
    resultSetConcurrency - a concurrency type; one of ResultSet.CONCUR_READ_ONLY or ResultSet.CONCUR_UPDATABLE
    
    Returns:
    
    a new Statement object that will generate ResultSet objects with the given type and concurrency
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs, this method is called on a closed connection or the given parameters are not ResultSet constants indicating type and concurrency
  - createStatement
```
public java.sql.Statement createStatement(int resultSetType,
                                          int resultSetConcurrency,
                                          int resultSetHoldability)
                                   throws java.sql.SQLException
```
    Creates a Statement object that will generate ResultSet objects with the given type, concurrency, and holdability. This method is the same as the createStatement method above, but it allows the default result set type, concurrency, and holdability to be overridden.
    
    Specified by:
    
    createStatement in interface java.sql.Connection
    
    Parameters:
    
    resultSetType - one of the following ResultSet constants: ResultSet.TYPE_FORWARD_ONLY, ResultSet.TYPE_SCROLL_INSENSITIVE, or ResultSet.TYPE_SCROLL_SENSITIVE
    
    resultSetConcurrency - one of the following ResultSet constants: ResultSet.CONCUR_READ_ONLY or ResultSet.CONCUR_UPDATABLE
    
    resultSetHoldability - one of the following ResultSet constants: ResultSet.HOLD_CURSORS_OVER_COMMIT or ResultSet.CLOSE_CURSORS_AT_COMMIT
    
    Returns:
    
    a new Statement object that will generate ResultSet objects with the given type, concurrency, and holdability
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs, this method is called on a closed connection or the given parameters are not ResultSet constants indicating type, concurrency, and holdability
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this method or this method is not supported for the specified result set type, result set holdability and result set concurrency.
    
    Since:
    
    1.4
    
    See Also:
    
    ResultSet
  - checkConnection
```
private void checkConnection()
                      throws java.sql.SQLException
```
    Throws:
    
    java.sql.SQLException
  - clientPrepareStatement
```
public MariaDbPreparedStatementClient clientPrepareStatement(java.lang.String sql)
                                                      throws java.sql.SQLException
```
    Create a new client prepared statement.
    
    Parameters:
    
    sql - the query.
    
    Returns:
    
    a client prepared statement.
    
    Throws:
    
    java.sql.SQLException - if there is a problem preparing the statement.
  - serverPrepareStatement
```
public MariaDbPreparedStatementServer serverPrepareStatement(java.lang.String sql)
                                                      throws java.sql.SQLException
```
    Create a new server prepared statement.
    
    Parameters:
    
    sql - the query.
    
    Returns:
    
    a server prepared statement.
    
    Throws:
    
    java.sql.SQLException - if there is a problem preparing the statement.
  - prepareStatement
```
public java.sql.PreparedStatement prepareStatement(java.lang.String sql)
                                            throws java.sql.SQLException
```
    creates a new prepared statement.
    
    Specified by:
    
    prepareStatement in interface java.sql.Connection
    
    Parameters:
    
    sql - the query.
    
    Returns:
    
    a prepared statement.
    
    Throws:
    
    java.sql.SQLException - if there is a problem preparing the statement.
  - prepareStatement
```
public java.sql.PreparedStatement prepareStatement(java.lang.String sql,
                                                   int resultSetType,
                                                   int resultSetConcurrency)
                                            throws java.sql.SQLException
```
    Creates a PreparedStatement object that will generate ResultSet objects with the given type and concurrency. This method is the same as the prepareStatement method above, but it allows the default result set type and concurrency to be overridden. The holdability of the created result sets can be determined by calling getHoldability().
    
    Specified by:
    
    prepareStatement in interface java.sql.Connection
    
    Parameters:
    
    sql - a String object that is the SQL statement to be sent to the database; may contain one or more '?' IN parameters
    
    resultSetType - a result set type; one of ResultSet.TYPE_FORWARD_ONLY, ResultSet.TYPE_SCROLL_INSENSITIVE, or ResultSet.TYPE_SCROLL_SENSITIVE
    
    resultSetConcurrency - a concurrency type; one of ResultSet.CONCUR_READ_ONLY or ResultSet.CONCUR_UPDATABLE
    
    Returns:
    
    a new PreparedStatement object containing the pre-compiled SQL statement that will produce ResultSet objects with the given type and concurrency
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs, this method is called on a closed connection or the given parameters are notResultSet constants indicating type and concurrency
  - prepareStatement
```
public java.sql.PreparedStatement prepareStatement(java.lang.String sql,
                                                   int resultSetType,
                                                   int resultSetConcurrency,
                                                   int resultSetHoldability)
                                            throws java.sql.SQLException
```
    Creates a PreparedStatement object that will generate ResultSet objects with the given type, concurrency, and holdability.
    
    This method is the same as the prepareStatement method above, but it allows the default result set type, concurrency, and holdability to be overridden.
    
    Specified by:
    
    prepareStatement in interface java.sql.Connection
    
    Parameters:
    
    sql - a String object that is the SQL statement to be sent to the database; may contain one or more '?' IN parameters
    
    resultSetType - one of the following ResultSet constants: ResultSet.TYPE_FORWARD_ONLY, ResultSet.TYPE_SCROLL_INSENSITIVE, or ResultSet.TYPE_SCROLL_SENSITIVE
    
    resultSetConcurrency - one of the following ResultSet constants: ResultSet.CONCUR_READ_ONLY or ResultSet.CONCUR_UPDATABLE
    
    resultSetHoldability - one of the following ResultSet constants: ResultSet.HOLD_CURSORS_OVER_COMMIT or ResultSet.CLOSE_CURSORS_AT_COMMIT
    
    Returns:
    
    a new PreparedStatement object, containing the pre-compiled SQL statement, that will generate ResultSet objects with the given type, concurrency, and holdability
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs, this method is called on a closed connection or the given parameters are not ResultSet constants indicating type, concurrency, and holdability
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this method or this method is not supported for the specified result set type, result set holdability and result set concurrency.
    
    Since:
    
    1.4
    
    See Also:
    
    ResultSet
  - prepareStatement
```
public java.sql.PreparedStatement prepareStatement(java.lang.String sql,
                                                   int autoGeneratedKeys)
                                            throws java.sql.SQLException
```
    Creates a default PreparedStatement object that has the capability to retrieve auto-generated keys. The given constant tells the driver whether it should make auto-generated keys available for retrieval. This parameter is ignored if the SQL statement is not an INSERT statement, or an SQL statement able to return auto-generated keys (the list of such statements is vendor-specific).
    
    Note: This method is optimized for handling parametric SQL statements that benefit from precompilation. If the driver supports precompilation, the method prepareStatement will send the statement to the database for precompilation. Some drivers may not support precompilation. In this case, the statement may not be sent to the database until the PreparedStatement object is executed. This has no direct effect on users; however, it does affect which methods throw certain SQLExceptions.
    
    Result sets created using the returned PreparedStatement object will by default be type TYPE_FORWARD_ONLY and have a concurrency level of CONCUR_READ_ONLY. The holdability of the created result sets can be determined by calling getHoldability().
    
    Specified by:
    
    prepareStatement in interface java.sql.Connection
    
    Parameters:
    
    sql - an SQL statement that may contain one or more '?' IN parameter placeholders
    
    autoGeneratedKeys - a flag indicating whether auto-generated keys should be returned; one of Statement.RETURN_GENERATED_KEYS or Statement.NO_GENERATED_KEYS
    
    Returns:
    
    a new PreparedStatement object, containing the pre-compiled SQL statement, that will have the capability of returning auto-generated keys
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs, this method is called on a closed connection or the given parameter is not a Statement constant indicating whether auto-generated keys should be returned
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this method with a constant of Statement.RETURN_GENERATED_KEYS
    
    Since:
    
    1.4
  - prepareStatement
```
public java.sql.PreparedStatement prepareStatement(java.lang.String sql,
                                                   int[] columnIndexes)
                                            throws java.sql.SQLException
```
    Creates a default PreparedStatement object capable of returning the auto-generated keys designated by the given array. This array contains the indexes of the columns in the target table that contain the auto-generated keys that should be made available. The driver will ignore the array if the SQL statement is not an INSERT statement, or an SQL statement able to return auto-generated keys (the list of such statements is vendor-specific).
    
    An SQL statement with or without IN parameters can be pre-compiled and stored in a PreparedStatement object. This object can then be used to efficiently execute this statement multiple times.
    
    Note: This method is optimized for handling parametric SQL statements that benefit from precompilation. If the driver supports precompilation, the method prepareStatement will send the statement to the database for precompilation. Some drivers may not support precompilation. In this case, the statement may not be sent to the database until the PreparedStatement object is executed. This has no direct effect on users; however, it does affect which methods throw certain SQLExceptions.
    
    Result sets created using the returned PreparedStatement object will by default be type TYPE_FORWARD_ONLY and have a concurrency level of CONCUR_READ_ONLY. The holdability of the created result sets can be determined by calling getHoldability().
    
    Specified by:
    
    prepareStatement in interface java.sql.Connection
    
    Parameters:
    
    sql - an SQL statement that may contain one or more '?' IN parameter placeholders
    
    columnIndexes - an array of column indexes indicating the columns that should be returned from the inserted row or rows
    
    Returns:
    
    a new PreparedStatement object, containing the pre-compiled statement, that is capable of returning the auto-generated keys designated by the given array of column indexes
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs or this method is called on a closed connection
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this method
    
    Since:
    
    1.4
  - prepareStatement
```
public java.sql.PreparedStatement prepareStatement(java.lang.String sql,
                                                   java.lang.String[] columnNames)
                                            throws java.sql.SQLException
```
    Creates a default PreparedStatement object capable of returning the auto-generated keys designated by the given array. This array contains the names of the columns in the target table that contain the auto-generated keys that should be returned. The driver will ignore the array if the SQL statement is not an INSERT statement, or an SQL statement able to return auto-generated keys (the list of such statements is vendor-specific).
    
    An SQL statement with or without IN parameters can be pre-compiled and stored in a PreparedStatement object. This object can then be used to efficiently execute this statement multiple times.
    
    Note: This method is optimized for handling parametric SQL statements that benefit from precompilation. If the driver supports precompilation, the method prepareStatement will send the statement to the database for precompilation. Some drivers may not support precompilation. In this case, the statement may not be sent to the database until the PreparedStatement object is executed. This has no direct effect on users; however, it does affect which methods throw certain SQLExceptions.
    
    Result sets created using the returned PreparedStatement object will by default be type TYPE_FORWARD_ONLY and have a concurrency level of CONCUR_READ_ONLY. The holdability of the created result sets can be determined by calling getHoldability().
    
    Specified by:
    
    prepareStatement in interface java.sql.Connection
    
    Parameters:
    
    sql - an SQL statement that may contain one or more '?' IN parameter placeholders
    
    columnNames - an array of column names indicating the columns that should be returned from the inserted row or rows
    
    Returns:
    
    a new PreparedStatement object, containing the pre-compiled statement, that is capable of returning the auto-generated keys designated by the given array of column names
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs or this method is called on a closed connection
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this method
    
    Since:
    
    1.4
  - internalPrepareStatement
```
private java.sql.PreparedStatement internalPrepareStatement(java.lang.String sql,
                                                            int resultSetScrollType,
                                                            int resultSetConcurrency,
                                                            int autoGeneratedKeys)
                                                     throws java.sql.SQLException
```
    Send ServerPrepareStatement or ClientPrepareStatement depending on SQL query and options If server side and PREPARE can be delayed, a facade will be return, to have a fallback on client prepareStatement.
    
    Parameters:
    
    sql - sql query
    
    resultSetScrollType - one of the following ResultSet constants: ResultSet.TYPE_FORWARD_ONLY, ResultSet.TYPE_SCROLL_INSENSITIVE, or ResultSet.TYPE_SCROLL_SENSITIVE
    
    resultSetConcurrency - a concurrency type; one of ResultSet.CONCUR_READ_ONLY or ResultSet.CONCUR_UPDATABLE
    
    autoGeneratedKeys - a flag indicating whether auto-generated keys should be returned; one of Statement.RETURN_GENERATED_KEYS or Statement.NO_GENERATED_KEYS
    
    Returns:
    
    PrepareStatement
    
    Throws:
    
    java.sql.SQLException - if a connection error occur during the server preparation.
  - prepareCall
```
public java.sql.CallableStatement prepareCall(java.lang.String sql)
                                       throws java.sql.SQLException
```
    Creates a CallableStatement object for calling database stored procedures. The CallableStatement object provides methods for setting up its IN and OUT parameters, and methods for executing the call to a stored procedure. example : {?= call <procedure-name>[(<arg1>,<arg2>, ...)]} or {call <procedure-name>[(<arg1>,<arg2>, ...)]}
    Note: This method is optimized for handling stored procedure call statements.
    
    Specified by:
    
    prepareCall in interface java.sql.Connection
    
    Parameters:
    
    sql - an SQL statement that may contain one or more '?' parameter placeholders. Typically this statement is specified using JDBC call escape syntax.
    
    Returns:
    
    a new default CallableStatement object containing the pre-compiled SQL statement
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs or this method is called on a closed connection
  - prepareCall
```
public java.sql.CallableStatement prepareCall(java.lang.String sql,
                                              int resultSetType,
                                              int resultSetConcurrency)
                                       throws java.sql.SQLException
```
    Creates a CallableStatement object that will generate ResultSet objects with the given type and concurrency. This method is the same as the prepareCall method above, but it allows the default result set type and concurrency to be overridden. The holdability of the created result sets can be determined by calling getHoldability().
    
    Specified by:
    
    prepareCall in interface java.sql.Connection
    
    Parameters:
    
    sql - a String object that is the SQL statement to be sent to the database; may contain on or more '?' parameters
    
    resultSetType - a result set type; one of ResultSet.TYPE_FORWARD_ONLY, ResultSet.TYPE_SCROLL_INSENSITIVE, or ResultSet.TYPE_SCROLL_SENSITIVE
    
    resultSetConcurrency - a concurrency type; one of ResultSet.CONCUR_READ_ONLY or ResultSet.CONCUR_UPDATABLE
    
    Returns:
    
    a new CallableStatement object containing the pre-compiled SQL statement that will produce ResultSet objects with the given type and concurrency
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs, this method is called on a closed connection or the given parameters are not ResultSet constants indicating type and concurrency
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this method or this method is not supported for the specified result set type and result set concurrency.
  - prepareCall
```
public java.sql.CallableStatement prepareCall(java.lang.String sql,
                                              int resultSetType,
                                              int resultSetConcurrency,
                                              int resultSetHoldability)
                                       throws java.sql.SQLException
```
    Creates a CallableStatement object that will generate ResultSet objects with the given type and concurrency. This method is the same as the prepareCall method above, but it allows the default result set type, result set concurrency type and holdability to be overridden.
    
    Specified by:
    
    prepareCall in interface java.sql.Connection
    
    Parameters:
    
    sql - a String object that is the SQL statement to be sent to the database; may contain on or more '?' parameters
    
    resultSetType - one of the following ResultSet constants: ResultSet.TYPE_FORWARD_ONLY, ResultSet.TYPE_SCROLL_INSENSITIVE, or ResultSet.TYPE_SCROLL_SENSITIVE
    
    resultSetConcurrency - one of the following ResultSet constants: ResultSet.CONCUR_READ_ONLY or ResultSet.CONCUR_UPDATABLE
    
    resultSetHoldability - one of the following ResultSet constants: ResultSet.HOLD_CURSORS_OVER_COMMIT or ResultSet.CLOSE_CURSORS_AT_COMMIT
    
    Returns:
    
    a new CallableStatement object, containing the pre-compiled SQL statement, that will generate ResultSet objects with the given type, concurrency, and holdability
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs, this method is called on a closed connection or the given parameters are not ResultSet constants indicating type, concurrency, and holdability
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this method or this method is not supported for the specified result set type, result set holdability and result set concurrency.
    
    Since:
    
    1.4
    
    See Also:
    
    ResultSet
  - createNewCallableStatement
```
private java.sql.CallableStatement createNewCallableStatement(java.lang.String query,
                                                              java.lang.String procedureName,
                                                              boolean isFunction,
                                                              java.lang.String databaseAndProcedure,
                                                              java.lang.String database,
                                                              java.lang.String arguments,
                                                              int resultSetType,
                                                              int resultSetConcurrency)
                                                       throws java.sql.SQLException
```
    Throws:
    
    java.sql.SQLException
  - nativeSQL
```
public java.lang.String nativeSQL(java.lang.String sql)
                           throws java.sql.SQLException
```
    Specified by:
    
    nativeSQL in interface java.sql.Connection
    
    Throws:
    
    java.sql.SQLException
  - getAutoCommit
```
public boolean getAutoCommit()
                      throws java.sql.SQLException
```
    returns true if statements on this connection are auto commited.
    
    Specified by:
    
    getAutoCommit in interface java.sql.Connection
    
    Returns:
    
    true if auto commit is on.
    
    Throws:
    
    java.sql.SQLException - if there is an error
  - setAutoCommit
```
public void setAutoCommit(boolean autoCommit)
                   throws java.sql.SQLException
```
    Sets whether this connection is auto commited.
    
    Specified by:
    
    setAutoCommit in interface java.sql.Connection
    
    Parameters:
    
    autoCommit - if it should be auto commited.
    
    Throws:
    
    java.sql.SQLException - if something goes wrong talking to the server.
  - commit
```
public void commit()
            throws java.sql.SQLException
```
    Sends commit to the server.
    
    Specified by:
    
    commit in interface java.sql.Connection
    
    Throws:
    
    java.sql.SQLException - if there is an error commiting.
  - rollback
```
public void rollback()
              throws java.sql.SQLException
```
    Rolls back a transaction.
    
    Specified by:
    
    rollback in interface java.sql.Connection
    
    Throws:
    
    java.sql.SQLException - if there is an error rolling back.
  - rollback
```
public void rollback(java.sql.Savepoint savepoint)
              throws java.sql.SQLException
```
    Undoes all changes made after the given Savepoint object was set.
    
    This method should be used only when auto-commit has been disabled.
    
    Specified by:
    
    rollback in interface java.sql.Connection
    
    Parameters:
    
    savepoint - the Savepoint object to roll back to
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs, this method is called while participating in a distributed transaction, this method is called on a closed connection, the Savepoint object is no longer valid, or this Connection object is currently in auto-commit mode
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this method
    
    Since:
    
    1.4
    
    See Also:
    
    Savepoint, rollback()
  - close
```
public void close()
           throws java.sql.SQLException
```
    close the connection.
    
    Specified by:
    
    close in interface java.lang.AutoCloseable
    
    Specified by:
    
    close in interface java.sql.Connection
    
    Throws:
    
    java.sql.SQLException - if there is a problem talking to the server.
  - isClosed
```
public boolean isClosed()
                 throws java.sql.SQLException
```
    checks if the connection is closed.
    
    Specified by:
    
    isClosed in interface java.sql.Connection
    
    Returns:
    
    true if the connection is closed
    
    Throws:
    
    java.sql.SQLException - if the connection cannot be closed.
  - getMetaData
```
public java.sql.DatabaseMetaData getMetaData()
                                      throws java.sql.SQLException
```
    returns the meta data about the database.
    
    Specified by:
    
    getMetaData in interface java.sql.Connection
    
    Returns:
    
    meta data about the db.
    
    Throws:
    
    java.sql.SQLException - if there is a problem creating the meta data.
  - isReadOnly
```
public boolean isReadOnly()
                   throws java.sql.SQLException
```
    Retrieves whether this Connection object is in read-only mode.
    
    Specified by:
    
    isReadOnly in interface java.sql.Connection
    
    Returns:
    
    true if this Connection object is read-only; false otherwise
    
    Throws:
    
    java.sql.SQLException - SQLException if a database access error occurs or this method is called on a closed connection
  - setReadOnly
```
public void setReadOnly(boolean readOnly)
                 throws java.sql.SQLException
```
    Sets whether this connection is read only.
    
    Specified by:
    
    setReadOnly in interface java.sql.Connection
    
    Parameters:
    
    readOnly - true if it should be read only.
    
    Throws:
    
    java.sql.SQLException - if there is a problem
  - getCatalog
```
public java.lang.String getCatalog()
                            throws java.sql.SQLException
```
    Retrieves this Connection object's current catalog name.
    
    Specified by:
    
    getCatalog in interface java.sql.Connection
    
    Returns:
    
    the current catalog name or null if there is none
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs or this method is called on a closed connection
    
    See Also:
    
    setCatalog(java.lang.String)
  - setCatalog
```
public void setCatalog(java.lang.String catalog)
                throws java.sql.SQLException
```
    Sets the given catalog name in order to select a subspace of this Connection object's database in which to work.
    
    If the driver does not support catalogs, it will silently ignore this request.
    MySQL treats catalogs and databases as equivalent
    
    Specified by:
    
    setCatalog in interface java.sql.Connection
    
    Parameters:
    
    catalog - the name of a catalog (subspace in this Connection object's database) in which to work
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs or this method is called on a closed connection
    
    See Also:
    
    getCatalog()
  - isServerMariaDb
```
public boolean isServerMariaDb()
                        throws java.sql.SQLException
```
    Throws:
    
    java.sql.SQLException
  - versionGreaterOrEqual
```
public boolean versionGreaterOrEqual(int major,
                                     int minor,
                                     int patch)
```
  - getTransactionIsolation
```
public int getTransactionIsolation()
                            throws java.sql.SQLException
```
    Retrieves this Connection object's current transaction isolation level.
    
    Specified by:
    
    getTransactionIsolation in interface java.sql.Connection
    
    Returns:
    
    the current transaction isolation level, which will be one of the following constants: Connection.TRANSACTION_READ_UNCOMMITTED, Connection.TRANSACTION_READ_COMMITTED, Connection.TRANSACTION_REPEATABLE_READ, Connection.TRANSACTION_SERIALIZABLE, or Connection.TRANSACTION_NONE.
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs or this method is called on a closed connection
    
    See Also:
    
    setTransactionIsolation(int)
  - setTransactionIsolation
```
public void setTransactionIsolation(int level)
                             throws java.sql.SQLException
```
    Attempts to change the transaction isolation level for this Connection object to the one given. The constants defined in the interface Connection are the possible transaction isolation levels.
    
    Note: If this method is called during a transaction, the result is implementation-defined.
    
    Specified by:
    
    setTransactionIsolation in interface java.sql.Connection
    
    Parameters:
    
    level - one of the following Connection constants: Connection.TRANSACTION_READ_UNCOMMITTED, Connection.TRANSACTION_READ_COMMITTED, Connection.TRANSACTION_REPEATABLE_READ, or Connection.TRANSACTION_SERIALIZABLE. (Note that Connection.TRANSACTION_NONE cannot be used because it specifies that transactions are not supported.)
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs, this method is called on a closed connection or the given parameter is not one of the Connection constants
    
    See Also:
    
    DatabaseMetaData.supportsTransactionIsolationLevel(int), getTransactionIsolation()
  - getWarnings
```
public java.sql.SQLWarning getWarnings()
                                throws java.sql.SQLException
```
    Retrieves the first warning reported by calls on this Connection object. If there is more than one warning, subsequent warnings will be chained to the first one and can be retrieved by calling the method SQLWarning.getNextWarning on the warning that was retrieved previously.
    
    This method may not be called on a closed connection; doing so will cause an SQLException to be thrown.
    
    Note: Subsequent warnings will be chained to this SQLWarning.
    
    Specified by:
    
    getWarnings in interface java.sql.Connection
    
    Returns:
    
    the first SQLWarning object or null if there are none
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs or this method is called on a closed connection
    
    See Also:
    
    SQLWarning
  - clearWarnings
```
public void clearWarnings()
                   throws java.sql.SQLException
```
    Clears all warnings reported for this Connection object. After a call to this method, the method getWarnings returns null until a new warning is reported for this Connection object.
    
    Specified by:
    
    clearWarnings in interface java.sql.Connection
    
    Throws:
    
    java.sql.SQLException - SQLException if a database access error occurs or this method is called on a closed connection
  - reenableWarnings
```
public void reenableWarnings()
```
    Reenable warnings, when next statement is executed.
  - getTypeMap
```
public java.util.Map<java.lang.String,java.lang.Class<?>> getTypeMap()
                                                              throws java.sql.SQLException
```
    Retrieves the Map object associated with this Connection object. Unless the application has added an entry, the type map returned will be empty.
    
    Specified by:
    
    getTypeMap in interface java.sql.Connection
    
    Returns:
    
    the java.util.Map object associated with this Connection object
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs or this method is called on a closed connection
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this method
    
    Since:
    
    1.2
    
    See Also:
    
    setTypeMap(java.util.Map<java.lang.String, java.lang.Class<?>>)
  - setTypeMap
```
public void setTypeMap(java.util.Map<java.lang.String,java.lang.Class<?>> map)
                throws java.sql.SQLException
```
    Installs the given TypeMap object as the type map for this Connection object. The type map will be used for the custom mapping of SQL structured types and distinct types.
    
    Specified by:
    
    setTypeMap in interface java.sql.Connection
    
    Parameters:
    
    map - the java.util.Map object to install as the replacement for this Connection object's default type map
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs, this method is called on a closed connection or the given parameter is not a java.util.Map object
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this method
    
    See Also:
    
    getTypeMap()
  - getHoldability
```
public int getHoldability()
                   throws java.sql.SQLException
```
    Retrieves the current holdability of ResultSet objects created using this Connection object.
    
    Specified by:
    
    getHoldability in interface java.sql.Connection
    
    Returns:
    
    the holdability, one of ResultSet.HOLD_CURSORS_OVER_COMMIT or ResultSet.CLOSE_CURSORS_AT_COMMIT
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs or this method is called on a closed connection
    
    Since:
    
    1.4
    
    See Also:
    
    setHoldability(int), DatabaseMetaData.getResultSetHoldability(), ResultSet
  - setHoldability
```
public void setHoldability(int holdability)
                    throws java.sql.SQLException
```
    Changes the default holdability of ResultSet objects created using this Connection object to the given holdability. The default holdability of ResultSet objects can be be determined by invoking DatabaseMetaData.getResultSetHoldability().
    
    Specified by:
    
    setHoldability in interface java.sql.Connection
    
    Parameters:
    
    holdability - a ResultSet holdability constant; one of ResultSet.HOLD_CURSORS_OVER_COMMIT or ResultSet.CLOSE_CURSORS_AT_COMMIT
    
    Throws:
    
    java.sql.SQLException - if a database access occurs, this method is called on a closed connection, or the given parameter is not a ResultSet constant indicating holdability
    
    java.sql.SQLFeatureNotSupportedException - if the given holdability is not supported
    
    See Also:
    
    getHoldability(), DatabaseMetaData.getResultSetHoldability(), ResultSet
  - setSavepoint
```
public java.sql.Savepoint setSavepoint()
                                throws java.sql.SQLException
```
    Creates an unnamed savepoint in the current transaction and returns the new Savepoint object that represents it.
    
    if setSavepoint is invoked outside of an active transaction, a transaction will be started at this newly created savepoint.
    
    Specified by:
    
    setSavepoint in interface java.sql.Connection
    
    Returns:
    
    the new Savepoint object
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs, this method is called while participating in a distributed transaction, this method is called on a closed connection or this Connection object is currently in auto-commit mode
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this method
    
    Since:
    
    1.4
    
    See Also:
    
    Savepoint
  - setSavepoint
```
public java.sql.Savepoint setSavepoint(java.lang.String name)
                                throws java.sql.SQLException
```
    Creates a savepoint with the given name in the current transaction and returns the new Savepoint object that represents it.
    if setSavepoint is invoked outside of an active transaction, a transaction will be started at this newly created savepoint.
    
    Specified by:
    
    setSavepoint in interface java.sql.Connection
    
    Parameters:
    
    name - a String containing the name of the savepoint
    
    Returns:
    
    the new Savepoint object
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs, this method is called while participating in a distributed transaction, this method is called on a closed connection or this Connection object is currently in auto-commit mode
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this method
    
    Since:
    
    1.4
    
    See Also:
    
    Savepoint
  - releaseSavepoint
```
public void releaseSavepoint(java.sql.Savepoint savepoint)
                      throws java.sql.SQLException
```
    Removes the specified Savepoint and subsequent Savepoint objects from the current transaction. Any reference to the savepoint after it have been removed will cause an SQLException to be thrown.
    
    Specified by:
    
    releaseSavepoint in interface java.sql.Connection
    
    Parameters:
    
    savepoint - the Savepoint object to be removed
    
    Throws:
    
    java.sql.SQLException - if a database access error occurs, this method is called on a closed connection or the given Savepoint object is not a valid savepoint in the current transaction
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this method
    
    Since:
    
    1.4
  - createClob
```
public java.sql.Clob createClob()
                         throws java.sql.SQLException
```
    Constructs an object that implements the Clob interface. The object returned initially contains no data. The setAsciiStream, setCharacterStream and setString methods of the Clob interface may be used to add data to the Clob.
    
    Specified by:
    
    createClob in interface java.sql.Connection
    
    Returns:
    
    An object that implements the Clob interface
    
    Throws:
    
    java.sql.SQLException - if an object that implements the Clob interface can not be constructed, this method is called on a closed connection or a database access error occurs.
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this data type
    
    Since:
    
    1.6
  - createBlob
```
public java.sql.Blob createBlob()
                         throws java.sql.SQLException
```
    Constructs an object that implements the Blob interface. The object returned initially contains no data. The setBinaryStream and setBytes methods of the Blob interface may be used to add data to the Blob.
    
    Specified by:
    
    createBlob in interface java.sql.Connection
    
    Returns:
    
    An object that implements the Blob interface
    
    Throws:
    
    java.sql.SQLException - if an object that implements the Blob interface can not be constructed, this method is called on a closed connection or a database access error occurs.
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this data type
    
    Since:
    
    1.6
  - createNClob
```
public java.sql.NClob createNClob()
                           throws java.sql.SQLException
```
    Constructs an object that implements the NClob interface. The object returned initially contains no data. The setAsciiStream, setCharacterStream and setString methods of the NClob interface may be used to add data to the NClob.
    
    Specified by:
    
    createNClob in interface java.sql.Connection
    
    Returns:
    
    An object that implements the NClob interface
    
    Throws:
    
    java.sql.SQLException - if an object that implements the NClob interface can not be constructed, this method is called on a closed connection or a database access error occurs.
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this data type
    
    Since:
    
    1.6
  - createSQLXML
```
public java.sql.SQLXML createSQLXML()
                             throws java.sql.SQLException
```
    Constructs an object that implements the SQLXML interface. The object returned initially contains no data. The createXmlStreamWriter object and setString method of the SQLXML interface may be used to add data to the SQLXML object.
    
    Specified by:
    
    createSQLXML in interface java.sql.Connection
    
    Returns:
    
    An object that implements the SQLXML interface
    
    Throws:
    
    java.sql.SQLException - if an object that implements the SQLXML interface can not be constructed, this method is called on a closed connection or a database access error occurs.
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this data type
    
    Since:
    
    1.6
  - isValid
```
public boolean isValid(int timeout)
                throws java.sql.SQLException
```
    Returns true if the connection has not been closed and is still valid. The driver shall submit a query on the connection or use some other mechanism that positively verifies the connection is still valid when this method is called.
    
    The query submitted by the driver to validate the connection shall be executed in the context of the current transaction.
    
    Specified by:
    
    isValid in interface java.sql.Connection
    
    Parameters:
    
    timeout - - The time in seconds to wait for the database operation used to validate the connection to complete. If the timeout period expires before the operation completes, this method returns false. A value of 0 indicates a timeout is not applied to the database operation.
    
    Returns:
    
    true if the connection is valid, false otherwise
    
    Throws:
    
    java.sql.SQLException - if the value supplied for timeout is less then 0
    
    Since:
    
    1.6
    
    See Also:
    
    DatabaseMetaData.getClientInfoProperties()
  - setClientInfo
```
public void setClientInfo(java.util.Properties properties)
                   throws java.sql.SQLClientInfoException
```
    Sets the value of the connection's client info properties. The Properties object contains the names and values of the client info properties to be set. The set of client info properties contained in the properties list replaces the current set of client info properties on the connection. If a property that is currently set on the connection is not present in the properties list, that property is cleared. Specifying an empty properties list will clear all of the properties on the connection. See setClientInfo (String, String) for more information.
    
    If an error occurs in setting any of the client info properties, a SQLClientInfoException is thrown. The SQLClientInfoException contains information indicating which client info properties were not set. The state of the client information is unknown because some databases do not allow multiple client info properties to be set atomically. For those databases, one or more properties may have been set before the error occurred.
    
    Specified by:
    
    setClientInfo in interface java.sql.Connection
    
    Parameters:
    
    properties - the list of client info properties to set
    
    Throws:
    
    java.sql.SQLClientInfoException - if the database server returns an error while setting the clientInfo values on the database server or this method is called on a closed connection
    
    Since:
    
    1.6
    
    See Also:
    
    setClientInfo(String, String)
  - setClientInfo
```
public void setClientInfo(java.lang.String name,
                          java.lang.String value)
                   throws java.sql.SQLClientInfoException
```
    Sets the value of the client info property specified by name to the value specified by value.
    
    Applications may use the DatabaseMetaData.getClientInfoProperties method to determine the client info properties supported by the driver and the maximum length that may be specified for each property.
    
    The driver stores the value specified in a suitable location in the database. For example in a special register, session parameter, or system table column. For efficiency the driver may defer setting the value in the database until the next time a statement is executed or prepared. Other than storing the client information in the appropriate place in the database, these methods shall not alter the behavior of the connection in anyway. The values supplied to these methods are used for accounting, diagnostics and debugging purposes only.
    
    The driver shall generate a warning if the client info name specified is not recognized by the driver.
    
    If the value specified to this method is greater than the maximum length for the property the driver may either truncate the value and generate a warning or generate a SQLClientInfoException. If the driver generates a SQLClientInfoException, the value specified was not set on the connection.
    
    The following are standard client info properties. Drivers are not required to support these properties however if the driver supports a client info property that can be described by one of the standard properties, the standard property name should be used.
    - ApplicationName - The name of the application currently utilizing the connection
    - ClientUser - The name of the user that the application using the connection is performing work for. This may not be the same as the user name that was used in establishing the connection.
    - ClientHostname - The hostname of the computer the application using the connection is running on.
    Specified by:
    
    setClientInfo in interface java.sql.Connection
    
    Parameters:
    
    name - The name of the client info property to set
    
    value - The value to set the client info property to. If the value is null, the current value of the specified property is cleared.
    
    Throws:
    
    java.sql.SQLClientInfoException - if the database server returns an error while setting the client info value on the database server or this method is called on a closed connection
    
    Since:
    
    1.6
  - checkClientClose
```
private void checkClientClose(java.lang.String name)
                       throws java.sql.SQLClientInfoException
```
    Throws:
    
    java.sql.SQLClientInfoException
  - checkClientReconnect
```
private void checkClientReconnect(java.lang.String name)
                           throws java.sql.SQLClientInfoException
```
    Throws:
    
    java.sql.SQLClientInfoException
  - checkClientValidProperty
```
private void checkClientValidProperty(java.lang.String name)
                               throws java.sql.SQLClientInfoException
```
    Throws:
    
    java.sql.SQLClientInfoException
  - buildClientQuery
```
private java.lang.String buildClientQuery(java.lang.String name,
                                          java.lang.String value)
```
  - getClientInfo
```
public java.util.Properties getClientInfo()
                                   throws java.sql.SQLException
```
    Returns a list containing the name and current value of each client info property supported by the driver. The value of a client info property may be null if the property has not been set and does not have a default value.
    
    Specified by:
    
    getClientInfo in interface java.sql.Connection
    
    Returns:
    
    A Properties object that contains the name and current value of each of the client info properties supported by the driver.
    
    Throws:
    
    java.sql.SQLException - if the database server returns an error when fetching the client info values from the database or this method is called on a closed connection
    
    Since:
    
    1.6
  - getClientInfo
```
public java.lang.String getClientInfo(java.lang.String name)
                               throws java.sql.SQLException
```
    Returns the value of the client info property specified by name. This method may return null if the specified client info property has not been set and does not have a default value. This method will also return null if the specified client info property name is not supported by the driver. Applications may use the DatabaseMetaData.getClientInfoProperties method to determine the client info properties supported by the driver.
    
    Specified by:
    
    getClientInfo in interface java.sql.Connection
    
    Parameters:
    
    name - The name of the client info property to retrieve
    
    Returns:
    
    The value of the client info property specified
    
    Throws:
    
    java.sql.SQLException - if the database server returns an error when fetching the client info value from the database or this method is called on a closed connection
    
    Since:
    
    1.6
    
    See Also:
    
    DatabaseMetaData.getClientInfoProperties()
  - createArrayOf
```
public java.sql.Array createArrayOf(java.lang.String typeName,
                                    java.lang.Object[] elements)
                             throws java.sql.SQLException
```
    Factory method for creating Array objects. Note: When createArrayOf is used to create an array object that maps to a primitive data type, then it is implementation-defined whether the Array object is an array of that primitive data type or an array of Object. Note: The JDBC driver is responsible for mapping the elements Object array to the default JDBC SQL type defined in java.sql.Types for the given class of Object. The default mapping is specified in Appendix B of the JDBC specification. If the resulting JDBC type is not the appropriate type for the given typeName then it is implementation defined whether an SQLException is thrown or the driver supports the resulting conversion.
    
    Specified by:
    
    createArrayOf in interface java.sql.Connection
    
    Parameters:
    
    typeName - the SQL name of the type the elements of the array map to. The typeName is a database-specific name which may be the name of a built-in type, a user-defined type or a standard SQL type supported by this database. This is the value returned by Array.getBaseTypeName
    
    elements - the elements that populate the returned object
    
    Returns:
    
    an Array object whose elements map to the specified SQL type
    
    Throws:
    
    java.sql.SQLException - if a database error occurs, the JDBC type is not appropriate for the typeName and the conversion is not supported, the typeName is null or this method is called on a closed connection
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this data type
    
    Since:
    
    1.6
  - createStruct
```
public java.sql.Struct createStruct(java.lang.String typeName,
                                    java.lang.Object[] attributes)
                             throws java.sql.SQLException
```
    Factory method for creating Struct objects.
    
    Specified by:
    
    createStruct in interface java.sql.Connection
    
    Parameters:
    
    typeName - the SQL type name of the SQL structured type that this Struct object maps to. The typeName is the name of a user-defined type that has been defined for this database. It is the value returned by Struct.getSQLTypeName.
    
    attributes - the attributes that populate the returned object
    
    Returns:
    
    a Struct object that maps to the given SQL type and is populated with the given attributes
    
    Throws:
    
    java.sql.SQLException - if a database error occurs, the typeName is null or this method is called on a closed connection
    
    java.sql.SQLFeatureNotSupportedException - if the JDBC driver does not support this data type
    
    Since:
    
    1.6
  - unwrap
```
public <T> T unwrap(java.lang.Class<T> iface)
             throws java.sql.SQLException
```
    Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy. If the receiver implements the interface then the result is the receiver or a proxy for the receiver. If the receiver is a wrapper and the wrapped object implements the interface then the result is the wrapped object or a proxy for the wrapped object. Otherwise return the the result of calling unwrap recursively on the wrapped object or a proxy for that result. If the receiver is not a wrapper and does not implement the interface, then an SQLException is thrown.
    
    Specified by:
    
    unwrap in interface java.sql.Wrapper
    
    Parameters:
    
    iface - A Class defining an interface that the result must implement.
    
    Returns:
    
    an object that implements the interface. May be a proxy for the actual implementing object.
    
    Throws:
    
    java.sql.SQLException - If no object found that implements the interface
    
    Since:
    
    1.6
  - isWrapperFor
```
public boolean isWrapperFor(java.lang.Class<?> iface)
                     throws java.sql.SQLException
```
    Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an object that does. Returns false otherwise. If this implements the interface then return true, else if this is a wrapper then return the result of recursively calling isWrapperFor on the wrapped object. If this does not implement the interface and is not a wrapper, return false. This method should be implemented as a low-cost operation compared to unwrap so that callers can use this method to avoid expensive unwrap calls that may fail. If this method returns true then calling unwrap with the same argument should succeed.
    
    Specified by:
    
    isWrapperFor in interface java.sql.Wrapper
    
    Parameters:
    
    iface - a Class defining an interface.
    
    Returns:
    
    true if this implements the interface or directly or indirectly wraps an object that does.
    
    Throws:
    
    java.sql.SQLException - if an error occurs while determining whether this is a wrapper for an object with the given interface.
    
    Since:
    
    1.6
  - getUsername
```
public java.lang.String getUsername()
```
    returns the username for the connection.
    
    Returns:
    
    the username.
  - getHostname
```
public java.lang.String getHostname()
```
    returns the hostname for the connection.
    
    Returns:
    
    the hostname.
  - getPort
```
public int getPort()
```
    returns the port for the connection.
    
    Returns:
    
    the port
  - getDatabase
```
private java.lang.String getDatabase()
```
    returns the database.
    
    Returns:
    
    the database
  - getPinGlobalTxToPhysicalConnection
```
protected boolean getPinGlobalTxToPhysicalConnection()
```
  - setHostFailed
```
public void setHostFailed()
```
    If failover is not activated, will close connection when a connection error occur.
  - getLowercaseTableNames
```
public int getLowercaseTableNames()
                           throws java.sql.SQLException
```
    Are table case sensitive or not . Default Value: 0 (Unix), 1 (Windows), 2 (Mac OS X). If set to 0 (the default on Unix-based systems), table names and aliases and database names are compared in a case-sensitive manner. If set to 1 (the default on Windows), names are stored in lowercase and not compared in a case-sensitive manner. If set to 2 (the default on Mac OS X), names are stored as declared, but compared in lowercase.
    
    Returns:
    
    int value.
    
    Throws:
    
    java.sql.SQLException - if a connection error occur
  - abort
```
public void abort(java.util.concurrent.Executor executor)
           throws java.sql.SQLException
```
    Abort connection.
    
    Specified by:
    
    abort in interface java.sql.Connection
    
    Parameters:
    
    executor - executor
    
    Throws:
    
    java.sql.SQLException - if security manager doesn't permit it.
  - getNetworkTimeout
```
public int getNetworkTimeout()
                      throws java.sql.SQLException
```
    Get network timeout.
    
    Specified by:
    
    getNetworkTimeout in interface java.sql.Connection
    
    Returns:
    
    timeout
    
    Throws:
    
    java.sql.SQLException - if database socket error occur
  - getSchema
```
public java.lang.String getSchema()
                           throws java.sql.SQLException
```
    Specified by:
    
    getSchema in interface java.sql.Connection
    
    Throws:
    
    java.sql.SQLException
  - setSchema
```
public void setSchema(java.lang.String arg0)
               throws java.sql.SQLException
```
    Specified by:
    
    setSchema in interface java.sql.Connection
    
    Throws:
    
    java.sql.SQLException
  - setNetworkTimeout
```
public void setNetworkTimeout(java.util.concurrent.Executor executor,
                              int milliseconds)
                       throws java.sql.SQLException
```
    Change network timeout
    
    Specified by:
    
    setNetworkTimeout in interface java.sql.Connection
    
    Parameters:
    
    executor - executor (can be null)
    
    milliseconds - network timeout in milliseconds.
    
    Throws:
    
    java.sql.SQLException - if security manager doesn't permit it.
  - getServerThreadId
```
public long getServerThreadId()
```
  - canUseServerTimeout
```
public boolean canUseServerTimeout()
```
  - setDefaultTransactionIsolation
```
public void setDefaultTransactionIsolation(int defaultTransactionIsolation)
```
  - reset
```
public void reset()
           throws java.sql.SQLException
```
    Reset connection set has it was after creating a "fresh" new connection. defaultTransactionIsolation must have been initialized. BUT : - session variable state are reset only if option useResetConnection is set and - if using the option "useServerPrepStmts", PREPARE statement are still prepared
    
    Throws:
    
    java.sql.SQLException - if resetting operation failed

Class MariaDbConnection

Field Summary

Fields inherited from interface java.sql.Connection

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

logger

CALLABLE_STATEMENT_PATTERN

PREPARABLE_STATEMENT_PATTERN

lock

protocol

pooledConnection

callableStatementCache

nullCatalogMeansCurrent

lowercaseTableNames

canUseServerTimeout

sessionStateAware

stateFlag

defaultTransactionIsolation

savepointCount

options

warningsCleared

Constructor Detail

MariaDbConnection

Method Detail

newConnection

quoteIdentifier

unquoteIdentifier

getProtocol

createStatement

createStatement

createStatement

checkConnection

clientPrepareStatement

serverPrepareStatement

prepareStatement

prepareStatement

prepareStatement

prepareStatement

prepareStatement

prepareStatement

internalPrepareStatement

prepareCall

prepareCall

prepareCall

createNewCallableStatement

nativeSQL

getAutoCommit

setAutoCommit

commit

rollback

rollback

close

isClosed

getMetaData

isReadOnly

setReadOnly

getCatalog

setCatalog

isServerMariaDb

versionGreaterOrEqual

getTransactionIsolation

setTransactionIsolation

getWarnings

clearWarnings

reenableWarnings

getTypeMap

setTypeMap

getHoldability

setHoldability

setSavepoint

setSavepoint

releaseSavepoint

createClob

createBlob

createNClob

createSQLXML

isValid

setClientInfo