org.eclipse.jgit.internal.storage.reftree

Class RefTreeUpdate

java.lang.Object

org.eclipse.jgit.lib.RefUpdate

org.eclipse.jgit.internal.storage.reftree.RefTreeUpdate

class RefTreeUpdate
extends RefUpdate

Single reference update to RefTreeDatabase.

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.jgit.lib.RefUpdate

RefUpdate.Result

Field Summary

Fields

Modifier and Type	Field and Description
private RefTreeBatch	batch
private Ref	oldRef
private RefTreeDatabase	refdb
private RevWalk	rw

Constructor Summary

Constructors

Constructor and Description
RefTreeUpdate(RefTreeDatabase refdb, Ref ref)

Method Summary

Modifier and Type	Method and Description
protected RefUpdate.Result	doDelete(RefUpdate.Result desiredResult) Do delete
protected RefUpdate.Result	doLink(java.lang.String target) Do link
protected RefUpdate.Result	doUpdate(RefUpdate.Result desiredResult) Do update
protected RefDatabase	getRefDatabase() Get the reference database this update modifies.
protected Repository	getRepository() Get the repository storing the database's objects.
private Ref	newRef(java.lang.String name, ObjectId id)
private RefUpdate.Result	run(Ref newRef, RefUpdate.Result desiredResult)
(package private) static RefUpdate.Result	translate(ReceiveCommand.Result r, RefUpdate.Result desiredResult)
protected boolean	tryLock(boolean deref) Try to acquire the lock on the reference.
protected void	unlock() Releases the lock taken by RefUpdate.tryLock(boolean) if it succeeded.

Methods inherited from class org.eclipse.jgit.lib.RefUpdate

delete, delete, disableRefLog, forceUpdate, getExpectedOldObjectId, getName, getNewObjectId, getOldObjectId, getPushCertificate, getRef, getRefLogIdent, getRefLogMessage, getResult, isDetachingSymbolicRef, isForceRefLog, isForceUpdate, isRefLogIncludingResult, link, setCheckConflicting, setDetachingSymbolicRef, setExpectedOldObjectId, setForceRefLog, setForceUpdate, setNewObjectId, setOldObjectId, setPushCertificate, setRefLogIdent, setRefLogMessage, update, update

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

refdb

private final RefTreeDatabase refdb

rw

private RevWalk rw

batch

private RefTreeBatch batch

oldRef

private Ref oldRef

Constructor Detail

RefTreeUpdate

RefTreeUpdate(RefTreeDatabase refdb,
              Ref ref)

Method Detail

getRefDatabase

protected RefDatabase getRefDatabase()

Get the reference database this update modifies.

Specified by:

getRefDatabase in class RefUpdate

Returns:

the reference database this update modifies.

getRepository

protected Repository getRepository()

Get the repository storing the database's objects.

Specified by:

getRepository in class RefUpdate

Returns:

the repository storing the database's objects.

tryLock

protected boolean tryLock(boolean deref)
                   throws java.io.IOException

Try to acquire the lock on the reference.

If the locking was successful the implementor must set the current identity value by calling RefUpdate.setOldObjectId(ObjectId).

Specified by:

tryLock in class RefUpdate

Parameters:

deref - true if the lock should be taken against the leaf level reference; false if it should be taken exactly against the current reference.

Returns:

true if the lock was acquired and the reference is likely protected from concurrent modification; false if it failed.

Throws:

java.io.IOException - the lock couldn't be taken due to an unexpected storage failure, and not because of a concurrent update.

unlock

protected void unlock()

Releases the lock taken by RefUpdate.tryLock(boolean) if it succeeded.

Specified by:

unlock in class RefUpdate

doUpdate

protected RefUpdate.Result doUpdate(RefUpdate.Result desiredResult)
                             throws java.io.IOException

Do update

Specified by:

doUpdate in class RefUpdate

Parameters:

desiredResult - a RefUpdate.Result object.

Returns:

result

Throws:

java.io.IOException

newRef

private Ref newRef(java.lang.String name,
                   ObjectId id)
            throws MissingObjectException,
                   java.io.IOException

Throws:

MissingObjectException

java.io.IOException

doDelete

protected RefUpdate.Result doDelete(RefUpdate.Result desiredResult)
                             throws java.io.IOException

Do delete

Specified by:

doDelete in class RefUpdate

Parameters:

desiredResult - a RefUpdate.Result object.

Returns:

result

Throws:

java.io.IOException

doLink

protected RefUpdate.Result doLink(java.lang.String target)
                           throws java.io.IOException

Do link

Specified by:

doLink in class RefUpdate

Parameters:

target - a String object.

Returns:

RefUpdate.Result.NEW on success.

Throws:

java.io.IOException

run

private RefUpdate.Result run(@Nullable
                             Ref newRef,
                             RefUpdate.Result desiredResult)
                      throws java.io.IOException

Throws:

java.io.IOException

translate

static RefUpdate.Result translate(ReceiveCommand.Result r,
                                  RefUpdate.Result desiredResult)