org.eclipse.jgit.notes

Class LeafBucket

java.lang.Object

org.eclipse.jgit.notes.NoteBucket

org.eclipse.jgit.notes.InMemoryNoteBucket

org.eclipse.jgit.notes.LeafBucket

class LeafBucket
extends InMemoryNoteBucket

A note tree holding only notes, with no subtrees. The leaf bucket contains on average less than 256 notes, all of whom share the same leading prefix. If a notes branch has less than 256 notes, the top level tree of the branch should be a LeafBucket. Once a notes branch has more than 256 notes, the root should be a FanoutBucket and the LeafBucket will appear only as a cell of a FanoutBucket. Entries within the LeafBucket are stored sorted by ObjectId, and lookup is performed using binary search. As the entry list should contain fewer than 256 elements, the average number of compares to find an element should be less than 8 due to the O(log N) lookup behavior. A LeafBucket must be parsed from a tree object by NoteParser.

Field Summary

Fields

Modifier and Type	Field and Description
private int	cnt Number of items in notes.
(package private) static int	MAX_SIZE
private Note[]	notes All note blobs in this bucket, sorted sequentially.

Fields inherited from class org.eclipse.jgit.notes.InMemoryNoteBucket

nonNotes, prefixLen

Constructor Summary

Constructors

Constructor and Description
LeafBucket(int prefixLen)

Method Summary

Modifier and Type	Method and Description
(package private) InMemoryNoteBucket	append(Note note)
private TreeFormatter	build()
(package private) int	estimateSize(AnyObjectId noteOn, ObjectReader or)
(package private) Note	get(int index)
(package private) Note	getNote(AnyObjectId objId, ObjectReader or)
(package private) ObjectId	getTreeId()
private void	growIfFull()
(package private) java.util.Iterator<Note>	iterator(AnyObjectId objId, ObjectReader reader)
(package private) void	parseOneEntry(AnyObjectId noteOn, AnyObjectId noteData)
private int	search(AnyObjectId objId)
(package private) InMemoryNoteBucket	set(AnyObjectId noteOn, AnyObjectId noteData, ObjectReader or)
private boolean	shouldSplit()
(package private) int	size()
(package private) FanoutBucket	split()
private int	treeSize(int nameLen)
(package private) ObjectId	writeTree(ObjectInserter inserter)

Methods inherited from class java.lang.Object

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

Field Detail

MAX_SIZE

static final int MAX_SIZE

See Also:

Constant Field Values

notes

private Note[] notes

All note blobs in this bucket, sorted sequentially.

cnt

private int cnt

Number of items in notes.

Constructor Detail

LeafBucket

LeafBucket(int prefixLen)

Method Detail

search

private int search(AnyObjectId objId)

getNote

Note getNote(AnyObjectId objId,
             ObjectReader or)

Specified by:

getNote in class NoteBucket

get

Note get(int index)

size

int size()

iterator

java.util.Iterator<Note> iterator(AnyObjectId objId,
                                  ObjectReader reader)

Specified by:

iterator in class NoteBucket

estimateSize

int estimateSize(AnyObjectId noteOn,
                 ObjectReader or)
          throws java.io.IOException

Specified by:

estimateSize in class NoteBucket

Throws:

java.io.IOException

set

InMemoryNoteBucket set(AnyObjectId noteOn,
                       AnyObjectId noteData,
                       ObjectReader or)
                throws java.io.IOException

Specified by:

set in class NoteBucket

Throws:

java.io.IOException

writeTree

ObjectId writeTree(ObjectInserter inserter)
            throws java.io.IOException

Specified by:

writeTree in class NoteBucket

Throws:

java.io.IOException

getTreeId

ObjectId getTreeId()

Specified by:

getTreeId in class NoteBucket

build

private TreeFormatter build()

treeSize

private int treeSize(int nameLen)

parseOneEntry

void parseOneEntry(AnyObjectId noteOn,
                   AnyObjectId noteData)

append

InMemoryNoteBucket append(Note note)

Specified by:

append in class InMemoryNoteBucket

growIfFull

private void growIfFull()

shouldSplit

private boolean shouldSplit()

split

FanoutBucket split()