Package org.eclipse.jgit.internal.storage.file

Class PackBitmapIndexBuilder

java.lang.Object

org.eclipse.jgit.internal.storage.file.PackBitmapIndex

org.eclipse.jgit.internal.storage.file.PackBitmapIndexBuilder

public class PackBitmapIndexBuilder
extends PackBitmapIndex

Helper for constructing PackBitmapIndexes.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PackBitmapIndexBuilder.StoredEntry	Data object for the on disk representation of a bitmap entry.

Field Summary

Fields inherited from class org.eclipse.jgit.internal.storage.file.PackBitmapIndex

FLAG_REUSE

Constructor Summary

Constructors

Constructor	Description
PackBitmapIndexBuilder(List<ObjectToPack> byName)	Creates a PackBitmapIndex used for building the contents of an index file.

Method Summary

Modifier and Type	Method	Description
void	addBitmap(AnyObjectId objectId, com.googlecode.javaewah.EWAHCompressedBitmap bitmap, int flags)	Stores the bitmap for the objectId.
void	addBitmap(AnyObjectId objectId, BitmapIndex.Bitmap bitmap, int flags)	Stores the bitmap for the objectId.
void	clearBitmaps()	Removes all the bitmaps entries added.
int	findPosition(AnyObjectId objectId)	Finds the position in the bitmap of the object.
com.googlecode.javaewah.EWAHCompressedBitmap	getBitmap(AnyObjectId objectId)	Returns the previously constructed bitmap for the object.
int	getBitmapCount()
com.googlecode.javaewah.EWAHCompressedBitmap	getBlobs()
com.googlecode.javaewah.EWAHCompressedBitmap	getCommits()
Iterable<PackBitmapIndexBuilder.StoredEntry>	getCompressedBitmaps()
ObjectId	getObject(int position)	Get the object at the bitmap position.
int	getObjectCount()	Obtain the total number of objects described by this index.
int	getOptions()
com.googlecode.javaewah.EWAHCompressedBitmap	getTags()
com.googlecode.javaewah.EWAHCompressedBitmap	getTrees()
com.googlecode.javaewah.EWAHCompressedBitmap	ofObjectType(com.googlecode.javaewah.EWAHCompressedBitmap bitmap, int type)	Returns a bitmap containing positions for objects that have the given Git type.

Methods inherited from class java.lang.Object

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

Methods inherited from class org.eclipse.jgit.internal.storage.file.PackBitmapIndex

open, read

Constructor Detail

PackBitmapIndexBuilder

public PackBitmapIndexBuilder(List<ObjectToPack> byName)

Creates a PackBitmapIndex used for building the contents of an index file.

Parameters:

byName - objects sorted by name.

Method Detail

addBitmap

public void addBitmap(AnyObjectId objectId,
                      BitmapIndex.Bitmap bitmap,
                      int flags)

Stores the bitmap for the objectId.

Parameters:

objectId - the object id key for the bitmap.

bitmap - the bitmap

flags - the flags to be stored with the bitmap

addBitmap

public void addBitmap(AnyObjectId objectId,
                      com.googlecode.javaewah.EWAHCompressedBitmap bitmap,
                      int flags)

Stores the bitmap for the objectId.

Parameters:

objectId - the object id key for the bitmap.

bitmap - the bitmap

flags - the flags to be stored with the bitmap

ofObjectType

public com.googlecode.javaewah.EWAHCompressedBitmap ofObjectType(com.googlecode.javaewah.EWAHCompressedBitmap bitmap,
                                                                 int type)

Description copied from class: PackBitmapIndex

Returns a bitmap containing positions for objects that have the given Git type.

Specified by:

ofObjectType in class PackBitmapIndex

Parameters:

bitmap - the object bitmap.

type - the Git type.

Returns:

the object bitmap with only objects of the Git type.

findPosition

public int findPosition(AnyObjectId objectId)

Description copied from class: PackBitmapIndex

Finds the position in the bitmap of the object.

Specified by:

findPosition in class PackBitmapIndex

Parameters:

objectId - the id for which the bitmap position will be found.

Returns:

the bitmap id or -1 if the object was not found.

getObject

public ObjectId getObject(int position)
                   throws IllegalArgumentException

Description copied from class: PackBitmapIndex

Get the object at the bitmap position.

Specified by:

getObject in class PackBitmapIndex

Parameters:

position - the id for which the object will be found.

Returns:

the ObjectId.

Throws:

IllegalArgumentException - when the item is not found.

getCommits

public com.googlecode.javaewah.EWAHCompressedBitmap getCommits()

Returns:

the commit object bitmap.

getTrees

public com.googlecode.javaewah.EWAHCompressedBitmap getTrees()

Returns:

the tree object bitmap.

getBlobs

public com.googlecode.javaewah.EWAHCompressedBitmap getBlobs()

Returns:

the blob object bitmap.

getTags

public com.googlecode.javaewah.EWAHCompressedBitmap getTags()

Returns:

the tag object bitmap.

getOptions

public int getOptions()

Returns:

the index storage options.

getBitmapCount

public int getBitmapCount()

Returns:

the number of bitmaps.

clearBitmaps

public void clearBitmaps()

Removes all the bitmaps entries added.

getObjectCount

public int getObjectCount()

Description copied from class: PackBitmapIndex

Obtain the total number of objects described by this index. getObjectCount() - 1 is the largest bit that will be set in a bitmap.

Specified by:

getObjectCount in class PackBitmapIndex

Returns:

number of objects in this index, and likewise in the associated pack that this index was generated from.

getCompressedBitmaps

public Iterable<PackBitmapIndexBuilder.StoredEntry> getCompressedBitmaps()

Returns:

an iterator over the xor compressed entries.

getBitmap

public com.googlecode.javaewah.EWAHCompressedBitmap getBitmap(AnyObjectId objectId)

Description copied from class: PackBitmapIndex

Returns the previously constructed bitmap for the object.

Specified by:

getBitmap in class PackBitmapIndex

Parameters:

objectId - the id for which the bitmap will be found.

Returns:

the bitmap or null if the object was not found.