Module org.eclipse.jgit

Package org.eclipse.jgit.internal.storage.dfs

Class DfsPackFileMidxSingle

java.lang.Object

org.eclipse.jgit.internal.storage.dfs.DfsPackFile

org.eclipse.jgit.internal.storage.dfs.DfsPackFileMidx

org.eclipse.jgit.internal.storage.dfs.DfsPackFileMidxSingle

public final class DfsPackFileMidxSingle
extends DfsPackFileMidx

A single pack that looks like a midx, to be used in the midx chain

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.jgit.internal.storage.dfs.DfsPackFileMidx

DfsPackFileMidx.DfsPackOffset, DfsPackFileMidx.VOffsetCalculator

Nested classes/interfaces inherited from class org.eclipse.jgit.internal.storage.dfs.DfsPackFile

DfsPackFile.CachedStreamIndexFactory, DfsPackFile.CachedStreamPackIndexes, DfsPackFile.IndexFactory, DfsPackFile.PackBitmapIndexLoader

Field Summary

Fields

Modifier and Type	Field	Description
protected Exception	invalidatingCause	Exception that caused the packfile to be flagged as invalid

Fields inherited from class org.eclipse.jgit.internal.storage.dfs.DfsPackFile

DEFAULT_BITMAP_LOADER, OFFSET_SORT

Method Summary

Modifier and Type	Method	Description
ObjectIdSet	asObjectIdSet(DfsReader ctx)	Get a view of this packfile as a set of objects
int	findIdxPosition(DfsReader ctx, AnyObjectId id)
PackBitmapIndex	getBitmapIndex(DfsReader ctx)	Get the BitmapIndex for this PackFile.
protected byte[]	getChecksum(DfsReader ctx)	Return checksum of the midx
CommitGraph	getCommitGraph(DfsReader ctx)	Get the Commit Graph for this PackFile.
List<DfsPackFile>	getCoveredPacks()	Packs indexed by this multipack index (base NOT included)
List<ObjectToPack>	getLocalObjects(DfsReader ctx)
DfsPackFileMidx	getMultipackIndexBase()	Base of this multipack index
protected int	getObjectCount(DfsReader ctx)	Count of objects in this pack (i.e. including, recursively, its base)
protected DfsPackFileMidx.VOffsetCalculator	getOffsetCalculator()	Get the object calculator of this midx
PackReverseIndex	getReverseIdx(DfsReader ctx)	Get the PackReverseIndex for this PackFile.
boolean	hasObject(DfsReader ctx, AnyObjectId id)	Check if an object is stored within this pack.
protected MultiPackIndex.MidxIterator	localIterator(DfsReader ctx)	Get a midx iterator over the contents of *this* midx, without the base.

Methods inherited from class org.eclipse.jgit.internal.storage.dfs.DfsPackFileMidx

create, getAllCoveredPacks, getPackIndex

Methods inherited from class org.eclipse.jgit.internal.storage.dfs.DfsPackFile

getPackDescription, isIndexLoaded

Methods inherited from class java.lang.Object

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

Field Details

invalidatingCause

protected volatile Exception invalidatingCause

Exception that caused the packfile to be flagged as invalid

Method Details

getOffsetCalculator

protected DfsPackFileMidx.VOffsetCalculator getOffsetCalculator()

Description copied from class: DfsPackFileMidx

Get the object calculator of this midx

Specified by:

getOffsetCalculator in class DfsPackFileMidx

Returns:

an offset calculator for this midx (including its chain)

asObjectIdSet

public ObjectIdSet asObjectIdSet(DfsReader ctx)
                          throws IOException

Description copied from class: DfsPackFile

Get a view of this packfile as a set of objects

To use when the caller only needs to check inclusion (without specific order or getting offsets).

Overrides:

asObjectIdSet in class DfsPackFile

Parameters:

ctx - reader context

Returns:

a view of this packfile as a set of objects

Throws:

IOException - cannot load the backing data from storage

getReverseIdx

public PackReverseIndex getReverseIdx(DfsReader ctx)
                               throws IOException

Description copied from class: DfsPackFile

Get the PackReverseIndex for this PackFile.

Specified by:

getReverseIdx in class DfsPackFileMidx

Parameters:

ctx - reader context to support reading from the backing store if the index is not already loaded in memory

Returns:

the PackReverseIndex

Throws:

IOException - the pack index is not available, or is corrupt

getBitmapIndex

public PackBitmapIndex getBitmapIndex(DfsReader ctx)
                               throws IOException

Description copied from class: DfsPackFile

Get the BitmapIndex for this PackFile.

Overrides:

getBitmapIndex in class DfsPackFile

Parameters:

ctx - reader context to support reading from the backing store if the index is not already loaded in memory.

Returns:

the BitmapIndex.

Throws:

IOException - the bitmap index is not available, or is corrupt.

getCommitGraph

public CommitGraph getCommitGraph(DfsReader ctx)
                           throws IOException

Description copied from class: DfsPackFile

Get the Commit Graph for this PackFile.

Overrides:

getCommitGraph in class DfsPackFile

Parameters:

ctx - reader context to support reading from the backing store if the index is not already loaded in memory.

Returns:

CommitGraph, null if pack doesn't have it.

Throws:

IOException - the Commit Graph is not available, or is corrupt.

getObjectCount

protected int getObjectCount(DfsReader ctx)
                      throws IOException

Count of objects in this pack (i.e. including, recursively, its base)

Overrides:

getObjectCount in class DfsPackFileMidx

Parameters:

ctx - a reader

Returns:

count of objects in this pack, including its bases

Throws:

IOException - an error reading a midx in the chain

getChecksum

protected byte[] getChecksum(DfsReader ctx)
                      throws IOException

Description copied from class: DfsPackFileMidx

Return checksum of the midx

Specified by:

getChecksum in class DfsPackFileMidx

Parameters:

ctx - a reader

Returns:

checksum of the midx

Throws:

IOException - an error reading the file

localIterator

protected MultiPackIndex.MidxIterator localIterator(DfsReader ctx)
                                             throws IOException

Description copied from class: DfsPackFileMidx

Get a midx iterator over the contents of *this* midx, without the base.

Specified by:

localIterator in class DfsPackFileMidx

Parameters:

ctx - a ready

Returns:

an iterator over the objects in this midx in sha1 order

Throws:

IOException - an error loading the underlying data

getCoveredPacks

public List<DfsPackFile> getCoveredPacks()

Packs indexed by this multipack index (base NOT included)

Specified by:

getCoveredPacks in class DfsPackFileMidx

Returns:

packs indexed by this multipack index

getMultipackIndexBase

public DfsPackFileMidx getMultipackIndexBase()

Base of this multipack index

If this midx is part of a chain, this is its parent

Specified by:

getMultipackIndexBase in class DfsPackFileMidx

Returns:

the base of this multipack index

findIdxPosition

public int findIdxPosition(DfsReader ctx,
 AnyObjectId id)
                    throws IOException

Throws:

IOException

hasObject

public boolean hasObject(DfsReader ctx,
 AnyObjectId id)
                  throws IOException

Description copied from class: DfsPackFile

Check if an object is stored within this pack.

Overrides:

hasObject in class DfsPackFile

Parameters:

ctx - reader context to support reading from the backing store if the index is not already loaded in memory.

id - object to be located.

Returns:

true if the object exists in this pack; false if it does not.

Throws:

IOException - the pack index is not available, or is corrupt.

getLocalObjects

public List<ObjectToPack> getLocalObjects(DfsReader ctx)
                                   throws IOException

Throws:

IOException