org.eclipse.jgit.internal.storage.dfs

Enum DfsObjDatabase.PackSource

java.lang.Object

java.lang.Enum<DfsObjDatabase.PackSource>

org.eclipse.jgit.internal.storage.dfs.DfsObjDatabase.PackSource

All Implemented Interfaces:

Serializable, Comparable<DfsObjDatabase.PackSource>

Enclosing class:

DfsObjDatabase

public static enum DfsObjDatabase.PackSource
extends Enum<DfsObjDatabase.PackSource>

Sources for a pack file.

Note: When sorting packs by source, do not use the default comparator based on Enum.compareTo(E). Prefer DEFAULT_COMPARATOR or your own DfsObjDatabase.PackSource.ComparatorBuilder.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DfsObjDatabase.PackSource.ComparatorBuilder Builder for describing DfsObjDatabase.PackSource ordering where some values are explicitly considered equal to others.

Enum Constant Summary

Enum Constants

Enum Constant and Description
COMPACT The pack was created by compacting multiple packs together.
GC Pack was created by Git garbage collection by this implementation.
GC_REST Created from non-heads by DfsGarbageCollector.
GC_TXN RefTreeGraph pack was created by Git garbage collection.
INSERT The pack is created by ObjectInserter due to local activity.
RECEIVE The pack is created by PackParser due to a network event.
UNREACHABLE_GARBAGE Pack was created by Git garbage collection.

Field Summary

Fields

Modifier and Type	Field and Description
static Comparator<DfsObjDatabase.PackSource>	DEFAULT_COMPARATOR Default comparator for sources.

Method Summary

Modifier and Type	Method and Description
static DfsObjDatabase.PackSource	valueOf(String name) Returns the enum constant of this type with the specified name.
static DfsObjDatabase.PackSource[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

INSERT

public static final DfsObjDatabase.PackSource INSERT

The pack is created by ObjectInserter due to local activity.

RECEIVE

public static final DfsObjDatabase.PackSource RECEIVE

The pack is created by PackParser due to a network event.

A received pack can be from either a push into the repository, or a fetch into the repository, the direction doesn't matter. A received pack was built by the remote Git implementation and may not match the storage layout preferred by this version. Received packs are likely to be either compacted or garbage collected in the future.

COMPACT

public static final DfsObjDatabase.PackSource COMPACT

The pack was created by compacting multiple packs together.

Packs created by compacting multiple packs together aren't nearly as efficient as a fully garbage collected repository, but may save disk space by reducing redundant copies of base objects.

See Also:

DfsPackCompactor

GC

public static final DfsObjDatabase.PackSource GC

Pack was created by Git garbage collection by this implementation.

This source is only used by the DfsGarbageCollector when it builds a pack file by traversing the object graph and copying all reachable objects into a new pack stream.

See Also:

DfsGarbageCollector

GC_REST

public static final DfsObjDatabase.PackSource GC_REST

Created from non-heads by DfsGarbageCollector.

GC_TXN

public static final DfsObjDatabase.PackSource GC_TXN

RefTreeGraph pack was created by Git garbage collection.

See Also:

DfsGarbageCollector

UNREACHABLE_GARBAGE

public static final DfsObjDatabase.PackSource UNREACHABLE_GARBAGE

Pack was created by Git garbage collection.

This pack contains only unreachable garbage that was found during the last GC pass. It is retained in a new pack until it is safe to prune these objects from the repository.

Field Detail

DEFAULT_COMPARATOR

public static final Comparator<DfsObjDatabase.PackSource> DEFAULT_COMPARATOR

Default comparator for sources.

Sorts generally newer, smaller types such as INSERT and RECEIVE earlier; older, larger types such as GC later; and UNREACHABLE_GARBAGE at the end.

Method Detail

values

public static DfsObjDatabase.PackSource[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (DfsObjDatabase.PackSource c : DfsObjDatabase.PackSource.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static DfsObjDatabase.PackSource valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null