org.gradle.api.internal.changedetection

Class OutputFilesSnapshotter

java.lang.Object

org.gradle.api.internal.changedetection.OutputFilesSnapshotter

All Implemented Interfaces:

FileSnapshotter

public class OutputFilesSnapshotter
extends Object
implements FileSnapshotter

Takes a snapshot of the output files of a task. 2 parts to the algorithm:

• Collect the unique id for each output file and directory. The unique id is generated when we notice that a file/directory has been created. The id is regenerated when the file/directory is deleted.
• Collect the hash of each output file and each file in each output directory.

Constructor Summary

Constructors

Constructor and Description
OutputFilesSnapshotter(FileSnapshotter snapshotter, IdGenerator<Long> idGenerator, TaskArtifactStateCacheAccess cacheAccess)

Method Summary

Methods

Modifier and Type	Method and Description
FileCollectionSnapshot	emptySnapshot() Creates an empty snapshot, which changes can be later merged into.
FileCollectionSnapshot	snapshot(FileCollection files) Creates a snapshot of the contents of the given collection

Methods inherited from class java.lang.Object

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

Constructor Detail

OutputFilesSnapshotter

public OutputFilesSnapshotter(FileSnapshotter snapshotter,
                      IdGenerator<Long> idGenerator,
                      TaskArtifactStateCacheAccess cacheAccess)

Method Detail

emptySnapshot

public FileCollectionSnapshot emptySnapshot()

Description copied from interface: FileSnapshotter

Creates an empty snapshot, which changes can be later merged into.

Specified by:

emptySnapshot in interface FileSnapshotter

Returns:

The snapshot.

snapshot

public FileCollectionSnapshot snapshot(FileCollection files)

Description copied from interface: FileSnapshotter

Creates a snapshot of the contents of the given collection

Specified by:

snapshot in interface FileSnapshotter

Parameters:

files - The files to snapshot

Returns:

The snapshot.