Package org.alfresco.filesys.alfresco
Interface ShuffleCache
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- All Known Implementing Classes:
ShuffleCacheImpl
public interface ShuffleCacheCache for alfresco "save shuffles" which are used by some applications to compensate for a most computer filesystem being non atomic.Overlays an Alfresco repository with temporary files being created and soft deleted from folders that are likely to have save shuffles going on.
Implementations must be thread safe
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description voidcreateTemporaryFile(java.lang.String path)Add a new temporary file to the "shuffle cache".booleanisCreated(java.lang.String path)Has the path been "soft created"booleanisDeleted(java.lang.String path)Has the path been "soft deleted"booleanisShuffleDirectory(java.lang.String dir)Does the specified directory contain a shuffled temporary filevoidrenameTemporaryFile(java.lang.String oldPath, java.lang.String newPath)Takes the contents of a temporary file and applies it to the new path.voidsoftDelete(java.lang.String path)Soft delete a file.
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Method Detail
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createTemporaryFile
void createTemporaryFile(java.lang.String path)
Add a new temporary file to the "shuffle cache". Content is not persisted in the alfresco repo until either a rename occurs or after a time delay.
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softDelete
void softDelete(java.lang.String path)
Soft delete a file. The file may be re-instated later or the delete made permenant after a time delay.
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renameTemporaryFile
void renameTemporaryFile(java.lang.String oldPath, java.lang.String newPath)Takes the contents of a temporary file and applies it to the new path.If the new path has been soft deleted then the soft delete is removed.
After the contents of the temporary file have been written the it may may be made available for garbage collection.
- Parameters:
oldPath- the location of the temporaryFilenewPath- the location of the new file.
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isShuffleDirectory
boolean isShuffleDirectory(java.lang.String dir)
Does the specified directory contain a shuffled temporary file- Parameters:
dir- String- Returns:
- boolean
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isDeleted
boolean isDeleted(java.lang.String path)
Has the path been "soft deleted"
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isCreated
boolean isCreated(java.lang.String path)
Has the path been "soft created"- Parameters:
path- String- Returns:
- boolean
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