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ContentDiskDriver rework. git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@29451 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
62 lines
1.8 KiB
Java
62 lines
1.8 KiB
Java
package org.alfresco.filesys.alfresco;
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/**
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* Cache for alfresco "save shuffles" which are used by some applications
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* to compensate for a most computer filesystem being non atomic.
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*
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* <p>
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* Overlays an Alfresco repository with temporary files being created and
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* soft deleted from folders that are likely to have save shuffles going on.
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* <p>
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* Implementations must be thread safe
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*/
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public interface ShuffleCache
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{
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/**
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* Add a new temporary file to the "shuffle cache". Content is not persisted
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* in the alfresco repo until either a rename occurs or after a time delay.
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*
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* @return content writer?
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*/
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public void createTemporaryFile(String path);
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/**
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* Soft delete a file. The file may be re-instated later or the delete made
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* permenant after a time delay.
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*/
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public void softDelete(String path);
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/**
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* Takes the contents of a temporary file and applies it to the new path.
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* <p>
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* If the new path has been soft deleted then the soft delete is removed.
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* <p>
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* After the contents of the temporary file have been written the it may may be made
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* available for garbage collection.
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*
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* @param oldPath the location of the temporaryFile
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* @param newPath the location of the new file.
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*/
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public void renameTemporaryFile(String oldPath, String newPath);
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/**
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* Does the specified directory contain a shuffled temporary file
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* @param dir
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* @return
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*/
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boolean isShuffleDirectory(String dir);
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/**
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* Has the path been "soft deleted"
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*/
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boolean isDeleted(String path);
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/**
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* Has the path been "soft created"
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* @param path
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* @return
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*/
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boolean isCreated(String path);
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}
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