Patent ID: 7647362
Filing Date: 2010-01-12
Classification: G06F,Y10S

Abstract:
1. A computer-implemented method for saving versions of a file in a manner that the version of the file is identified based on content of the file itself, the method comprising: saving a first version of a file; saving a second version of the file, the second version of the file comprising incremental changes from the first version of the file and the incremental changes comprising a write-request journal entry indexing content of the first version of the file; indexing content of the second version of the file; and using the indexed content of the first version of the file and the second version of the file to identify a version of the file based solely on the content of the version of the file, each of the one or more subsequent requests including an identification of one or more items of content of the version of the file wherein indexing the content of the second version of the file comprises indexing at least a portion of the file as represented by the second version of the file.