| AbstractDocument | 
 The Document is the central entity of LogicalDOC. 
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| Bookmark | 
 A bookmark over a document 
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| DigestProcessor | 
 This task takes care of calculating the documents digest 
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| Document | 
 Basic concrete implementation of AbstractDocument 
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| DocumentComparator | 
 Comparators to sort documents with different options 
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| DocumentHistory | 
 Registers an event on folder or document 
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| DocumentLink | 
 Represents a document link. 
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| DocumentListenerManager | 
 A manager for document listeners. 
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| DocumentManagerImpl | 
 Basic Implementation of DocumentManager 
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| DocumentNote | 
 A note over a document 
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| Rating | 
 A rating over a document 
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| Tag | 
 Represents a tag of a specific document 
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| TagCloud | 
 This class is a TagCloud 
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| TagsProcessor | 
 This task generate all data needed by the tag cloud panel and the tags
 drop-down lists. 
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| Version | 
 This class represents versions. 
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