Utility code for filtering and packaging trees
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                 Key: JCR-1259
                 URL: https://issues.apache.org/jira/browse/JCR-1259
             Project: Jackrabbit
          Issue Type: New Feature
          Components: jackrabbit-jcr-commons
            Reporter: Carsten Ziegeler


The attached zip contains new utility code for filtering and packaging trees in 
the repository.

A tree can be traversed by the provided tree walker. During the traversal 
configurable filters can be applied. The filters have influence on the 
traversal, like skipping nodes or properties.
Included filters test the node name, node type etc. Custom filters are possible 
as well.
A tree walker notifies a tree walker listener (interface) whenever it traverses 
an item.

The second utility code is able to package a whole tree (through a description) 
and export this in some way - the exporter is an interface and could e.g. be an 
exporter serializing the tree into a zip archiv etc.

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