SPI: Introduce NodeInfo.getChildInfos()
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                 Key: JCR-1405
                 URL: https://issues.apache.org/jira/browse/JCR-1405
             Project: Jackrabbit
          Issue Type: New Feature
          Components: jackrabbit-spi
            Reporter: angela


Improvement suggested by Marcel:

ChildInfo is basically a stripped down NodeInfo. With little effort it would 
even be possible to have NodeInfo extends ChildInfo. Not sure how useful that 
is, but since we don't have that inheritance in code and at the same time 
nearly a 100% overlap it makes me suspicious.

Here's another idea:

introduce a method ChildInfo[] NodeInfo.getChildInfos(). The method either 
returns:

- all child infos, which also gives the correct number of child nodes. this may 
also mean that an empty array is returned to indicate there are no child nodes.
- null, to indicate that there are *lots* of child nodes and the method 
RepositoryService.getChildInfos() with the iterator should be used. 




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