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From "Lukas Eder (JIRA)" <j...@apache.org>
Subject [jira] [Created] (JCR-3555) Add a static utility to transform JCR Iterators into Iterables
Date Tue, 02 Apr 2013 10:13:15 GMT
Lukas Eder created JCR-3555:
-------------------------------

             Summary: Add a static utility to transform JCR Iterators into Iterables
                 Key: JCR-3555
                 URL: https://issues.apache.org/jira/browse/JCR-3555
             Project: Jackrabbit Content Repository
          Issue Type: Improvement
          Components: jackrabbit-jcr-commons
    Affects Versions: 2.6
            Reporter: Lukas Eder
            Priority: Minor
         Attachments: Iterators.java.patch

I have stumbled upon the utility classes in the org.apache.jackrabbit.commons.iterator package.
They're quite useful in principle, but not applied thoroughly. E.g. there are missing wrapper
types for at least these JCR Iterators:

- AccessControlPolicyIterator
- EventIterator
- EventListenerIterator
- NodeTypeIterator
- VersionIterator

Instead of adding more classes, it might be useful to create static methods for the job. Using
static methods from a single class (with static imports) is a bit more convenient than looking
up and creating the wrapper types using "new WrapperType(...)"

An example:

org.apache.jackrabbit.commons.iterator.Iterators.iterable

// And then:
for (Node n : iterable(parent.getNodes())) {
  // Do stuff with n
}

Please find attached a .patch file containing an implementation suggestion.

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