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Don't mention BitSet in DocIdSet.isCacheable() documentation, since CachingWrapperFilter doesn't use BitSets for caching anymore (fix suggested by Paul Elschot).
git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1533598 13f79535-47bb-0310-9956-ffa450edef68
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@ -50,7 +50,7 @@ public abstract class DocIdSet {
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/**
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* This method is a hint for {@link CachingWrapperFilter}, if this <code>DocIdSet</code>
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* should be cached without copying it into a BitSet. The default is to return
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* should be cached without copying it. The default is to return
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* <code>false</code>. If you have an own <code>DocIdSet</code> implementation
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* that does its iteration very effective and fast without doing disk I/O,
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* override this method and return <code>true</code>.
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