org.hibernate.search.filter
Class FilterOptimizationHelper
java.lang.Object
org.hibernate.search.filter.FilterOptimizationHelper
public class FilterOptimizationHelper
- extends Object
Helper class to apply some common optimizations when
several Filters are applied.
- Author:
- Sanne Grinovero
Method Summary |
static List<org.apache.lucene.search.DocIdSet> |
mergeByBitAnds(List<org.apache.lucene.search.DocIdSet> docIdSets)
Returns a new list of DocIdSet, applying binary AND
on all DocIdSet implemented by using BitSet or OpenBitSet. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
FilterOptimizationHelper
public FilterOptimizationHelper()
mergeByBitAnds
public static List<org.apache.lucene.search.DocIdSet> mergeByBitAnds(List<org.apache.lucene.search.DocIdSet> docIdSets)
- Returns a new list of DocIdSet, applying binary AND
on all DocIdSet implemented by using BitSet or OpenBitSet.
- Parameters:
docIdSets
-
- Returns:
- the same list if not change was done
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