org.apache.lucene.search

Class Filter

Implemented Interfaces:
Serializable
Known Direct Subclasses:
CachingWrapperFilter, ChainedFilter, DateFilter, QueryFilter, RangeFilter

public abstract class Filter
extends Object
implements Serializable

Abstract base class providing a mechanism to restrict searches to a subset of an index.
See Also:
Serialized Form

Method Summary

abstract BitSet
bits(IndexReader reader)
Returns a BitSet with true for documents which should be permitted in search results, and false for those that should not.

Method Details

bits

public abstract BitSet bits(IndexReader reader)
            throws IOException
Returns a BitSet with true for documents which should be permitted in search results, and false for those that should not.

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