gate.creole.annic.apache.lucene.search
Class Filter

java.lang.Object
  gate.creole.annic.apache.lucene.search.Filter

All Implemented Interfaces:

Serializable

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

Constructor Summary

Filter()

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.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Filter

public Filter()

Method Detail

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.

Throws:

IOException