org.hibernate.search.filter.impl

Class ChainedFilter

java.lang.Object

org.apache.lucene.search.Query

org.apache.lucene.search.Filter

org.hibernate.search.filter.impl.ChainedFilter

All Implemented Interfaces:

Cloneable

public class ChainedFilter
extends org.apache.lucene.search.Filter

A Filter capable of chaining other filters, so that it's possible to apply several filters on a Query.

The resulting filter will only enable result Documents if no filter removed it.

Author:

Emmanuel Bernard, Sanne Grinovero, Hardy Ferentschik

Constructor Summary

Constructors

Constructor and Description
ChainedFilter()

Method Summary

Modifier and Type	Method and Description
void	addFilter(org.apache.lucene.search.Filter filter) Add the specified filter to the chain of filters
org.apache.lucene.search.DocIdSet	getDocIdSet(org.apache.lucene.index.LeafReaderContext context, org.apache.lucene.util.Bits acceptDocs)
boolean	isEmpty()
boolean	removeFilter(org.apache.lucene.search.Filter filter) Returns the specified filter from the current filter chain.
String	toString(String field)

Methods inherited from class org.apache.lucene.search.Filter

rewrite

Methods inherited from class org.apache.lucene.search.Query

clone, createWeight, equals, getBoost, hashCode, setBoost, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ChainedFilter

public ChainedFilter()

Method Detail

addFilter

public void addFilter(org.apache.lucene.search.Filter filter)

Add the specified filter to the chain of filters

Parameters:

filter - the filter to add to the filter chain. Cannot be null.

removeFilter

public boolean removeFilter(org.apache.lucene.search.Filter filter)

Returns the specified filter from the current filter chain.

Parameters:

filter - the filter to remove form the chaim

Returns:

true if this chained filter contained the specified filter, false otherwise.

isEmpty

public boolean isEmpty()

getDocIdSet

public org.apache.lucene.search.DocIdSet getDocIdSet(org.apache.lucene.index.LeafReaderContext context,
                                                     org.apache.lucene.util.Bits acceptDocs)
                                              throws IOException

Specified by:

getDocIdSet in class org.apache.lucene.search.Filter

Throws:

IOException

toString

public String toString(String field)

Specified by:

toString in class org.apache.lucene.search.Query