org.hibernate.search.filter.impl

Class CachingWrapperFilter

java.lang.Object

org.apache.lucene.search.Query

org.apache.lucene.search.Filter

org.hibernate.search.filter.impl.CachingWrapperFilter

All Implemented Interfaces:

Cloneable

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

A slightly different version of Lucene's original CachingWrapperFilter which uses SoftReferences instead of WeakReferences in order to cache the filter BitSet.

Author:

Hardy Ferentschik, Sanne Grinovero

See Also:

CachingWrapperFilter, HSEARCH-174

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_SIZE

Constructor Summary

Constructors

Constructor and Description
CachingWrapperFilter(org.apache.lucene.search.Filter filter)
CachingWrapperFilter(org.apache.lucene.search.Filter filter, int size)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
org.apache.lucene.search.Filter	getCachedFilter()
org.apache.lucene.search.DocIdSet	getDocIdSet(org.apache.lucene.index.LeafReaderContext context, org.apache.lucene.util.Bits acceptDocs)
int	hashCode()
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, getBoost, setBoost, toString

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_SIZE

public static final int DEFAULT_SIZE

See Also:

Constant Field Values

Constructor Detail

CachingWrapperFilter

public CachingWrapperFilter(org.apache.lucene.search.Filter filter)

Parameters:

filter - Filter to cache results of

CachingWrapperFilter

public CachingWrapperFilter(org.apache.lucene.search.Filter filter,
                            int size)

Parameters:

filter - Filter to cache results of

size - soft reference size (gets multiplied by HARD_TO_SOFT_RATIO.

Method Detail

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

getCachedFilter

public org.apache.lucene.search.Filter getCachedFilter()

toString

public String toString(String field)

Specified by:

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

equals

public boolean equals(Object o)

Overrides:

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

hashCode

public int hashCode()

Overrides:

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