org.apache.jackrabbit.core.query.lucene
Class PredicateDerefQuery

java.lang.Object
  org.apache.lucene.search.Query
      org.apache.jackrabbit.core.query.lucene.PredicateDerefQuery

All Implemented Interfaces:

Serializable, Cloneable

public class PredicateDerefQuery
extends org.apache.lucene.search.Query

Implements a Lucene Query which returns the nodes which have a reference property which matches the nodes of the subquery.

See Also:

Serialized Form

Method Summary

protected org.apache.lucene.search.Weight	createWeight(org.apache.lucene.search.Searcher searcher) Creates a Weight instance for this query.
void	extractTerms(Set terms)
org.apache.lucene.search.Query	rewrite(org.apache.lucene.index.IndexReader reader)
String	toString(String field) Returns PredicateDerefQuery(subQuery, referenceNodeProperty, nameTest)

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

clone, combine, getBoost, getSimilarity, mergeBooleanQueries, setBoost, toString, weight

Methods inherited from class java.lang.Object

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

Method Detail

createWeight

protected org.apache.lucene.search.Weight createWeight(org.apache.lucene.search.Searcher searcher)

Creates a Weight instance for this query.

Overrides:

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

Parameters:

searcher - the Searcher instance to use.

Returns:

a DerefWeight.

toString

public String toString(String field)

Returns PredicateDerefQuery(subQuery, referenceNodeProperty, nameTest)

Specified by:

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

Parameters:

field - the name of a field.

Returns:

'DerefQuery'.

extractTerms

public void extractTerms(Set terms)

Overrides:

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

rewrite

public org.apache.lucene.search.Query rewrite(org.apache.lucene.index.IndexReader reader)
                                       throws IOException

Overrides:

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

Throws:

IOException