org.modeshape.jcr.query.lucene.basic
Class ExistsTupleCollector

java.lang.Object
  org.apache.lucene.search.Collector
      org.modeshape.jcr.query.lucene.LuceneQueryEngine.TupleCollector
          org.modeshape.jcr.query.lucene.basic.ExistsTupleCollector

public class ExistsTupleCollector
extends LuceneQueryEngine.TupleCollector

A special TupleCollector implementation that will terminate when it comes across a second document with a non-zero score.

Nested Class Summary

static class

ExistsTupleCollector.CompletedException Thrown when elapsed search time exceeds allowed search time.

Constructor Summary

ExistsTupleCollector(LuceneQueryEngine.TupleCollector collector)
Create a ExistsTupleCollector wrapper over another Collector, where the wrapper stops after the first non-zero scored document.

Method Summary

boolean	acceptsDocsOutOfOrder()
float	doCollect(int doc)
List<Object[]>	getTuples() Get the tuples.
void	setNextReader(org.apache.lucene.index.IndexReader reader, int docBase)
void	setScorer(org.apache.lucene.search.Scorer scorer)

Methods inherited from class org.modeshape.jcr.query.lucene.LuceneQueryEngine.TupleCollector

collect

Methods inherited from class java.lang.Object

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

Constructor Detail

ExistsTupleCollector

public ExistsTupleCollector(LuceneQueryEngine.TupleCollector collector)

Create a ExistsTupleCollector wrapper over another Collector, where the wrapper stops after the first non-zero scored document.

Parameters:

collector - the wrapped Collector

Method Detail

doCollect

public float doCollect(int doc)
                throws IOException

Specified by:

doCollect in class LuceneQueryEngine.TupleCollector

Throws:

IOException

getTuples

public List<Object[]> getTuples()

Description copied from class: LuceneQueryEngine.TupleCollector

Get the tuples.

Specified by:

getTuples in class LuceneQueryEngine.TupleCollector

Returns:

the tuples; never null

setScorer

public void setScorer(org.apache.lucene.search.Scorer scorer)
               throws IOException

Specified by:

setScorer in class org.apache.lucene.search.Collector

Throws:

IOException

setNextReader

public void setNextReader(org.apache.lucene.index.IndexReader reader,
                          int docBase)
                   throws IOException

Specified by:

setNextReader in class org.apache.lucene.search.Collector

Throws:

IOException

acceptsDocsOutOfOrder

public boolean acceptsDocsOutOfOrder()

Specified by:

acceptsDocsOutOfOrder in class org.apache.lucene.search.Collector