org.modeshape.jcr.query.lucene
Class IdsQuery

java.lang.Object
  org.apache.lucene.search.Query
      org.modeshape.jcr.query.lucene.IdsQuery

All Implemented Interfaces:

Serializable, Cloneable

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

A Lucene Query implementation that is used to score positively those documents that have a ID in the supplied set. This works for large sets of IDs; in smaller numbers, it may be more efficient to create a boolean query that checks for each of the IDs.

See Also:

Serialized Form

Nested Class Summary

protected class	IdsQuery.IdScorer A scorer for the Path query.
protected class	IdsQuery.IdSetWeight Calculates query weights and builds query scores for our NOT queries.

Field Summary

protected String	fieldName
protected org.apache.lucene.document.FieldSelector	fieldSelector
protected Set<String>	uuids The operand that is being negated by this query.

Constructor Summary

IdsQuery(String fieldName, Set<String> ids)
Construct a Query implementation that scores nodes according to the supplied comparator.

Method Summary

org.apache.lucene.search.Weight	createWeight(org.apache.lucene.search.Searcher searcher)
protected boolean	includeDocument(org.apache.lucene.index.IndexReader reader, int docId)
String	toString(String field)

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

clone, combine, equals, extractTerms, getBoost, getSimilarity, hashCode, mergeBooleanQueries, rewrite, setBoost, toString, weight

Methods inherited from class java.lang.Object

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

Field Detail

uuids

protected final Set<String> uuids

The operand that is being negated by this query.

fieldSelector

protected final org.apache.lucene.document.FieldSelector fieldSelector

fieldName

protected final String fieldName

Constructor Detail

IdsQuery

public IdsQuery(String fieldName,
                Set<String> ids)

Construct a Query implementation that scores nodes according to the supplied comparator.

Parameters:

fieldName - the name of the document field containing the value; may not be null

ids - the set of ID values; may not be null

Method Detail

includeDocument

protected boolean includeDocument(org.apache.lucene.index.IndexReader reader,
                                  int docId)
                           throws IOException

Throws:

IOException

createWeight

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

Overrides:

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

See Also:

Query.createWeight(org.apache.lucene.search.Searcher)

toString

public String toString(String field)

Specified by:

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

See Also:

Query.toString(java.lang.String)