org.modeshape.jcr.query.lucene

Class ComparePathQuery

java.lang.Object

org.apache.lucene.search.Query

org.modeshape.jcr.query.lucene.CompareQuery<Path>

org.modeshape.jcr.query.lucene.ComparePathQuery

All Implemented Interfaces:

Serializable, Cloneable

public class ComparePathQuery
extends CompareQuery<Path>

A Lucene Query implementation that is used to apply a Comparison constraint against the Path of nodes. This query implementation works by using the weight and scorer of the wrapped query to score (and return) only those documents that correspond to nodes with Paths that satisfy the constraint.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.modeshape.jcr.query.lucene.CompareQuery

CompareQuery.CompareScorer, CompareQuery.CompareWeight, CompareQuery.Evaluator<ValueType>

Field Summary

Fields

Modifier and Type	Field and Description
protected static CompareQuery.Evaluator<Path>	PATH_IS_GREATER_THAN
protected static CompareQuery.Evaluator<Path>	PATH_IS_GREATER_THAN_OR_EQUAL_TO
protected static CompareQuery.Evaluator<Path>	PATH_IS_LESS_THAN
protected static CompareQuery.Evaluator<Path>	PATH_IS_LESS_THAN_OR_EQUAL_TO

Fields inherited from class org.modeshape.jcr.query.lucene.CompareQuery

constraintValue, evaluator, fieldName, fieldSelector, stringFactory, valueTypeFactory

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ComparePathQuery(String fieldName, Path constraintPath, ValueFactory<Path> pathFactory, ValueFactory<String> stringFactory, CompareQuery.Evaluator<Path> evaluator, CaseOperations.CaseOperation caseOperation) Construct a Query implementation that scores nodes according to the supplied comparator.

Method Summary

Methods

Modifier and Type	Method and Description
Object	clone()
static ComparePathQuery	createQueryForNodesWithPathGreaterThan(Path constraintPath, String fieldName, ValueFactories factories, CaseOperations.CaseOperation caseOperation) Construct a Query implementation that scores documents such that the node represented by the document has a path that is greater than the supplied constraint path.
static ComparePathQuery	createQueryForNodesWithPathGreaterThanOrEqualTo(Path constraintPath, String fieldName, ValueFactories factories, CaseOperations.CaseOperation caseOperation) Construct a Query implementation that scores documents such that the node represented by the document has a path that is greater than or equal to the supplied constraint path.
static ComparePathQuery	createQueryForNodesWithPathLessThan(Path constraintPath, String fieldName, ValueFactories factories, CaseOperations.CaseOperation caseOperation) Construct a Query implementation that scores documents such that the node represented by the document has a path that is less than the supplied constraint path.
static ComparePathQuery	createQueryForNodesWithPathLessThanOrEqualTo(Path constraintPath, String fieldName, ValueFactories factories, CaseOperations.CaseOperation caseOperation) Construct a Query implementation that scores documents such that the node represented by the document has a path that is less than or equal to the supplied constraint path.
protected Path	readFromDocument(org.apache.lucene.index.IndexReader reader, int docId)

Methods inherited from class org.modeshape.jcr.query.lucene.CompareQuery

createWeight, toString

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

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

PATH_IS_LESS_THAN

protected static final CompareQuery.Evaluator<Path> PATH_IS_LESS_THAN

PATH_IS_LESS_THAN_OR_EQUAL_TO

protected static final CompareQuery.Evaluator<Path> PATH_IS_LESS_THAN_OR_EQUAL_TO

PATH_IS_GREATER_THAN

protected static final CompareQuery.Evaluator<Path> PATH_IS_GREATER_THAN

PATH_IS_GREATER_THAN_OR_EQUAL_TO

protected static final CompareQuery.Evaluator<Path> PATH_IS_GREATER_THAN_OR_EQUAL_TO

Constructor Detail

ComparePathQuery

protected ComparePathQuery(String fieldName,
                Path constraintPath,
                ValueFactory<Path> pathFactory,
                ValueFactory<String> stringFactory,
                CompareQuery.Evaluator<Path> evaluator,
                CaseOperations.CaseOperation caseOperation)

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

Parameters:

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

constraintPath - the constraint path; may not be null

pathFactory - the value factory that can be used during the scoring; may not be null

stringFactory - the string factory that can be used during the scoring; may not be null

evaluator - the CompareQuery.Evaluator implementation that returns whether the node path satisfies the constraint; may not be null

caseOperation - the operation that should be performed on the indexed values before the constraint value is being evaluated; may not be null

Method Detail

createQueryForNodesWithPathGreaterThan

public static ComparePathQuery createQueryForNodesWithPathGreaterThan(Path constraintPath,
                                                      String fieldName,
                                                      ValueFactories factories,
                                                      CaseOperations.CaseOperation caseOperation)

Construct a Query implementation that scores documents such that the node represented by the document has a path that is greater than the supplied constraint path.

Parameters:

constraintPath - the constraint path; may not be null

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

factories - the value factories that can be used during the scoring; may not be null

caseOperation - the operation that should be performed on the indexed values before the constraint value is being evaluated; may not be null

Returns:

the path query; never null

createQueryForNodesWithPathGreaterThanOrEqualTo

public static ComparePathQuery createQueryForNodesWithPathGreaterThanOrEqualTo(Path constraintPath,
                                                               String fieldName,
                                                               ValueFactories factories,
                                                               CaseOperations.CaseOperation caseOperation)

Construct a Query implementation that scores documents such that the node represented by the document has a path that is greater than or equal to the supplied constraint path.

Parameters:

constraintPath - the constraint path; may not be null

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

factories - the value factories that can be used during the scoring; may not be null

caseOperation - the operation that should be performed on the indexed values before the constraint value is being evaluated; may not be null

Returns:

the path query; never null

createQueryForNodesWithPathLessThan

public static ComparePathQuery createQueryForNodesWithPathLessThan(Path constraintPath,
                                                   String fieldName,
                                                   ValueFactories factories,
                                                   CaseOperations.CaseOperation caseOperation)

Construct a Query implementation that scores documents such that the node represented by the document has a path that is less than the supplied constraint path.

Parameters:

constraintPath - the constraint path; may not be null

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

factories - the value factories that can be used during the scoring; may not be null

caseOperation - the operation that should be performed on the indexed values before the constraint value is being evaluated; may not be null

Returns:

the path query; never null

createQueryForNodesWithPathLessThanOrEqualTo

public static ComparePathQuery createQueryForNodesWithPathLessThanOrEqualTo(Path constraintPath,
                                                            String fieldName,
                                                            ValueFactories factories,
                                                            CaseOperations.CaseOperation caseOperation)

Construct a Query implementation that scores documents such that the node represented by the document has a path that is less than or equal to the supplied constraint path.

Parameters:

constraintPath - the constraint path; may not be null

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

factories - the value factories that can be used during the scoring; may not be null

caseOperation - the operation that should be performed on the indexed values before the constraint value is being evaluated; may not be null

Returns:

the path query; never null

readFromDocument

protected Path readFromDocument(org.apache.lucene.index.IndexReader reader,
                    int docId)
                         throws IOException

Overrides:

readFromDocument in class CompareQuery<Path>

Throws:

IOException

clone

public Object clone()

Overrides:

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