org.apache.lucene.search.intervals

Class IntervalQuery

java.lang.Object

org.apache.lucene.search.Query

org.apache.lucene.search.intervals.IntervalQuery

public final class IntervalQuery
extends Query

A query that retrieves documents containing intervals returned from an IntervalsSource Static constructor functions for various different sources can be found in the Intervals class

Constructor Summary

Constructors

Constructor and Description
IntervalQuery(java.lang.String field, IntervalsSource intervalsSource) Create a new IntervalQuery

Method Summary

Modifier and Type	Method and Description
Weight	createWeight(IndexSearcher searcher, boolean needsScores, float boost) Expert: Constructs an appropriate Weight implementation for this query.
boolean	equals(java.lang.Object o) Override and implement query instance equivalence properly in a subclass.
java.lang.String	getField()
int	hashCode() Override and implement query hash code properly in a subclass.
java.lang.String	toString(java.lang.String field) Prints a query to a string, with field assumed to be the default field and omitted.

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

classHash, rewrite, sameClassAs, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

IntervalQuery

public IntervalQuery(java.lang.String field,
                     IntervalsSource intervalsSource)

Create a new IntervalQuery

Parameters:

field - the field to query

intervalsSource - an IntervalsSource to retrieve intervals from

Method Detail

getField

public java.lang.String getField()

toString

public java.lang.String toString(java.lang.String field)

Description copied from class: Query

Prints a query to a string, with field assumed to be the default field and omitted.

Specified by:

toString in class Query

createWeight

public Weight createWeight(IndexSearcher searcher,
                           boolean needsScores,
                           float boost)
                    throws java.io.IOException

Description copied from class: Query

Expert: Constructs an appropriate Weight implementation for this query.

Only implemented by primitive queries, which re-write to themselves.

Overrides:

createWeight in class Query

needsScores - True if document scores (Scorer.score()) are needed.

boost - The boost that is propagated by the parent queries.

Throws:

java.io.IOException

equals

public boolean equals(java.lang.Object o)

Description copied from class: Query

Override and implement query instance equivalence properly in a subclass. This is required so that QueryCache works properly. Typically a query will be equal to another only if it's an instance of the same class and its document-filtering properties are identical that other instance. Utility methods are provided for certain repetitive code.

Specified by:

equals in class Query

See Also:

Query.sameClassAs(Object), Query.classHash()

hashCode

public int hashCode()

Description copied from class: Query

Override and implement query hash code properly in a subclass. This is required so that QueryCache works properly.

Specified by:

hashCode in class Query

See Also:

Query.equals(Object)