org.apache.lucene.search
Class RangeQuery

java.lang.Object
  org.apache.lucene.search.Query
      org.apache.lucene.search.RangeQuery

All Implemented Interfaces:

Cloneable, Serializable

public class RangeQuery

extends Query

A Query that matches documents within an exclusive range.

Version:

$Id: RangeQuery.java,v 1.12 2004/03/29 22:48:03 cutting Exp $

See Also:

Serialized Form

Constructor Summary

RangeQuery(Term lowerTerm, Term upperTerm, boolean inclusive)
Constructs a query selecting all terms greater than lowerTerm but less than upperTerm.

Method Summary

Query	combine(Query[] queries) Expert: called when re-writing queries under MultiSearcher.
String	getField() Returns the field name for this query
Term	getLowerTerm() Returns the lower term of this range query
Term	getUpperTerm() Returns the upper term of this range query
boolean	isInclusive() Returns true if the range query is inclusive
Query	rewrite(IndexReader reader) FIXME: Describe rewrite method here.
String	toString(String field) Prints a user-readable version of this query.

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

RangeQuery

public RangeQuery(Term lowerTerm,
                  Term upperTerm,
                  boolean inclusive)

Constructs a query selecting all terms greater than lowerTerm but less than upperTerm. There must be at least one term and either term may be null, in which case there is no bound on that side, but if there are two terms, both terms must be for the same field.

Method Detail

rewrite

public Query rewrite(IndexReader reader)
              throws IOException

FIXME: Describe rewrite method here.

Overrides:

rewrite in class Query

Parameters:

reader - an IndexReader value

Returns:

a Query value

Throws:

IOException - if an error occurs

combine

public Query combine(Query[] queries)

Description copied from class: Query

Expert: called when re-writing queries under MultiSearcher.

Only implemented by derived queries, with no Query.createWeight(Searcher) implementatation.

Overrides:

combine in class Query

getField

public String getField()

Returns the field name for this query

getLowerTerm

public Term getLowerTerm()

Returns the lower term of this range query

getUpperTerm

public Term getUpperTerm()

Returns the upper term of this range query

isInclusive

public boolean isInclusive()

Returns true if the range query is inclusive

toString

public String toString(String field)

Prints a user-readable version of this query.

Specified by:

toString in class Query