net.cnri.repository.search

Class BooleanClause

java.lang.Object

net.cnri.repository.search.BooleanClause

public class BooleanClause
extends java.lang.Object

A Boolean clause in a BooleanQuery. Modeled on the Lucene style of Boolean query. Comprises a subquery and an occurence marker, which is either MUST, SHOULD, or MUST_NOT.

A BooleanQuery will match an object if and only if:

• it matches every MUST subquery;
• it matches at least one SHOULD subquery (or there is no such subquery); and
• it matches no MUST_NOT subquery.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	BooleanClause.Occur Enumerated type of occurence markers.

Constructor Summary

Constructors

Constructor and Description
BooleanClause(Query query, BooleanClause.Occur occur) Constructs an instance.

Method Summary

Methods

Modifier and Type	Method and Description
BooleanClause.Occur	getOccur()
Query	getQuery()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

BooleanClause

public BooleanClause(Query query,
             BooleanClause.Occur occur)

Constructs an instance.

Parameters:

query - the subquery

occur - the occurence marker

Method Detail

getQuery

public Query getQuery()

Returns:

the subquery

getOccur

public BooleanClause.Occur getOccur()

Returns:

the occurence marker

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object