org.apache.lucene.monitor

Class QueryDecomposer

java.lang.Object

org.apache.lucene.monitor.QueryDecomposer

public class QueryDecomposer
extends java.lang.Object

Split a disjunction query into its consituent parts, so that they can be indexed and run separately in the Monitor.

Constructor Summary

Constructors

Constructor and Description
QueryDecomposer()

Method Summary

Modifier and Type	Method and Description
java.util.Set<Query>	decompose(Query q) Split a query up into individual parts that can be indexed and run separately
java.util.Set<Query>	decomposeBoolean(BooleanQuery q) Decompose a BooleanQuery
java.util.Set<Query>	decomposeBoostQuery(BoostQuery q)

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryDecomposer

public QueryDecomposer()

Method Detail

decompose

public java.util.Set<Query> decompose(Query q)

Split a query up into individual parts that can be indexed and run separately

Parameters:

q - the query

Returns:

a collection of subqueries

decomposeBoostQuery

public java.util.Set<Query> decomposeBoostQuery(BoostQuery q)

decomposeBoolean

public java.util.Set<Query> decomposeBoolean(BooleanQuery q)

Decompose a BooleanQuery

Parameters:

q - the boolean query

Returns:

a collection of subqueries