Package org.apache.lucene.monitor

Class QueryDecomposer

java.lang.Object

org.apache.lucene.monitor.QueryDecomposer

public class QueryDecomposer
extends 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	Description
QueryDecomposer()

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Details

QueryDecomposer

public QueryDecomposer()

Method Details

decompose

public 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 Set<Query> decomposeBoostQuery(BoostQuery q)

decomposeBoolean

public Set<Query> decomposeBoolean(BooleanQuery q)

Decompose a BooleanQuery

Parameters:

q - the boolean query

Returns:

a collection of subqueries