org.apache.jackrabbit.oak.query.plan

Class SelectorExecutionPlan

java.lang.Object

org.apache.jackrabbit.oak.query.plan.SelectorExecutionPlan

All Implemented Interfaces:

ExecutionPlan

public class SelectorExecutionPlan
extends java.lang.Object
implements ExecutionPlan

An execution plan for one selector in a query. The conditions of the given selectors are compiled into a filter, and the execution plan for the selector is to use a certain query index, which will result in an estimated cost to use that index to retrieve nodes for this index.

Constructor Summary

Constructors

Constructor and Description
SelectorExecutionPlan(SelectorImpl selector, QueryIndex index, QueryIndex.IndexPlan plan, double estimatedCost)

Method Summary

Modifier and Type	Method and Description
double	getEstimatedCost()
QueryIndex	getIndex()
QueryIndex.IndexPlan	getIndexPlan()
java.lang.String	getIndexPlanName() Get the index name, or index type (may not always be the exact index name).
SelectorImpl	getSelector()

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectorExecutionPlan

public SelectorExecutionPlan(SelectorImpl selector,
                             QueryIndex index,
                             QueryIndex.IndexPlan plan,
                             double estimatedCost)

Method Detail

getEstimatedCost

public double getEstimatedCost()

Specified by:

getEstimatedCost in interface ExecutionPlan

getSelector

public SelectorImpl getSelector()

getIndex

public QueryIndex getIndex()

getIndexPlan

public QueryIndex.IndexPlan getIndexPlan()

getIndexPlanName

public java.lang.String getIndexPlanName()

Get the index name, or index type (may not always be the exact index name).

Returns:

the name