com.metamatrix.query.optimizer.relational.rules
Class RulePlanSorts

java.lang.Object
  com.metamatrix.query.optimizer.relational.rules.RulePlanSorts

All Implemented Interfaces:

OptimizerRule

public class RulePlanSorts
extends java.lang.Object
implements OptimizerRule

Attempts to minimize the cost of sorting operations across the plan.

Constructor Summary

RulePlanSorts()

Method Summary

PlanNode	execute(PlanNode plan, QueryMetadataInterface metadata, CapabilitiesFinder capabilitiesFinder, RuleStack rules, AnalysisRecord analysisRecord, CommandContext context)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

RulePlanSorts

public RulePlanSorts()

Method Detail

execute

public PlanNode execute(PlanNode plan,
                        QueryMetadataInterface metadata,
                        CapabilitiesFinder capabilitiesFinder,
                        RuleStack rules,
                        AnalysisRecord analysisRecord,
                        CommandContext context)
                 throws QueryPlannerException,
                        QueryMetadataException,
                        MetaMatrixComponentException

Specified by:

execute in interface OptimizerRule

Throws:

QueryPlannerException

QueryMetadataException

MetaMatrixComponentException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object