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

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

All Implemented Interfaces:

OptimizerRule

public class RuleCalculateCost
extends java.lang.Object
implements OptimizerRule

Constructor Summary

RuleCalculateCost()

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

RuleCalculateCost

public RuleCalculateCost()

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

See Also:

OptimizerRule.execute(com.metamatrix.query.optimizer.relational.plantree.PlanNode, com.metamatrix.query.metadata.QueryMetadataInterface, com.metamatrix.query.optimizer.capabilities.CapabilitiesFinder, com.metamatrix.query.optimizer.relational.RuleStack, com.metamatrix.query.analysis.AnalysisRecord, com.metamatrix.query.util.CommandContext)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

See Also:

Object.toString()