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

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

All Implemented Interfaces:

OptimizerRule

public class RulePushAggregates
extends java.lang.Object
implements OptimizerRule

Since:

4.2

Constructor Summary

RulePushAggregates()

Method Summary

void	addView(PlanNode root, PlanNode unionSource, boolean pushdown, java.util.List<SingleElementSymbol> groupingExpressions, java.util.Set<AggregateSymbol> aggregates, java.util.List<ElementSymbol> virtualElements, QueryMetadataInterface metadata, CapabilitiesFinder capFinder)
PlanNode	execute(PlanNode plan, QueryMetadataInterface metadata, CapabilitiesFinder capFinder, 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

RulePushAggregates

public RulePushAggregates()

Method Detail

execute

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

Specified by:

execute in interface OptimizerRule

Throws:

QueryPlannerException

QueryMetadataException

MetaMatrixComponentException

Since:

4.2

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, AnalysisRecord, CommandContext)

addView

public void addView(PlanNode root,
                    PlanNode unionSource,
                    boolean pushdown,
                    java.util.List<SingleElementSymbol> groupingExpressions,
                    java.util.Set<AggregateSymbol> aggregates,
                    java.util.List<ElementSymbol> virtualElements,
                    QueryMetadataInterface metadata,
                    CapabilitiesFinder capFinder)
             throws MetaMatrixComponentException,
                    QueryPlannerException,
                    QueryResolverException

Throws:

MetaMatrixComponentException

QueryPlannerException

QueryResolverException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Since:

4.2

See Also:

Object.toString()