Package org.teiid.query.optimizer.relational.rules

Class RuleRaiseNull

java.lang.Object

org.teiid.query.optimizer.relational.rules.RuleRaiseNull

All Implemented Interfaces:

OptimizerRule

public final class RuleRaiseNull
extends Object
implements OptimizerRule

Will attempt to raise null nodes to their highest points

Constructor Summary

Constructors

Constructor	Description
RuleRaiseNull()

Method Summary

Modifier and Type	Method	Description
PlanNode	execute(PlanNode plan, QueryMetadataInterface metadata, CapabilitiesFinder capFinder, RuleStack rules, AnalysisRecord analysisRecord, CommandContext context)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

RuleRaiseNull

public RuleRaiseNull()

Method Detail

execute

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

Specified by:

execute in interface OptimizerRule

Throws:

QueryPlannerException

QueryMetadataException

TeiidComponentException

toString

public String toString()

Overrides:

toString in class Object