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

Class RulePushLimit

java.lang.Object

org.teiid.query.optimizer.relational.rules.RulePushLimit

All Implemented Interfaces:

OptimizerRule

public class RulePushLimit
extends Object
implements OptimizerRule

Pushes limit nodes to their lowest points. This rule should only be run once. Should be run after all access nodes have been raised

Constructor Summary

Constructors

Constructor	Description
RulePushLimit()

Method Summary

Modifier and Type	Method	Description
PlanNode	execute(PlanNode plan, QueryMetadataInterface metadata, CapabilitiesFinder capabilitiesFinder, 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

RulePushLimit

public RulePushLimit()

Method Detail

execute

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

Specified by:

execute in interface OptimizerRule

Throws:

QueryPlannerException

QueryMetadataException

TeiidComponentException

See Also:

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

toString

public String toString()

Overrides:

toString in class Object

See Also:

Object.toString()