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

Class RulePlanUnions

java.lang.Object

org.teiid.query.optimizer.relational.rules.RulePlanUnions

All Implemented Interfaces:

OptimizerRule

public class RulePlanUnions
extends Object
implements OptimizerRule

Organizes union branches so that push down is possible. This does not check to actually ensure that push down will happen.

Constructor Summary

Constructors

Constructor	Description
RulePlanUnions()

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

RulePlanUnions

public RulePlanUnions()

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()