org.teiid.query.optimizer.relational.rules
Class RuleMergeCriteria

java.lang.Object
  org.teiid.query.optimizer.relational.rules.RuleMergeCriteria

All Implemented Interfaces:

OptimizerRule

public final class RuleMergeCriteria
extends java.lang.Object
implements OptimizerRule

Nested Class Summary

static class	RuleMergeCriteria.PlannedResult
protected static class	RuleMergeCriteria.ReferenceReplacementVisitor Used to replace correlated references

Constructor Summary

RuleMergeCriteria(IDGenerator idGenerator, CapabilitiesFinder capFinder, AnalysisRecord analysisRecord, CommandContext context, QueryMetadataInterface metadata)

Method Summary

PlanNode	execute(PlanNode plan, QueryMetadataInterface metadata, CapabilitiesFinder capFinder, RuleStack rules, AnalysisRecord analysisRecord, CommandContext context)
RuleMergeCriteria.PlannedResult	findSubquery(Criteria crit)
static boolean	isDistinct(Query query, java.util.List<SingleElementSymbol> expressions, QueryMetadataInterface metadata)
boolean	planQuery(java.util.Collection<GroupSymbol> leftGroups, boolean requireDistinct, RuleMergeCriteria.PlannedResult plannedResult)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

RuleMergeCriteria

public RuleMergeCriteria(IDGenerator idGenerator,
                         CapabilitiesFinder capFinder,
                         AnalysisRecord analysisRecord,
                         CommandContext context,
                         QueryMetadataInterface metadata)

Method Detail

execute

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

Specified by:

execute in interface OptimizerRule

Throws:

QueryPlannerException

TeiidComponentException

See Also:

OptimizerRule#execute(PlanNode, QueryMetadataInterface, RuleStack)

findSubquery

public RuleMergeCriteria.PlannedResult findSubquery(Criteria crit)
                                             throws TeiidComponentException,
                                                    QueryMetadataException

Throws:

TeiidComponentException

QueryMetadataException

planQuery

public boolean planQuery(java.util.Collection<GroupSymbol> leftGroups,
                         boolean requireDistinct,
                         RuleMergeCriteria.PlannedResult plannedResult)
                  throws QueryMetadataException,
                         TeiidComponentException

Throws:

QueryMetadataException

TeiidComponentException

isDistinct

public static boolean isDistinct(Query query,
                                 java.util.List<SingleElementSymbol> expressions,
                                 QueryMetadataInterface metadata)
                          throws QueryMetadataException,
                                 TeiidComponentException

Throws:

QueryMetadataException

TeiidComponentException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object