org.teiid.query.optimizer.relational.rules

Class RuleAccessPatternValidation

java.lang.Object

org.teiid.query.optimizer.relational.rules.RuleAccessPatternValidation

All Implemented Interfaces:

OptimizerRule

public final class RuleAccessPatternValidation
extends Object
implements OptimizerRule

Validates that the access pattern(s) of a source are satisfied. This means that, during planning, exactly the required criteria specified by only one (if any) access pattern has been pushed down to the source (in the atomic query).

Constructor Summary

Constructors

Constructor and Description
RuleAccessPatternValidation()

Method Summary

Modifier and Type	Method and 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

RuleAccessPatternValidation

public RuleAccessPatternValidation()

Method Detail

execute

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

Specified by:

execute in interface OptimizerRule

Throws:

QueryPlannerException - if an access pattern has not been satisfied

toString

public String toString()

Overrides:

toString in class Object