com.metamatrix.query.optimizer.relational.rules
Class RuleChooseDependent

java.lang.Object
  com.metamatrix.query.optimizer.relational.rules.RuleChooseDependent

All Implemented Interfaces:

OptimizerRule

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

Finds nodes that can be turned into dependent joins

Field Summary

static int

DEFAULT_INDEPENDENT_CARDINALITY

Constructor Summary

RuleChooseDependent()

Method Summary

PlanNode	execute(PlanNode plan, QueryMetadataInterface metadata, CapabilitiesFinder capFinder, RuleStack rules, AnalysisRecord analysisRecord, CommandContext context)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_INDEPENDENT_CARDINALITY

public static final int DEFAULT_INDEPENDENT_CARDINALITY

See Also:

Constant Field Values

Constructor Detail

RuleChooseDependent

public RuleChooseDependent()

Method Detail

execute

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

Specified by:

execute in interface OptimizerRule

Throws:

QueryPlannerException

QueryMetadataException

MetaMatrixComponentException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object