cascading.flow.planner.rule

Class RuleTransformer

java.lang.Object

cascading.flow.planner.iso.transformer.GraphTransformer<ElementGraph,ElementGraph>

cascading.flow.planner.rule.RuleTransformer

All Implemented Interfaces:

Rule

Direct Known Subclasses:

RuleAnnotationTransformer, RuleContractedTransformer, RuleInsertionTransformer, RuleRemoveBranchTransformer, RuleReplaceTransformer

public class RuleTransformer
extends GraphTransformer<ElementGraph,ElementGraph>
implements Rule

The RuleTransformer class is responsible for transforming an element graph into a new graph.

Field Summary

Fields

Modifier and Type	Field and Description
protected ContractedTransformer	contractedTransformer
protected RecursiveGraphTransformer<ElementGraph>	graphTransformer
protected RuleExpression	ruleExpression
protected SubGraphTransformer	subGraphTransformer

Constructor Summary

Constructors

Constructor and Description
RuleTransformer(PlanPhase phase, RuleExpression ruleExpression)

Method Summary

Methods

Modifier and Type	Method and Description
String	getRuleName()
PlanPhase	getRulePhase()
String	toString()
Transformed<ElementGraph>	transform(PlannerContext plannerContext, ElementGraph rootGraph)

Methods inherited from class cascading.flow.planner.iso.transformer.GraphTransformer

transform

Methods inherited from class java.lang.Object

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

Field Detail

ruleExpression

protected final RuleExpression ruleExpression

contractedTransformer

protected final ContractedTransformer contractedTransformer

subGraphTransformer

protected final SubGraphTransformer subGraphTransformer

graphTransformer

protected RecursiveGraphTransformer<ElementGraph> graphTransformer

Constructor Detail

RuleTransformer

public RuleTransformer(PlanPhase phase,
               RuleExpression ruleExpression)

Method Detail

getRulePhase

public PlanPhase getRulePhase()

Specified by:

getRulePhase in interface Rule

getRuleName

public String getRuleName()

Specified by:

getRuleName in interface Rule

transform

public Transformed<ElementGraph> transform(PlannerContext plannerContext,
                                  ElementGraph rootGraph)

Specified by:

transform in class GraphTransformer<ElementGraph,ElementGraph>

toString

public String toString()

Overrides:

toString in class Object