cascading.flow.hadoop.planner.rule.transformer

Class ReplaceAccumulateTapWithDistCacheTransformer

java.lang.Object

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

cascading.flow.planner.rule.RuleTransformer

cascading.flow.planner.rule.transformer.RuleReplaceFactoryBasedTransformer

cascading.flow.hadoop.planner.rule.transformer.ReplaceAccumulateTapWithDistCacheTransformer

All Implemented Interfaces:

cascading.flow.planner.rule.Rule

public class ReplaceAccumulateTapWithDistCacheTransformer
extends cascading.flow.planner.rule.transformer.RuleReplaceFactoryBasedTransformer

The ReplaceAccumulateTapWithDistCacheTransformer will decorate all temp or checkpoint taps on the accumulated side of a HashJoin with a cascading.tap.hadoop.DistCacheTap instance that wraps the original Tap instance.

Field Summary

Fields inherited from class cascading.flow.planner.rule.RuleTransformer

contractedTransformer, graphTransformer, ruleExpression, subGraphTransformer

Constructor Summary

Constructors

Constructor and Description
ReplaceAccumulateTapWithDistCacheTransformer()

Method Summary

Methods inherited from class cascading.flow.planner.rule.RuleTransformer

getRuleName, getRulePhase, performTransform, toString, transform

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

Constructor Detail

ReplaceAccumulateTapWithDistCacheTransformer

public ReplaceAccumulateTapWithDistCacheTransformer()