How to use

AccumulatedSourceExpressionGraph

in

cascading.flow.tez.planner.rule.expressiongraph

public AccumulatedSourceExpressionGraph()
 {
 super( SearchOrder.ReverseDepth );
 this.arc(
  new BoundariesElementExpression( ElementCapture.Secondary ),
  PathScopeExpression.ALL_BLOCKING,
  new FlowElementExpression( ElementCapture.Primary, HashJoin.class )
 );
 }
}

public AccumulatedPostNodeAnnotator()
 {
 super(
  PlanPhase.PostNodes,
  new RuleExpression(
   new NoGroupJoinMergeBoundaryTapExpressionGraph(),
   new AccumulatedSourceExpressionGraph()
  ),
  // not marked accumulated unless all paths are blocking
  new ElementAnnotation( ElementCapture.Secondary, StreamMode.Accumulated )
 );
 }
}

public AccumulatedPostNodeAnnotator()
 {
 super(
  PlanPhase.PostNodes,
  new RuleExpression(
   new NoGroupJoinMergeBoundaryTapExpressionGraph(),
   new AccumulatedSourceExpressionGraph()
  ),
  // not marked accumulated unless all paths are blocking
  new ElementAnnotation( ElementCapture.Secondary, StreamMode.Accumulated )
 );
 }
}

public AccumulatedSourceExpressionGraph()
 {
 super( SearchOrder.ReverseDepth );
 this.arc(
  new BoundariesElementExpression( ElementCapture.Secondary ),
  PathScopeExpression.ALL_BLOCKING,
  new FlowElementExpression( ElementCapture.Primary, HashJoin.class )
 );
 }
}