Examples of org.apache.hadoop.hive.ql.plan.TezWork.disconnect()

Class org.apache.hadoop.hive.ql.plan.TezWork

Examples of org.apache.hadoop.hive.ql.plan.TezWork.disconnect()

org.apache.hadoop.hive.ql.plan.TezWork.disconnect()
disconnect removes an edge between a and b. Both a and b have to be in the graph. If there is no matching edge no change happens.

      int pos = context.currentMergeJoinOperator.getTagForOperator(parentOp);
      work.setTag(pos);
      tezWork.setVertexType(work, VertexType.MULTI_INPUT_UNINITIALIZED_EDGES);
      for (BaseWork parentWork : tezWork.getParents(work)) {
        TezEdgeProperty edgeProp = tezWork.getEdgeProperty(parentWork, work);
        tezWork.disconnect(parentWork, work);
        tezWork.connect(parentWork, mergeJoinWork, edgeProp);
      }


      for (BaseWork childWork : tezWork.getChildren(work)) {
        TezEdgeProperty edgeProp = tezWork.getEdgeProperty(work, childWork);

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        tezWork.connect(parentWork, mergeJoinWork, edgeProp);
      }


      for (BaseWork childWork : tezWork.getChildren(work)) {
        TezEdgeProperty edgeProp = tezWork.getEdgeProperty(work, childWork);
        tezWork.disconnect(work, childWork);
        tezWork.connect(mergeJoinWork, childWork, edgeProp);
      }
      tezWork.remove(work);
      context.rootToWorkMap.put(root, mergeJoinWork);
      context.childToWorkMap.get(operator).remove(work);

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        work.setTag(mergeJoinOp.getTagForOperator(operator));
        mergeJoinWork.addMergedWork(null, work);
        tezWork.setVertexType(mergeJoinWork, VertexType.MULTI_INPUT_UNINITIALIZED_EDGES);
        for (BaseWork parentWork : tezWork.getParents(work)) {
          TezEdgeProperty edgeProp = tezWork.getEdgeProperty(parentWork, work);
          tezWork.disconnect(parentWork, work);
          tezWork.connect(parentWork, mergeJoinWork, edgeProp);
        }
        work = mergeJoinWork;
      } else {
        // need to add this branch to the key + value info

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    tezWork.setVertexType(mergeWork, VertexType.MULTI_INPUT_UNINITIALIZED_EDGES);


    for (BaseWork grandParentWork : tezWork.getParents(parentWork)) {
      parentWork.setName(grandParentWork.getName());
      TezEdgeProperty edgeProp = tezWork.getEdgeProperty(grandParentWork, parentWork);
      tezWork.disconnect(grandParentWork, parentWork);
      tezWork.connect(grandParentWork, mergeWork, edgeProp);
    }


    for (BaseWork childWork : tezWork.getChildren(parentWork)) {
      TezEdgeProperty edgeProp = tezWork.getEdgeProperty(parentWork, childWork);

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      tezWork.connect(grandParentWork, mergeWork, edgeProp);
    }


    for (BaseWork childWork : tezWork.getChildren(parentWork)) {
      TezEdgeProperty edgeProp = tezWork.getEdgeProperty(parentWork, childWork);
      tezWork.disconnect(parentWork, childWork);
      tezWork.connect(mergeWork, childWork, edgeProp);
    }


    tezWork.remove(parentWork);

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