Package org.apache.hadoop.hive.ql.lib

Examples of org.apache.hadoop.hive.ql.lib.GraphWalker.startWalking()

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    for (exprNodeDesc node : preds) {
      clonedPreds.add((exprNodeDesc) node.clone());
    }
    startNodes.addAll(clonedPreds);
   
    egw.startWalking(startNodes, null);
   
    // check the root expression for final candidates
    for (exprNodeDesc pred : clonedPreds) {
      extractFinalCandidates(pred, exprContext);
    }
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    GraphWalker ogw = new ColumnPrunerWalker(disp);
  
    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(pGraphContext.getTopOps().values());
    ogw.startWalking(topNodes, null);
    return pGraphContext;
  }
 
  /**
   * Walks the op tree in post order fashion (skips selects with file sink or script op children)
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    List<Node> startNodes = new ArrayList<Node>();
    startNodes.add(pred);

    HashMap<Node, Object> outputMap = new HashMap<Node, Object>();
    egw.startWalking(startNodes, outputMap);

    // Return the wrapper of the root node
    return (NodeInfoWrapper) outputMap.get(pred);
  }
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    GraphWalker ogw = new DefaultGraphWalker(disp);

    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(pctx.getTopOps().values());
    ogw.startWalking(topNodes, null);
    pctx.setHasNonPartCols(opWalkerCtx.getHasNonPartCols());

    return pctx;
  }
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    GraphWalker ogw = new PreOrderWalker(disp);

    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(pctx.getTopOps().values());
    ogw.startWalking(topNodes, null);

    // Transfer the index from the lineage context to the session state.
    if (SessionState.get() != null) {
      SessionState.get().getLineageState().setIndex(lCtx.getIndex());
    }
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    List<Node> startNodes = new ArrayList<Node>();
    startNodes.add(expr);

    HashMap<Node, Object> outputMap = new HashMap<Node, Object>();
    egw.startWalking(startNodes, outputMap);
    return (Dependency)outputMap.get(expr);
  }
}
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        listMapJoinOpsNoRed, pGraphContext));

    GraphWalker ogw = new GenMapRedWalker(disp);
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(listMapJoinOps);
    ogw.startWalking(topNodes, null);

    pGraphContext.setListMapJoinOpsNoReducer(listMapJoinOpsNoRed);
    return pGraphContext;
  }
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    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.add(expr);
    HashMap<Node, Object> nodeOutputs = new HashMap<Node, Object>();
    ogw.startWalking(topNodes, nodeOutputs);

    return nodeOutputs;
  }

  /**
 
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    GraphWalker ogw = new DefaultGraphWalker(disp);

    // Create a list of topop nodes
    ArrayList<Node> topNodes = new ArrayList<Node>();
    topNodes.addAll(pctx.getTopOps().values());
    ogw.startWalking(topNodes, null);

    return pctx;
  }

  private NodeProcessor getBucketMapjoinRejectProc(ParseContext pctx) {
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    GraphWalker ogw = new DefaultGraphWalker(disp);

    // Create a list of topop nodes
    List<Node> topNodes = new ArrayList<Node>();
    topNodes.add(topOp);
    ogw.startWalking(topNodes, null);
  }

/**
  * Default procedure for {@link DefaultRuleDispatcher}.
  * @return
 
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