org.apache.hadoop.hive.ql.optimizer.lineage
Class OpProcFactory.DefaultLineage

java.lang.Object
  org.apache.hadoop.hive.ql.optimizer.lineage.OpProcFactory.DefaultLineage

All Implemented Interfaces:

NodeProcessor

Direct Known Subclasses:

OpProcFactory.GroupByLineage, OpProcFactory.JoinLineage, OpProcFactory.LateralViewJoinLineage, OpProcFactory.SelectLineage, OpProcFactory.TableScanLineage, OpProcFactory.TransformLineage, OpProcFactory.UnionLineage

Enclosing class:

OpProcFactory

public static class OpProcFactory.DefaultLineage
extends Object
implements NodeProcessor

Default processor. This basically passes the input dependencies as such to the output dependencies.

Constructor Summary

OpProcFactory.DefaultLineage()

Method Summary

Object

process(Node nd, Stack<Node> stack, NodeProcessorCtx procCtx, Object... nodeOutputs) Generic process for all ops that don't have specific implementations.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

OpProcFactory.DefaultLineage

public OpProcFactory.DefaultLineage()

Method Detail

process

public Object process(Node nd,
                      Stack<Node> stack,
                      NodeProcessorCtx procCtx,
                      Object... nodeOutputs)
               throws SemanticException

Description copied from interface: NodeProcessor

Generic process for all ops that don't have specific implementations.

Specified by:

process in interface NodeProcessor

Parameters:

nd - operator to process

procCtx - operator processor context

nodeOutputs - A variable argument list of outputs from other nodes in the walk

Returns:

Object to be returned by the process call

Throws:

SemanticException