org.apache.hadoop.hive.ql.optimizer.ppr
Class ExprProcFactory.GenericFuncExprProcessor

java.lang.Object
  extended by org.apache.hadoop.hive.ql.optimizer.ppr.ExprProcFactory.GenericFuncExprProcessor
All Implemented Interfaces:
NodeProcessor
Enclosing class:
ExprProcFactory

public static class ExprProcFactory.GenericFuncExprProcessor
extends Object
implements NodeProcessor

If all children are candidates and refer only to one table alias then this expr is a candidate else it is not a candidate but its children could be final candidates


Constructor Summary
ExprProcFactory.GenericFuncExprProcessor()
           
 
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
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

ExprProcFactory.GenericFuncExprProcessor

public ExprProcFactory.GenericFuncExprProcessor()
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


Copyright © 2009 The Apache Software Foundation