org.apache.hadoop.hive.ql.ppd

Class ExprWalkerProcFactory.GenericFuncExprProcessor

java.lang.Object

org.apache.hadoop.hive.ql.ppd.ExprWalkerProcFactory.GenericFuncExprProcessor

All Implemented Interfaces:

NodeProcessor

Enclosing class:

ExprWalkerProcFactory

public static class ExprWalkerProcFactory.GenericFuncExprProcessor
extends java.lang.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

Constructors

Constructor and Description
GenericFuncExprProcessor()

Method Summary

Modifier and Type	Method and Description
java.lang.Object	process(Node nd, java.util.Stack<Node> stack, NodeProcessorCtx procCtx, java.lang.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

GenericFuncExprProcessor

public GenericFuncExprProcessor()

Method Detail

process

public java.lang.Object process(Node nd,
                                java.util.Stack<Node> stack,
                                NodeProcessorCtx procCtx,
                                java.lang.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