org.apache.hadoop.hive.ql.optimizer
Class PrunerOperatorFactory.FilterPruner

java.lang.Object
  org.apache.hadoop.hive.ql.optimizer.PrunerOperatorFactory.FilterPruner

All Implemented Interfaces:

NodeProcessor

Direct Known Subclasses:

LBPartitionProcFactory.LBPRPartitionFilterPruner, LBProcFactory.LBPRFilterPruner, OpProcFactory.FilterPPR

Enclosing class:

PrunerOperatorFactory

public abstract static class PrunerOperatorFactory.FilterPruner
extends Object
implements NodeProcessor

Determines the partition pruner for the filter. This is called only when the filter follows a table scan operator.

Constructor Summary

PrunerOperatorFactory.FilterPruner()

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

PrunerOperatorFactory.FilterPruner

public PrunerOperatorFactory.FilterPruner()

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