org.apache.hadoop.hive.ql.exec
Class ExprNodeConstantEvaluator

java.lang.Object
  org.apache.hadoop.hive.ql.exec.ExprNodeEvaluator<ExprNodeConstantDesc>
      org.apache.hadoop.hive.ql.exec.ExprNodeConstantEvaluator

public class ExprNodeConstantEvaluator
extends ExprNodeEvaluator<ExprNodeConstantDesc>

ExprNodeConstantEvaluator.

Constructor Summary

ExprNodeConstantEvaluator(ExprNodeConstantDesc expr)

Method Summary

ObjectInspector

initialize(ObjectInspector rowInspector) Initialize should be called once and only once.

Methods inherited from class org.apache.hadoop.hive.ql.exec.ExprNodeEvaluator

evaluate, getChildren, getExpr, getOutputOI, isDeterministic, isStateful

Methods inherited from class java.lang.Object

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

Constructor Detail

ExprNodeConstantEvaluator

public ExprNodeConstantEvaluator(ExprNodeConstantDesc expr)

Method Detail

initialize

public ObjectInspector initialize(ObjectInspector rowInspector)
                           throws HiveException

Description copied from class: ExprNodeEvaluator

Initialize should be called once and only once. Return the ObjectInspector for the return value, given the rowInspector.

Specified by:

initialize in class ExprNodeEvaluator<ExprNodeConstantDesc>

Throws:

HiveException