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

java.lang.Object
  org.apache.hadoop.hive.ql.exec.ExprNodeEvaluator
      org.apache.hadoop.hive.ql.exec.ExprNodeEvaluatorRef

public class ExprNodeEvaluatorRef
extends ExprNodeEvaluator

Returns evaluation result of other evaluator

Constructor Summary

ExprNodeEvaluatorRef(ExprNodeEvaluator referencing)

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

ExprNodeEvaluatorRef

public ExprNodeEvaluatorRef(ExprNodeEvaluator referencing)

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

Throws:

HiveException