org.apache.hadoop.hive.ql.exec
Class ExprNodeConstantEvaluator
java.lang.Object
org.apache.hadoop.hive.ql.exec.ExprNodeEvaluator
org.apache.hadoop.hive.ql.exec.ExprNodeConstantEvaluator
public class ExprNodeConstantEvaluator
- extends ExprNodeEvaluator
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
expr
protected exprNodeConstantDesc expr
ExprNodeConstantEvaluator
public ExprNodeConstantEvaluator(exprNodeConstantDesc expr)
evaluate
public void evaluate(Object row,
ObjectInspector rowInspector,
InspectableObject result)
throws HiveException
- Description copied from class:
ExprNodeEvaluator
- Evaluate the expression given the row and rowInspector.
- Specified by:
evaluate
in class ExprNodeEvaluator
result
- result.o and result.oi will be set inside the method.
- Throws:
HiveException
evaluateInspector
public ObjectInspector evaluateInspector(ObjectInspector rowInspector)
throws HiveException
- Description copied from class:
ExprNodeEvaluator
- Metadata evaluation. Return the inspector for the expression, given the rowInspector.
This method must return the same value as result.oi in evaluate(...) call with the same rowInspector.
- Specified by:
evaluateInspector
in class ExprNodeEvaluator
- Throws:
HiveException
Copyright © 2009 The Apache Software Foundation