public class ExprNodeNullEvaluator extends ExprNodeEvaluator<ExprNodeNullDesc>
expr, outputOI
Constructor and Description |
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ExprNodeNullEvaluator(ExprNodeNullDesc expr) |
Modifier and Type | Method and Description |
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protected java.lang.Object |
_evaluate(java.lang.Object row,
int version)
Evaluate value
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ObjectInspector |
initialize(ObjectInspector rowInspector)
Initialize should be called once and only once.
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evaluate, evaluate, getChildren, getExpr, getOutputOI, isDeterministic, isStateful
public ExprNodeNullEvaluator(ExprNodeNullDesc expr)
public ObjectInspector initialize(ObjectInspector rowInspector) throws HiveException
ExprNodeEvaluator
initialize
in class ExprNodeEvaluator<ExprNodeNullDesc>
HiveException
protected java.lang.Object _evaluate(java.lang.Object row, int version) throws HiveException
ExprNodeEvaluator
_evaluate
in class ExprNodeEvaluator<ExprNodeNullDesc>
HiveException
Copyright © 2012 The Apache Software Foundation