public class ExprNodeEvaluatorHead extends ExprNodeEvaluator
conf, expr, outputOI
Constructor and Description |
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ExprNodeEvaluatorHead(ExprNodeEvaluator referencing) |
Modifier and Type | Method and Description |
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protected Object |
_evaluate(Object row,
int version)
Evaluate value
|
ObjectInspector |
initialize(ObjectInspector rowInspector)
Initialize should be called once and only once.
|
evaluate, evaluate, getChildren, getConf, getExpr, getOutputOI, isDeterministic, isStateful, setConf, toString
public ExprNodeEvaluatorHead(ExprNodeEvaluator referencing)
public ObjectInspector initialize(ObjectInspector rowInspector) throws HiveException
ExprNodeEvaluator
initialize
in class ExprNodeEvaluator
HiveException
protected Object _evaluate(Object row, int version) throws HiveException
ExprNodeEvaluator
_evaluate
in class ExprNodeEvaluator
HiveException
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