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java.lang.Objectorg.apache.hadoop.hive.ql.exec.ExprNodeEvaluator
public abstract class ExprNodeEvaluator
ExprNodeEvaluator.
Constructor Summary | |
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ExprNodeEvaluator()
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Method Summary | |
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abstract Object |
evaluate(Object row)
Evaluate the expression given the row. |
abstract ObjectInspector |
initialize(ObjectInspector rowInspector)
Initialize should be called once and only once. |
boolean |
isDeterministic()
Return whether this node (and all children nodes) are deterministic. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ExprNodeEvaluator()
Method Detail |
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public abstract ObjectInspector initialize(ObjectInspector rowInspector) throws HiveException
HiveException
public abstract Object evaluate(Object row) throws HiveException
HiveException
public boolean isDeterministic()
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