org.apache.hadoop.hive.ql.exec.vector.expressions

Class VectorUDFMapIndexBaseScalar

java.lang.Object

org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression

org.apache.hadoop.hive.ql.exec.vector.expressions.VectorUDFMapIndexBase

org.apache.hadoop.hive.ql.exec.vector.expressions.VectorUDFMapIndexBaseScalar

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

VectorUDFMapIndexDoubleScalar, VectorUDFMapIndexLongScalar, VectorUDFMapIndexStringScalar

public abstract class VectorUDFMapIndexBaseScalar
extends VectorUDFMapIndexBase

Superclass to support vectorized functions that take a scalar as key of Map and return the value of Map.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression

childExpressions, inputDataTypePhysicalVariations, inputTypeInfos, outputColumnNum, outputDataTypePhysicalVariation, outputTypeInfo

Constructor Summary

Constructors

Constructor and Description
VectorUDFMapIndexBaseScalar()
VectorUDFMapIndexBaseScalar(int mapColumnNum, int outputColumnNum)

Method Summary

Modifier and Type	Method and Description
void	evaluate(org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch batch) This is the primary method to implement expression logic.
int	getMapColumnNum()

Methods inherited from class org.apache.hadoop.hive.ql.exec.vector.expressions.VectorUDFMapIndexBase

compareKey, compareKeyInternal, getMapValueIndex

Methods inherited from class org.apache.hadoop.hive.ql.exec.vector.expressions.VectorExpression

displayArrayOfUtf8ByteArrays, displayUtf8Bytes, doTransientInit, doTransientInit, evaluateChildren, getChildExpressions, getColumnParamString, getDescriptor, getDoubleValueParamString, getInputDataTypePhysicalVariations, getInputTypeInfos, getLongValueParamString, getOutputColumnNum, getOutputColumnVectorType, getOutputDataTypePhysicalVariation, getOutputTypeInfo, getParamTypeString, getTypeName, init, setChildExpressions, setInputDataTypePhysicalVariations, setInputTypeInfos, setOutputDataTypePhysicalVariation, setOutputTypeInfo, supportsCheckedExecution, toString, transientInit, vectorExpressionParameters

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

VectorUDFMapIndexBaseScalar

public VectorUDFMapIndexBaseScalar()

VectorUDFMapIndexBaseScalar

public VectorUDFMapIndexBaseScalar(int mapColumnNum,
                                   int outputColumnNum)

Method Detail

evaluate

public void evaluate(org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch batch)
              throws HiveException

Description copied from class: VectorExpression

This is the primary method to implement expression logic.

Specified by:

evaluate in class VectorExpression

Throws:

HiveException

getMapColumnNum

public int getMapColumnNum()