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

Class VectorUDFMapIndexBaseCol

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.VectorUDFMapIndexBaseCol

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

VectorUDFMapIndexDoubleCol, VectorUDFMapIndexLongCol, VectorUDFMapIndexStringCol

public abstract class VectorUDFMapIndexBaseCol
extends VectorUDFMapIndexBase

Superclass to support vectorized functions that take a column value 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
VectorUDFMapIndexBaseCol()
VectorUDFMapIndexBaseCol(int mapColumnNum, int indexColumnNum, 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.
protected Object	getCurrentKey(int index)
int	getIndexColumnNum()
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

VectorUDFMapIndexBaseCol

public VectorUDFMapIndexBaseCol()

VectorUDFMapIndexBaseCol

public VectorUDFMapIndexBaseCol(int mapColumnNum,
                                int indexColumnNum,
                                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

getCurrentKey

protected Object getCurrentKey(int index)

getMapColumnNum

public int getMapColumnNum()

getIndexColumnNum

public int getIndexColumnNum()