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

Class ScalarNullOrCol

java.lang.Object

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

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

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

All Implemented Interfaces:

Serializable

public class ScalarNullOrCol
extends ColOrCol

See Also:

Serialized Form

Field Summary

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

childExpressions, inputColumnNum, inputDataTypePhysicalVariations, inputTypeInfos, LOG, outputColumnNum, outputDataTypePhysicalVariation, outputTypeInfo

Constructor Summary

Constructors

Constructor and Description
ScalarNullOrCol()
ScalarNullOrCol(ConstantVectorExpression expression, int colNum, int outputColumnNum)

Method Summary

Modifier and Type	Method and Description
void	evaluate(VectorizedRowBatch batch) This is the primary method to implement expression logic.
VectorExpressionDescriptor.Descriptor	getDescriptor()
String	vectorExpressionParameters()

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

doEvaluate

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

displayArrayOfUtf8ByteArrays, displayUtf8Bytes, doTransientInit, doTransientInit, evaluateChildren, getChildExpressions, getChildExpressionsForTransientInit, getColumnParamString, getDoubleValueParamString, getInputDataTypePhysicalVariations, getInputTypeInfos, getLongValueParamString, getOutputColumnNum, getOutputColumnVectorType, getOutputDataTypePhysicalVariation, getOutputTypeInfo, getParamTypeString, getTypeName, init, setChildExpressions, setInputDataTypePhysicalVariations, setInputTypeInfos, setOutputDataTypePhysicalVariation, setOutputTypeInfo, shouldConvertDecimal64ToDecimal, supportsCheckedExecution, toString, transientInit

Methods inherited from class java.lang.Object

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

Constructor Detail

ScalarNullOrCol

public ScalarNullOrCol(ConstantVectorExpression expression,
                       int colNum,
                       int outputColumnNum)

ScalarNullOrCol

public ScalarNullOrCol()

Method Detail

evaluate

public void evaluate(VectorizedRowBatch batch)
              throws HiveException

Description copied from class: VectorExpression

This is the primary method to implement expression logic.

Overrides:

evaluate in class ColOrCol

Throws:

HiveException

vectorExpressionParameters

public String vectorExpressionParameters()

Overrides:

vectorExpressionParameters in class ColOrCol

getDescriptor

public VectorExpressionDescriptor.Descriptor getDescriptor()

Overrides:

getDescriptor in class ColOrCol