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

Class IfExprCondExprColumn

java.lang.Object

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

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

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

All Implemented Interfaces:

Serializable

public class IfExprCondExprColumn
extends IfExprCondExprBase

Do conditional execution of the THEN/ vector expression and regular execution of the ELSE vector expression (a column or scalar) of a SQL IF statement.

See Also:

Serialized Form

Field Summary

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

elseSelected, elseSelectedCount, isIfStatementResultRepeated, isIfStatementResultThen, thenSelected, thenSelectedCount

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
IfExprCondExprColumn()
IfExprCondExprColumn(int arg1Column, int arg2Column, int arg3Column, int outputColumnNum)

Method Summary

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

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

conditionalEvaluate, getDescriptor

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

IfExprCondExprColumn

public IfExprCondExprColumn(int arg1Column,
                            int arg2Column,
                            int arg3Column,
                            int outputColumnNum)

IfExprCondExprColumn

public IfExprCondExprColumn()

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 IfExprCondExprBase

Throws:

HiveException

vectorExpressionParameters

public String vectorExpressionParameters()

Specified by:

vectorExpressionParameters in class VectorExpression