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

Class IfExprCondExprBase

java.lang.Object

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

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

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

IfExprColumnCondExpr, IfExprCondExprColumn, IfExprCondExprCondExpr, IfExprCondExprNull, IfExprNullCondExpr

public abstract class IfExprCondExprBase
extends VectorExpression

Base class that supports conditional execution of the THEN/ELSE vector expressions of a SQL IF statement.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected int	arg1Column
protected int[]	elseSelected
protected int	elseSelectedCount
protected boolean	isIfStatementResultRepeated
protected boolean	isIfStatementResultThen
protected int[]	thenSelected
protected int	thenSelectedCount

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
IfExprCondExprBase()
IfExprCondExprBase(int arg1Column, int outputColumnNum)

Method Summary

Modifier and Type	Method and Description
void	conditionalEvaluate(org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch batch, VectorExpression condVecExpr, int[] condSelected, int condSize)
void	evaluate(org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch batch) This is the primary method to implement expression logic.
VectorExpressionDescriptor.Descriptor	getDescriptor()

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

displayArrayOfUtf8ByteArrays, displayUtf8Bytes, doTransientInit, doTransientInit, evaluateChildren, getChildExpressions, getColumnParamString, 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

Field Detail

arg1Column

protected final int arg1Column

isIfStatementResultRepeated

protected transient boolean isIfStatementResultRepeated

isIfStatementResultThen

protected transient boolean isIfStatementResultThen

thenSelectedCount

protected transient int thenSelectedCount

thenSelected

protected transient int[] thenSelected

elseSelectedCount

protected transient int elseSelectedCount

elseSelected

protected transient int[] elseSelected

Constructor Detail

IfExprCondExprBase

public IfExprCondExprBase(int arg1Column,
                          int outputColumnNum)

IfExprCondExprBase

public IfExprCondExprBase()

Method Detail

conditionalEvaluate

public void conditionalEvaluate(org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch batch,
                                VectorExpression condVecExpr,
                                int[] condSelected,
                                int condSize)
                         throws HiveException

Throws:

HiveException

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

getDescriptor

public VectorExpressionDescriptor.Descriptor getDescriptor()

Specified by:

getDescriptor in class VectorExpression