org.apache.hadoop.hive.ql.plan

Class UnionDesc

java.lang.Object

org.apache.hadoop.hive.ql.plan.AbstractOperatorDesc

org.apache.hadoop.hive.ql.plan.UnionDesc

All Implemented Interfaces:

Serializable, Cloneable, OperatorDesc

public class UnionDesc
extends AbstractOperatorDesc

unionDesc is a empty class currently. However, union has more than one input (as compared with forward), and therefore, we need a separate class.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.hadoop.hive.ql.plan.AbstractOperatorDesc

colExprMap, memAvailable, memNeeded, opProps, opTraits, runtimeStatsTmpDir, statistics, vectorDesc, vectorMode

Constructor Summary

Constructors

Constructor and Description
UnionDesc()

Method Summary

Modifier and Type	Method and Description
int	getNumInputs()
boolean	isAllInputsInSameReducer()
void	setAllInputsInSameReducer(boolean allInputsInSameReducer)
void	setNumInputs(int numInputs)

Methods inherited from class org.apache.hadoop.hive.ql.plan.AbstractOperatorDesc

clone, fillSignature, getColumnExprMap, getColumnExprMapForExplain, getMaxMemoryAvailable, getMemoryNeeded, getOpProps, getRuntimeStatsTmpDir, getStatistics, getTraits, getUserLevelStatistics, getVectorDesc, getVectorMode, isSame, setColumnExprMap, setMaxMemoryAvailable, setMemoryNeeded, setOpProps, setRuntimeStatsTmpDir, setStatistics, setTraits, setVectorDesc, setVectorMode

Methods inherited from class java.lang.Object

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

Constructor Detail

UnionDesc

public UnionDesc()

Method Detail

getNumInputs

public int getNumInputs()

Returns:

the numInputs

setNumInputs

public void setNumInputs(int numInputs)

Parameters:

numInputs - the numInputs to set

isAllInputsInSameReducer

public boolean isAllInputsInSameReducer()

setAllInputsInSameReducer

public void setAllInputsInSameReducer(boolean allInputsInSameReducer)