org.apache.hadoop.hive.ql.exec

Class CommonMergeJoinOperator

java.lang.Object

org.apache.hadoop.hive.ql.exec.Operator<T>

org.apache.hadoop.hive.ql.exec.CommonJoinOperator<T>

org.apache.hadoop.hive.ql.exec.AbstractMapJoinOperator<CommonMergeJoinDesc>

org.apache.hadoop.hive.ql.exec.CommonMergeJoinOperator

All Implemented Interfaces:

Serializable, Cloneable, Node

public class CommonMergeJoinOperator
extends AbstractMapJoinOperator<CommonMergeJoinDesc>
implements Serializable

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.exec.Operator

Operator.OperatorFunc, Operator.State

Field Summary

Fields inherited from class org.apache.hadoop.hive.ql.exec.AbstractMapJoinOperator

emptyList, joinKeys, joinKeysObjectInspectors, posBigTable

Fields inherited from class org.apache.hadoop.hive.ql.exec.CommonJoinOperator

alias, aliasFilterTags, condn, countAfterReport, dummyObj, dummyObjVectors, filterMaps, filterTags, forwardCache, hconf, heartbeatInterval, intermediate, joinFilterObjectInspectors, joinFilters, joinValues, joinValuesObjectInspectors, joinValuesStandardObjectInspectors, noOuterJoin, NOTSKIPBIGTABLE, nullsafes, numAliases, offsets, order, rowContainerStandardObjectInspectors, skipVectors, spillTableDesc, totalSz

Fields inherited from class org.apache.hadoop.hive.ql.exec.Operator

childOperators, childOperatorsArray, childOperatorsTag, colExprMap, conf, CONTEXT_NAME_KEY, done, groupKeyObject, HIVECOUNTERCREATEDFILES, HIVECOUNTERFATAL, id, inputObjInspectors, isLogDebugEnabled, isLogInfoEnabled, isLogTraceEnabled, operatorId, out, outputObjInspector, parentOperators, PLOG, reporter, state, statsMap

Constructor Summary

Constructors

Constructor and Description
CommonMergeJoinOperator()

Method Summary

Methods

Modifier and Type	Method and Description
void	cloneOriginalParentsList(List<Operator<? extends OperatorDesc>> opList)
void	closeOp(boolean abort) All done.
void	endGroup() Forward a record of join results.
String	getName() Implements the getName function for the Node Interface.
static String	getOperatorName()
int	getTagForOperator(Operator<? extends OperatorDesc> op)
OperatorType	getType() Return the type of the specific operator among the types in OperatorType.
void	initializeLocalWork(org.apache.hadoop.conf.Configuration hconf)
Collection<Future<?>>	initializeOp(org.apache.hadoop.conf.Configuration hconf) Operator specific initialization.
boolean	isBigTableWork()
void	process(Object row, int tag) Process the row.
void	setIsBigTableWork(boolean bigTableWork)
void	startGroup()

Methods inherited from class org.apache.hadoop.hive.ql.exec.AbstractMapJoinOperator

getValueObjectInspectors

Methods inherited from class org.apache.hadoop.hive.ql.exec.CommonJoinOperator

checkAndGenObject, getFilteredValue, getFilterTag, getNextSize, getPosToAliasMap, hasFilter, internalForward, opAllowedAfterMapJoin, opAllowedBeforeMapJoin, reportProgress, setPosToAliasMap

Methods inherited from class org.apache.hadoop.hive.ql.exec.Operator

acceptLimitPushdown, allInitializedParentsAreClosed, areAllParentsInitialized, augmentPlan, cleanUpInputFileChanged, cleanUpInputFileChangedOp, clone, cloneOp, cloneRecursiveChildren, close, columnNamesRowResolvedCanBeObtained, completeInitializationOp, createDummy, defaultEndGroup, defaultStartGroup, dump, dump, flush, forward, getAdditionalCounters, getChildOperators, getChildren, getColumnExprMap, getConf, getConfiguration, getDone, getExecContext, getGroupKeyObject, getIdentifier, getInputObjInspectors, getNextCntr, getNumChild, getNumParent, getOperatorId, getOpTraits, getOutputObjInspector, getParentOperators, getSchema, getStatistics, getStats, initEvaluators, initEvaluators, initEvaluatorsAndReturnStruct, initialize, initialize, initializeChildren, initOperatorId, isUseBucketizedHiveInputFormat, jobClose, jobCloseOp, logStats, opAllowedBeforeSortMergeJoin, opAllowedConvertMapJoin, passExecContext, preorderMap, processGroup, removeChild, removeChildAndAdoptItsChildren, removeChildren, removeParent, replaceChild, replaceParent, reset, resetId, resetStats, setAlias, setChildOperators, setColumnExprMap, setConf, setDone, setExecContext, setGroupKeyObject, setId, setInputContext, setInputObjInspectors, setOperatorId, setOpTraits, setOutputCollector, setParentOperators, setReporter, setSchema, setStatistics, setUseBucketizedHiveInputFormat, supportAutomaticSortMergeJoin, supportSkewJoinOptimization, supportUnionRemoveOptimization, toString, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

CommonMergeJoinOperator

public CommonMergeJoinOperator()

Method Detail

initializeOp

public Collection<Future<?>> initializeOp(org.apache.hadoop.conf.Configuration hconf)
                                   throws HiveException

Description copied from class: Operator

Operator specific initialization.

Overrides:

initializeOp in class AbstractMapJoinOperator<CommonMergeJoinDesc>

Throws:

HiveException

endGroup

public void endGroup()
              throws HiveException

Description copied from class: CommonJoinOperator

Forward a record of join results.

Overrides:

endGroup in class CommonJoinOperator<CommonMergeJoinDesc>

Throws:

HiveException

startGroup

public void startGroup()
                throws HiveException

Overrides:

startGroup in class CommonJoinOperator<CommonMergeJoinDesc>

Throws:

HiveException

process

public void process(Object row,
           int tag)
             throws HiveException

Description copied from class: Operator

Process the row.

Specified by:

process in class Operator<CommonMergeJoinDesc>

Parameters:

row - The object representing the row.

tag - The tag of the row usually means which parent this row comes from. Rows with the same tag should have exactly the same rowInspector all the time.

Throws:

HiveException

closeOp

public void closeOp(boolean abort)
             throws HiveException

Description copied from class: CommonJoinOperator

All done.

Overrides:

closeOp in class AbstractMapJoinOperator<CommonMergeJoinDesc>

Throws:

HiveException

getName

public String getName()

Description copied from class: Operator

Implements the getName function for the Node Interface.

Specified by:

getName in interface Node

Overrides:

getName in class CommonJoinOperator<CommonMergeJoinDesc>

Returns:

the name of the operator

getOperatorName

public static String getOperatorName()

getType

public OperatorType getType()

Description copied from class: Operator

Return the type of the specific operator among the types in OperatorType.

Overrides:

getType in class AbstractMapJoinOperator<CommonMergeJoinDesc>

Returns:

OperatorType.*

initializeLocalWork

public void initializeLocalWork(org.apache.hadoop.conf.Configuration hconf)
                         throws HiveException

Overrides:

initializeLocalWork in class Operator<CommonMergeJoinDesc>

Throws:

HiveException

isBigTableWork

public boolean isBigTableWork()

setIsBigTableWork

public void setIsBigTableWork(boolean bigTableWork)

getTagForOperator

public int getTagForOperator(Operator<? extends OperatorDesc> op)

cloneOriginalParentsList

public void cloneOriginalParentsList(List<Operator<? extends OperatorDesc>> opList)