public class DemuxOperator extends Operator<DemuxDesc> implements java.io.Serializable
Operator.OperatorFunc, Operator.ProgressCounter, Operator.State
Modifier and Type | Field and Description |
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protected static org.apache.commons.logging.Log |
LOG |
alias, beginTime, childOperators, childOperatorsArray, childOperatorsTag, colExprMap, conf, counterNames, counterNameToEnum, counters, done, fatalErrorCntr, groupKeyObject, id, inputObjInspectors, inputRows, isLogInfoEnabled, numInputRowsCntr, numOutputRowsCntr, operatorId, out, outputObjInspector, outputRows, parentOperators, reporter, state, statsMap, timeTakenCntr, totalTime
Constructor and Description |
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DemuxOperator() |
Modifier and Type | Method and Description |
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protected void |
closeOp(boolean abort)
Operator specific close routine.
|
void |
endGroup() |
void |
forward(java.lang.Object row,
ObjectInspector rowInspector) |
java.lang.String |
getName()
Implements the getName function for the Node Interface.
|
static java.lang.String |
getOperatorName() |
OperatorType |
getType()
Return the type of the specific operator among the
types in OperatorType.
|
protected void |
initializeChildren(Configuration hconf)
Calls initialize on each of the children with outputObjetInspector as the
output row format.
|
protected void |
initializeOp(Configuration hconf)
Operator specific initialization.
|
void |
processOp(java.lang.Object row,
int tag)
Process the row.
|
void |
startGroup() |
acceptLimitPushdown, allInitializedParentsAreClosed, areAllParentsInitialized, assignCounterNameToEnum, augmentPlan, checkFatalErrors, cleanUpInputFileChanged, cleanUpInputFileChangedOp, clone, close, columnNamesRowResolvedCanBeObtained, dump, dump, fatalErrorMessage, flush, getAdditionalCounters, getChildOperators, getChildren, getColumnExprMap, getConf, getConfiguration, getCounterNames, getCounterNameToEnum, getCounters, getDone, getExecContext, getGroupKeyObject, getIdentifier, getInputObjInspectors, getNextCntr, getNumChild, getNumParent, getOperatorId, getParentOperators, getSchema, getStats, getWrappedCounterName, incrCounter, initEvaluators, initEvaluators, initEvaluatorsAndReturnStruct, initialize, initialize, initializeCounters, initializeLocalWork, initOperatorId, isUseBucketizedHiveInputFormat, jobClose, jobCloseOp, logStats, opAllowedAfterMapJoin, opAllowedBeforeMapJoin, opAllowedBeforeSortMergeJoin, opAllowedConvertMapJoin, passExecContext, preorderMap, process, processGroup, removeChild, removeChildAndAdoptItsChildren, removeChildren, removeParent, replaceChild, replaceParent, reset, resetId, resetLastEnumUsed, resetStats, setAlias, setChildOperators, setColumnExprMap, setConf, setCounterNames, setCounterNameToEnum, setDone, setExecContext, setGroupKeyObject, setId, setInputObjInspectors, setOperatorId, setOutputCollector, setParentOperators, setReporter, setSchema, setUseBucketizedHiveInputFormat, supportAutomaticSortMergeJoin, supportSkewJoinOptimization, supportUnionRemoveOptimization, toString, toString, updateCounters
protected void initializeOp(Configuration hconf) throws HiveException
Operator
initializeOp
in class Operator<DemuxDesc>
HiveException
protected void initializeChildren(Configuration hconf) throws HiveException
Operator
initializeChildren
in class Operator<DemuxDesc>
HiveException
public void processOp(java.lang.Object row, int tag) throws HiveException
Operator
processOp
in class Operator<DemuxDesc>
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.HiveException
public void forward(java.lang.Object row, ObjectInspector rowInspector) throws HiveException
forward
in class Operator<DemuxDesc>
HiveException
protected void closeOp(boolean abort) throws HiveException
Operator
closeOp
in class Operator<DemuxDesc>
HiveException
public void startGroup() throws HiveException
startGroup
in class Operator<DemuxDesc>
HiveException
public void endGroup() throws HiveException
endGroup
in class Operator<DemuxDesc>
HiveException
public java.lang.String getName()
Operator
public static java.lang.String getOperatorName()
public OperatorType getType()
Operator
Copyright © 2012 The Apache Software Foundation