org.apache.hadoop.hive.ql.exec

Class ScriptOperator

java.lang.Object

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

org.apache.hadoop.hive.ql.exec.ScriptOperator

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, Node

public class ScriptOperator
extends Operator<ScriptDesc>
implements java.io.Serializable

ScriptOperator.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ScriptOperator.Counter Counter.
class	ScriptOperator.PathFinder Maps a relative pathname to an absolute pathname using the PATH enviroment.

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

Operator.OperatorFunc, Operator.ProgressCounter, Operator.State

Field Summary

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

alias, beginTime, childOperators, childOperatorsArray, childOperatorsTag, colExprMap, conf, counterNames, counterNameToEnum, counters, done, fatalErrorCntr, groupKeyObject, id, inputObjInspectors, inputRows, isLogInfoEnabled, LOG, numInputRowsCntr, numOutputRowsCntr, operatorId, out, outputObjInspector, outputRows, parentOperators, reporter, state, statsMap, timeTakenCntr, totalTime

Constructor Summary

Constructors

Constructor and Description
ScriptOperator()

Method Summary

Modifier and Type	Method and Description
protected java.lang.String[]	addWrapper(java.lang.String[] inArgs) Wrap the script in a wrapper that allows admins to control.
void	close(boolean abort)
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	initializeOp(Configuration hconf) Operator specific initialization.
void	processOp(java.lang.Object row, int tag) Process the row.
static java.lang.String[]	splitArgs(java.lang.String args)

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

acceptLimitPushdown, allInitializedParentsAreClosed, areAllParentsInitialized, assignCounterNameToEnum, augmentPlan, checkFatalErrors, cleanUpInputFileChanged, cleanUpInputFileChangedOp, clone, closeOp, columnNamesRowResolvedCanBeObtained, dump, dump, endGroup, fatalErrorMessage, flush, forward, 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, initializeChildren, 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, startGroup, supportAutomaticSortMergeJoin, supportSkewJoinOptimization, supportUnionRemoveOptimization, toString, toString, updateCounters

Methods inherited from class java.lang.Object

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

Constructor Detail

ScriptOperator

public ScriptOperator()

Method Detail

initializeOp

protected void initializeOp(Configuration hconf)
                     throws HiveException

Description copied from class: Operator

Operator specific initialization.

Overrides:

initializeOp in class Operator<ScriptDesc>

Throws:

HiveException

processOp

public void processOp(java.lang.Object row,
                      int tag)
               throws HiveException

Description copied from class: Operator

Process the row.

Specified by:

processOp in class Operator<ScriptDesc>

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

close

public void close(boolean abort)
           throws HiveException

Overrides:

close in class Operator<ScriptDesc>

Throws:

HiveException

addWrapper

protected java.lang.String[] addWrapper(java.lang.String[] inArgs)

Wrap the script in a wrapper that allows admins to control.

splitArgs

public static java.lang.String[] splitArgs(java.lang.String args)

getName

public java.lang.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 Operator<ScriptDesc>

Returns:

the name of the operator

getOperatorName

public static java.lang.String getOperatorName()

getType

public OperatorType getType()

Description copied from class: Operator

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

Specified by:

getType in class Operator<ScriptDesc>

Returns:

OperatorType.*