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

Class VectorSelectOperator

java.lang.Object

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

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

All Implemented Interfaces:

Serializable, Cloneable, VectorizationContextRegion, Node

public class VectorSelectOperator
extends Operator<SelectDesc>
implements VectorizationContextRegion

Select operator implementation.

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

Modifier and Type	Field and Description
protected VectorExpression[]	vExpressions

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

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

Constructor Summary

Constructors

Constructor and Description
VectorSelectOperator()
VectorSelectOperator(VectorizationContext vContext, OperatorDesc conf)

Method Summary

Methods

Modifier and Type	Method and Description
static String	getOperatorName()
VectorizationContext	getOuputVectorizationContext()
OperatorType	getType() Return the type of the specific operator among the types in OperatorType.
VectorExpression[]	getvExpressions()
VectorExpression[]	getVExpressions()
protected Collection<Future<?>>	initializeOp(org.apache.hadoop.conf.Configuration hconf) Operator specific initialization.
void	process(Object row, int tag) Process the row.
void	setvExpressions(VectorExpression[] vExpressions)
void	setVExpressions(VectorExpression[] vExpressions)

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

acceptLimitPushdown, allInitializedParentsAreClosed, areAllParentsInitialized, augmentPlan, cleanUpInputFileChanged, cleanUpInputFileChangedOp, clone, cloneOp, cloneRecursiveChildren, close, closeOp, columnNamesRowResolvedCanBeObtained, completeInitializationOp, createDummy, defaultEndGroup, defaultStartGroup, dump, dump, endGroup, flush, forward, getAdditionalCounters, getChildOperators, getChildren, getColumnExprMap, getConf, getConfiguration, getDone, getExecContext, getGroupKeyObject, getIdentifier, getInputObjInspectors, getName, getNextCntr, getNumChild, getNumParent, getOperatorId, getOpTraits, getOutputObjInspector, getParentOperators, getSchema, getStatistics, getStats, initEvaluators, initEvaluators, initEvaluatorsAndReturnStruct, initialize, initialize, initializeChildren, initializeLocalWork, initOperatorId, isUseBucketizedHiveInputFormat, jobClose, jobCloseOp, logStats, opAllowedAfterMapJoin, opAllowedBeforeMapJoin, 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, startGroup, supportAutomaticSortMergeJoin, supportSkewJoinOptimization, supportUnionRemoveOptimization, toString, toString

Methods inherited from class java.lang.Object

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

Field Detail

vExpressions

protected VectorExpression[] vExpressions

Constructor Detail

VectorSelectOperator

public VectorSelectOperator(VectorizationContext vContext,
                    OperatorDesc conf)
                     throws HiveException

Throws:

HiveException

VectorSelectOperator

public VectorSelectOperator()

Method Detail

initializeOp

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

Description copied from class: Operator

Operator specific initialization.

Overrides:

initializeOp in class Operator<SelectDesc>

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<SelectDesc>

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

getOperatorName

public static String getOperatorName()

getvExpressions

public VectorExpression[] getvExpressions()

getVExpressions

public VectorExpression[] getVExpressions()

setvExpressions

public void setvExpressions(VectorExpression[] vExpressions)

setVExpressions

public void setVExpressions(VectorExpression[] vExpressions)

getOuputVectorizationContext

public VectorizationContext getOuputVectorizationContext()

Specified by:

getOuputVectorizationContext in interface VectorizationContextRegion

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<SelectDesc>

Returns:

OperatorType.*