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

Class VectorReduceSinkEmptyKeyOperator

java.lang.Object

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

org.apache.hadoop.hive.ql.exec.TerminalOperator<ReduceSinkDesc>

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

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

All Implemented Interfaces:

Serializable, Cloneable, TopNHash.BinaryCollector, VectorizationContextRegion, VectorizationOperator, Node

public class VectorReduceSinkEmptyKeyOperator
extends VectorReduceSinkCommonOperator

This class is the UniformHash empty key operator class for native vectorized reduce sink. Since there is no key, we initialize the keyWritable once with an empty value.

See Also:

Serialized Form

Nested Class Summary

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

Operator.Counter, Operator.OperatorFunc, Operator.State

Field Summary

Fields inherited from class org.apache.hadoop.hive.ql.exec.vector.reducesink.VectorReduceSinkCommonOperator

batchCounter, isEmptyKey, isEmptyValue, keyBinarySortableSerializeWrite, keyWritable, reducerHash, reduceSinkKeyColumnMap, reduceSinkKeyExpressions, reduceSinkKeyTypeInfos, reduceSinkValueColumnMap, reduceSinkValueExpressions, reduceSinkValueTypeInfos, reduceSkipTag, reduceTagByte, taskName, valueBytesWritable, valueLazyBinarySerializeWrite, valueOutput, valueVectorSerializeRow, vContext, vectorDesc, vectorReduceSinkInfo

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

abortOp, alias, asyncInitOperations, cContext, childOperators, childOperatorsArray, childOperatorsTag, conf, CONTEXT_NAME_KEY, done, groupKeyObject, HIVE_COUNTER_CREATED_DYNAMIC_PARTITIONS, HIVE_COUNTER_CREATED_FILES, HIVE_COUNTER_FATAL, id, inputObjInspectors, numRows, operatorId, outputObjInspector, parentOperators, reporter, runTimeNumRows, state, statsMap

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	VectorReduceSinkEmptyKeyOperator() Kryo ctor.
	VectorReduceSinkEmptyKeyOperator(CompilationOpContext ctx)
	VectorReduceSinkEmptyKeyOperator(CompilationOpContext ctx, OperatorDesc conf, VectorizationContext vContext, VectorDesc vectorDesc)

Method Summary

Modifier and Type	Method and Description
protected void	initializeOp(org.apache.hadoop.conf.Configuration hconf) Operator specific initialization.
void	process(Object row, int tag) Process the row.

Methods inherited from class org.apache.hadoop.hive.ql.exec.vector.reducesink.VectorReduceSinkCommonOperator

closeOp, collect, collect, getInputVectorizationContext, getIsReduceSink, getName, getOperatorName, getOutputVectorizationContext, getReduceOutputName, getType, getVectorDesc, initializeEmptyKey, setOutputCollector

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

abort, acceptLimitPushdown, allInitializedParentsAreClosed, areAllParentsInitialized, augmentPlan, batchNeedsClone, cleanUpInputFileChanged, cleanUpInputFileChangedOp, clone, cloneOp, cloneRecursiveChildren, close, columnNamesRowResolvedCanBeObtained, completeInitializationOp, createDummy, defaultEndGroup, defaultStartGroup, dump, dump, endGroup, flush, flushRecursive, forward, getAdditionalCounters, getChildOperators, getChildren, getColumnExprMap, getCompilationOpContext, getConf, getConfiguration, getCounterName, getDone, getExecContext, getGroupKeyObject, getIdentifier, getInputObjInspectors, getMarker, getNextCntr, getNumChild, getNumParent, getOperatorId, getOpTraits, getOutputObjInspector, getParentOperators, getSchema, getStatistics, getStats, initEvaluators, initEvaluators, initEvaluatorsAndReturnStruct, initialize, initialize, initializeChildren, initializeLocalWork, initOperatorId, isUseBucketizedHiveInputFormat, jobClose, jobCloseOp, logicalEquals, logicalEqualsTree, logStats, opAllowedAfterMapJoin, opAllowedBeforeMapJoin, opAllowedBeforeSortMergeJoin, opAllowedConvertMapJoin, passExecContext, preorderMap, processGroup, removeChild, removeChildAndAdoptItsChildren, removeParent, removeParents, replaceChild, replaceParent, replaceTabAlias, reset, setAlias, setChildOperators, setColumnExprMap, setCompilationOpContext, setConf, setDone, setExecContext, setGroupKeyObject, setInputContext, setInputObjInspectors, setMarker, setNextVectorBatchGroupStatus, setOpTraits, setParentOperators, setReporter, setSchema, setStatistics, setUseBucketizedHiveInputFormat, startGroup, supportAutomaticSortMergeJoin, supportSkewJoinOptimization, supportUnionRemoveOptimization, toString, toString, toString, vectorForward

Methods inherited from class java.lang.Object

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

Constructor Detail

VectorReduceSinkEmptyKeyOperator

protected VectorReduceSinkEmptyKeyOperator()

Kryo ctor.

VectorReduceSinkEmptyKeyOperator

public VectorReduceSinkEmptyKeyOperator(CompilationOpContext ctx)

VectorReduceSinkEmptyKeyOperator

public VectorReduceSinkEmptyKeyOperator(CompilationOpContext ctx,
                                        OperatorDesc conf,
                                        VectorizationContext vContext,
                                        VectorDesc vectorDesc)
                                 throws HiveException

Throws:

HiveException

Method Detail

initializeOp

protected void initializeOp(org.apache.hadoop.conf.Configuration hconf)
                     throws HiveException

Description copied from class: Operator

Operator specific initialization.

Overrides:

initializeOp in class VectorReduceSinkCommonOperator

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<ReduceSinkDesc>

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