org.teiid.query.processor.relational

Class GroupingNode

java.lang.Object

org.teiid.query.processor.relational.RelationalNode

org.teiid.query.processor.relational.SubqueryAwareRelationalNode

org.teiid.query.processor.relational.GroupingNode

All Implemented Interfaces:

Cloneable, BatchCollector.BatchProducer

public class GroupingNode
extends SubqueryAwareRelationalNode

Field Summary

Fields inherited from class org.teiid.query.processor.relational.RelationalNode

childCount

Constructor Summary

Constructors

Constructor and Description
GroupingNode(int nodeID)

Method Summary

Modifier and Type	Method and Description
Object	clone() All the implementation of Cloneable interface need to implement clone() method.
void	closeDirect()
protected void	closeGroup(int colDiff, boolean reset, CommandContext context)
PlanNode	getDescriptionProperties()
TupleSource	getGroupSortTupleSource()
protected void	getNodeString(StringBuffer str)
Collection<? extends LanguageObject>	getObjects()
void	initialize(CommandContext context, BufferManager bufferManager, ProcessorDataManager dataMgr)
TupleBatch	nextBatchDirect() Template method for subclasses to implement.
void	reset()
static int	sameGroup(int[] indexes, List<?> newTuple, List<?> oldTuple)
void	setOrderBy(List<OrderByItem> orderBy)
void	setOutputMapping(SymbolMap outputMapping)
void	setRemoveDuplicates(boolean removeDuplicates)
void	setRollup(boolean rollup)

Methods inherited from class org.teiid.query.processor.relational.SubqueryAwareRelationalNode

getEvaluator, requiresTransaction, requiresTransaction, setReferenceValues

Methods inherited from class org.teiid.query.processor.relational.RelationalNode

addBatchRow, addChild, close, copyTo, createLookupMap, getBatchSize, getBuffer, getBufferDirect, getBufferManager, getChildCount, getChildren, getClassName, getConnectionID, getContext, getDataManager, getElements, getEstimateNodeCardinality, getID, getNodeStatistics, getOutputElements, getParent, getProjectionIndexes, hasBuffer, hasPendingRows, isBatchFull, isClosed, isLastBatch, nextBatch, nodeToString, open, projectTuple, projectTuple, pullBatch, setContext, setElements, setEstimateDepAccessCardinality, setEstimateDepJoinCost, setEstimateJoinCost, setEstimateNodeCardinality, setEstimateNodeSetSize, setID, setParent, terminateBatches, toString, unwrapException

Methods inherited from class java.lang.Object

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

Constructor Detail

GroupingNode

public GroupingNode(int nodeID)

Method Detail

reset

public void reset()

Overrides:

reset in class SubqueryAwareRelationalNode

setRemoveDuplicates

public void setRemoveDuplicates(boolean removeDuplicates)

setOrderBy

public void setOrderBy(List<OrderByItem> orderBy)

setOutputMapping

public void setOutputMapping(SymbolMap outputMapping)

initialize

public void initialize(CommandContext context,
                       BufferManager bufferManager,
                       ProcessorDataManager dataMgr)

Overrides:

initialize in class RelationalNode

nextBatchDirect

public TupleBatch nextBatchDirect()
                           throws BlockedException,
                                  TeiidComponentException,
                                  TeiidProcessingException

Description copied from class: RelationalNode

Template method for subclasses to implement.

Specified by:

nextBatchDirect in class RelationalNode

Returns:

Throws:

BlockedException

TeiidComponentException

TeiidProcessingException - if exception related to user input occured

getGroupSortTupleSource

public TupleSource getGroupSortTupleSource()

getObjects

public Collection<? extends LanguageObject> getObjects()

Specified by:

getObjects in class SubqueryAwareRelationalNode

closeGroup

protected void closeGroup(int colDiff,
                          boolean reset,
                          CommandContext context)
                   throws FunctionExecutionException,
                          ExpressionEvaluationException,
                          TeiidComponentException,
                          TeiidProcessingException

Throws:

FunctionExecutionException

ExpressionEvaluationException

TeiidComponentException

TeiidProcessingException

sameGroup

public static int sameGroup(int[] indexes,
                            List<?> newTuple,
                            List<?> oldTuple)

closeDirect

public void closeDirect()

Overrides:

closeDirect in class SubqueryAwareRelationalNode

getNodeString

protected void getNodeString(StringBuffer str)

Overrides:

getNodeString in class RelationalNode

clone

public Object clone()

Description copied from class: RelationalNode

All the implementation of Cloneable interface need to implement clone() method. The plan is only clonable in the pre-execution stage, not the execution state (things like program state, result sets, etc). It's only safe to call that method in between query processings, in other words, it's only safe to call clone() on a plan after nextTuple() returns null, meaning the plan has finished processing.

Specified by:

clone in class RelationalNode

getDescriptionProperties

public PlanNode getDescriptionProperties()

Overrides:

getDescriptionProperties in class RelationalNode

setRollup

public void setRollup(boolean rollup)