org.teiid.query.processor.relational
Class UnionAllNode

java.lang.Object
  org.teiid.query.processor.relational.RelationalNode
      org.teiid.query.processor.relational.UnionAllNode

All Implemented Interfaces:

java.lang.Cloneable, BatchCollector.BatchProducer

public class UnionAllNode
extends RelationalNode

Constructor Summary

UnionAllNode(int nodeID)

Method Summary

java.lang.Object	clone() All the implementation of Cloneable interface need to implement clone() method.
void	closeDirect()
void	initialize(CommandContext context, BufferManager bufferManager, ProcessorDataManager dataMgr)
TupleBatch	nextBatchDirect() Template method for subclasses to implement.
void	open()
void	reset()

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

addBatchRow, addChild, close, copy, createLookupMap, getBatchSize, getBufferManager, getChildren, getClassName, getConnectionID, getContext, getDataManager, getDescriptionProperties, getElements, getEstimateNodeCardinality, getID, getNodeStatistics, getNodeString, getOutputElements, getParent, getProjectionIndexes, hasPendingRows, isBatchFull, isClosed, isLastBatch, nextBatch, nodeToString, projectTuple, pullBatch, setContext, setElements, setEstimateDepAccessCardinality, setEstimateDepJoinCost, setEstimateJoinCost, setEstimateNodeCardinality, setEstimateNodeSetSize, setID, setParent, terminateBatches, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

UnionAllNode

public UnionAllNode(int nodeID)

Method Detail

reset

public void reset()

Overrides:

reset in class RelationalNode

initialize

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

Overrides:

initialize in class RelationalNode

open

public void open()
          throws TeiidComponentException,
                 TeiidProcessingException

Overrides:

open in class RelationalNode

Throws:

TeiidComponentException

TeiidProcessingException

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

closeDirect

public void closeDirect()

Overrides:

closeDirect in class RelationalNode

clone

public java.lang.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