org.teiid.query.processor.relational
Class XMLTableNode

java.lang.Object
  org.teiid.query.processor.relational.RelationalNode
      org.teiid.query.processor.relational.SubqueryAwareRelationalNode
          org.teiid.query.processor.relational.XMLTableNode

All Implemented Interfaces:

java.lang.Cloneable, BatchCollector.BatchProducer, SaxonXQueryExpression.RowProcessor

public class XMLTableNode
extends SubqueryAwareRelationalNode
implements SaxonXQueryExpression.RowProcessor

Handles xml table processing. When streaming the results will be fully built and stored in a buffer before being returned

Constructor Summary

XMLTableNode(int nodeID)

Method Summary

XMLTableNode	clone() All the implementation of Cloneable interface need to implement clone() method.
void	closeDirect()
TupleBuffer	getFinalBuffer() return the final tuple buffer or null if not available
boolean	hasFinalBuffer()
protected TupleBatch	nextBatchDirect() Template method for subclasses to implement.
void	processRow(net.sf.saxon.om.NodeInfo row)
void	reset()
void	setProjectedColumns(java.util.List<XMLTable.XMLColumn> projectedColumns)
void	setTable(XMLTable table)

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

getEvaluator, setReferenceValues

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, initialize, isBatchFull, isClosed, isLastBatch, nextBatch, nodeToString, open, 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

XMLTableNode

public XMLTableNode(int nodeID)

Method Detail

closeDirect

public void closeDirect()

Overrides:

closeDirect in class SubqueryAwareRelationalNode

reset

public void reset()

Overrides:

reset in class SubqueryAwareRelationalNode

setTable

public void setTable(XMLTable table)

setProjectedColumns

public void setProjectedColumns(java.util.List<XMLTable.XMLColumn> projectedColumns)

clone

public XMLTableNode 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

nextBatchDirect

protected 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

hasFinalBuffer

public boolean hasFinalBuffer()

Specified by:

hasFinalBuffer in interface BatchCollector.BatchProducer

Overrides:

hasFinalBuffer in class RelationalNode

getFinalBuffer

public TupleBuffer getFinalBuffer()
                           throws BlockedException,
                                  TeiidComponentException,
                                  TeiidProcessingException

Description copied from class: RelationalNode

return the final tuple buffer or null if not available

Specified by:

getFinalBuffer in interface BatchCollector.BatchProducer

Overrides:

getFinalBuffer in class RelationalNode

Returns:

Throws:

BlockedException

TeiidComponentException

TeiidProcessingException

processRow

public void processRow(net.sf.saxon.om.NodeInfo row)

Specified by:

processRow in interface SaxonXQueryExpression.RowProcessor