com.metamatrix.query.processor.relational
Class AccessNode
java.lang.Object
com.metamatrix.query.processor.relational.RelationalNode
com.metamatrix.query.processor.relational.AccessNode
- All Implemented Interfaces:
- Describable, java.lang.Cloneable
- Direct Known Subclasses:
- DependentAccessNode, DependentProcedureAccessNode
public class AccessNode
- extends RelationalNode
Fields inherited from interface com.metamatrix.query.processor.Describable |
PROP_BINDINGS, PROP_CHILDREN, PROP_CONDITIONS, PROP_CRITERIA, PROP_DATA_COL, PROP_DEFAULT, PROP_DEFAULT_PROGRAM, PROP_ELSE, PROP_ENCODING, PROP_EXECUTION_PLAN, PROP_EXPRESSION, PROP_FORMATTED, PROP_GROUP, PROP_GROUP_COLS, PROP_IN_MEMORY, PROP_INTO_GROUP, PROP_IS_STAGING, PROP_JOIN_CRITERIA, PROP_JOIN_STRATEGY, PROP_JOIN_TYPE, PROP_MESSAGE, PROP_MODEL_NAME, PROP_NAMESPACE, PROP_NAMESPACE_DECL, PROP_NODE_COST_ESTIMATES, PROP_NODE_STATS_LIST, PROP_NODE_STATS_PROPS, PROP_OPTIONAL, PROP_OUTPUT_COLS, PROP_PROGRAM, PROP_PROGRAMS, PROP_RECURSE_DIR, PROP_REMOVE_DUPS, PROP_RESULT_SET, PROP_ROW_LIMIT, PROP_ROW_OFFSET, PROP_SELECT_COLS, PROP_SORT_COLS, PROP_SQL, PROP_TAG, PROP_THEN, PROP_TYPE, PROP_VARIABLE |
Methods inherited from class com.metamatrix.query.processor.relational.RelationalNode |
addBatchRow, addChild, copy, createLookupMap, getBatchSize, getBufferManager, getChildDescriptionProperties, getChildPlans, getChildren, getClassName, getConnectionID, getContext, getDataManager, getElements, getEstimateNodeCardinality, getID, getLanguageObjects, getNodeStatistics, getParent, hasPendingRows, initialize, isBatchFull, isClosed, 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 |
AccessNode
public AccessNode(int nodeID)
reset
public void reset()
- Overrides:
reset
in class RelationalNode
setCommand
public void setCommand(Command command)
getCommand
public Command getCommand()
setModelName
public void setModelName(java.lang.String name)
getModelName
public java.lang.String getModelName()
setShouldEvaluateExpressions
public void setShouldEvaluateExpressions(boolean shouldEvaluate)
open
public void open()
throws MetaMatrixComponentException,
MetaMatrixProcessingException
- Overrides:
open
in class RelationalNode
- Throws:
MetaMatrixComponentException
MetaMatrixProcessingException
prepareNextCommand
protected boolean prepareNextCommand(Command atomicCommand)
throws MetaMatrixComponentException,
MetaMatrixProcessingException
- Throws:
MetaMatrixComponentException
MetaMatrixProcessingException
nextBatchDirect
public TupleBatch nextBatchDirect()
throws BlockedException,
MetaMatrixComponentException,
MetaMatrixProcessingException
- Description copied from class:
RelationalNode
- Template method for subclasses to implement.
- Specified by:
nextBatchDirect
in class RelationalNode
- Returns:
-
- Throws:
BlockedException
MetaMatrixComponentException
MetaMatrixProcessingException
- if exception related to user input occured
processCommandsIndividually
protected boolean processCommandsIndividually()
hasNextCommand
protected boolean hasNextCommand()
close
public void close()
throws MetaMatrixComponentException
- Overrides:
close
in class RelationalNode
- Throws:
MetaMatrixComponentException
getNodeString
protected void getNodeString(java.lang.StringBuffer str)
- Overrides:
getNodeString
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
copy
protected void copy(AccessNode source,
AccessNode target)
getDescriptionProperties
public java.util.Map getDescriptionProperties()
- Description copied from interface:
Describable
- Get a description as a set of properties of primitive types such
as String, Integer, etc.
- Specified by:
getDescriptionProperties
in interface Describable
- Overrides:
getDescriptionProperties
in class RelationalNode
- Returns:
- Map of properties
getConnectorBindingId
public java.lang.String getConnectorBindingId()
setConnectorBindingId
public void setConnectorBindingId(java.lang.String connectorBindingId)
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