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org.apache.derby.impl.sql.execute
Class DeleteConstantAction  

java.lang.Object
  org.apache.derby.impl.sql.execute.WriteCursorConstantAction
      org.apache.derby.impl.sql.execute.DeleteConstantAction

All Implemented Interfaces:

org.apache.derby.iapi.sql.execute.ConstantAction, java.io.Externalizable, org.apache.derby.iapi.services.io.Formatable, java.io.Serializable, org.apache.derby.iapi.services.io.TypedFormat

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public class DeleteConstantAction

extends WriteCursorConstantAction

This class describes compiled constants that are passed into DeleteResultSets.

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Field Summary
long	conglomId           This class implements Formatable.
boolean	deferred
(package private)  org.apache.derby.iapi.sql.execute.ConstantAction[]	dependentCActions
org.apache.derby.iapi.store.access.StaticCompiledOpenConglomInfo	heapSCOCI
long[]	indexCIDS
java.lang.String[]	indexNames
org.apache.derby.iapi.store.access.StaticCompiledOpenConglomInfo[]	indexSCOCIs
org.apache.derby.iapi.sql.dictionary.IndexRowGenerator[]	irgs
int	lockMode
(package private)  int	numColumns           This class implements Formatable.
(package private)  org.apache.derby.iapi.sql.ResultDescription	resultDescription
boolean	singleRowSource
java.util.Properties	targetProperties
org.apache.derby.catalog.UUID	targetUUID

 

Fields inherited from interface org.apache.derby.iapi.sql.execute.ConstantAction

RUNTIMESTATISTICS, STATISTICSTIMING

 

Constructor Summary

DeleteConstantAction()           Public niladic constructor.

DeleteConstantAction(long conglomId, org.apache.derby.iapi.store.access.StaticCompiledOpenConglomInfo heapSCOCI, org.apache.derby.iapi.sql.dictionary.IndexRowGenerator[] irgs, long[] indexCIDS, org.apache.derby.iapi.store.access.StaticCompiledOpenConglomInfo[] indexSCOCIs, org.apache.derby.iapi.sql.execute.ExecRow emptyHeapRow, boolean deferred, org.apache.derby.catalog.UUID targetUUID, int lockMode, FKInfo[] fkInfo, TriggerInfo triggerInfo, org.apache.derby.iapi.services.io.FormatableBitSet baseRowReadList, int[] baseRowReadMap, int[] streamStorableHeapColIds, int numColumns, boolean singleRowSource, org.apache.derby.iapi.sql.ResultDescription resultDescription, org.apache.derby.iapi.sql.execute.ConstantAction[] dependentCActions)           Make the ConstantAction for an DELETE statement.

 

Method Summary
void	executeConstantAction(org.apache.derby.iapi.sql.Activation activation)           NOP routine.
org.apache.derby.iapi.services.io.FormatableBitSet	getBaseRowReadList()
int[]	getBaseRowReadMap()
long	getConglomerateId()           Get the conglomerate id for the changed heap.
org.apache.derby.iapi.sql.execute.ExecRow	getEmptyHeapRow(org.apache.derby.iapi.sql.conn.LanguageConnectionContext lcc)           Get emptyHeapRow
FKInfo[]	getFKInfo(org.apache.derby.iapi.sql.execute.ExecutionContext ec)           Gets the foreign key information for this constant action.
java.lang.String	getIndexNameFromCID(long indexCID)           get the index name given the conglomerate id of the index.
java.lang.String[]	getIndexNames()
java.lang.String	getProperty(java.lang.String key)           The the value of the specified key, if it exists, from the targetProperties.
int[]	getStreamStorableHeapColIds()
java.util.Properties	getTargetProperties()           Get the targetProperties from the constant action.
TriggerInfo	getTriggerInfo(org.apache.derby.iapi.sql.execute.ExecutionContext ec)           Basically, the same as getFKInfo but for triggers.
int	getTypeFormatId()           Get the formatID which corresponds to this class.
boolean	modifiesTableId(org.apache.derby.catalog.UUID tableId)           Does this constant action modify the passed in table uuid? By modify we mean add or drop things tied to this table (e.g.
void	readExternal(java.io.ObjectInput in)           Read this object from a stream of stored objects.
boolean	upToDate()           Reports whether these constants are up-to-date.
void	writeExternal(java.io.ObjectOutput out)           Write this object to a stream of stored objects.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

numColumns

int numColumns

This class implements Formatable. But it is NOT used across either major or minor releases. It is only written persistently in stored prepared statements, not in the replication stage. SO, IT IS OK TO CHANGE ITS read/writeExternal.

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dependentCActions

org.apache.derby.iapi.sql.execute.ConstantAction[] dependentCActions

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resultDescription

org.apache.derby.iapi.sql.ResultDescription resultDescription

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conglomId

public long conglomId

This class implements Formatable. But it is NOT used across either major or minor releases. It is only written persistently in stored prepared statements, not in the replication stage. SO, IT IS OK TO CHANGE ITS read/writeExternal.

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heapSCOCI

public org.apache.derby.iapi.store.access.StaticCompiledOpenConglomInfo heapSCOCI

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irgs

public org.apache.derby.iapi.sql.dictionary.IndexRowGenerator[] irgs

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indexCIDS

public long[] indexCIDS

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indexSCOCIs

public org.apache.derby.iapi.store.access.StaticCompiledOpenConglomInfo[] indexSCOCIs

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indexNames

public java.lang.String[] indexNames

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deferred

public boolean deferred

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targetProperties

public java.util.Properties targetProperties

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targetUUID

public org.apache.derby.catalog.UUID targetUUID

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lockMode

public int lockMode

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singleRowSource

public boolean singleRowSource

Constructor Detail

DeleteConstantAction

public DeleteConstantAction()

Public niladic constructor. Needed for Formatable interface to work.

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DeleteConstantAction

public DeleteConstantAction(long conglomId,
                            org.apache.derby.iapi.store.access.StaticCompiledOpenConglomInfo heapSCOCI,
                            org.apache.derby.iapi.sql.dictionary.IndexRowGenerator[] irgs,
                            long[] indexCIDS,
                            org.apache.derby.iapi.store.access.StaticCompiledOpenConglomInfo[] indexSCOCIs,
                            org.apache.derby.iapi.sql.execute.ExecRow emptyHeapRow,
                            boolean deferred,
                            org.apache.derby.catalog.UUID targetUUID,
                            int lockMode,
                            FKInfo[] fkInfo,
                            TriggerInfo triggerInfo,
                            org.apache.derby.iapi.services.io.FormatableBitSet baseRowReadList,
                            int[] baseRowReadMap,
                            int[] streamStorableHeapColIds,
                            int numColumns,
                            boolean singleRowSource,
                            org.apache.derby.iapi.sql.ResultDescription resultDescription,
                            org.apache.derby.iapi.sql.execute.ConstantAction[] dependentCActions)

Make the ConstantAction for an DELETE statement.

Method Detail

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Description copied from class: WriteCursorConstantAction

Read this object from a stream of stored objects.

Specified by:

readExternal in interface java.io.Externalizable

Overrides:

readExternal in class WriteCursorConstantAction

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writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Description copied from class: WriteCursorConstantAction

Write this object to a stream of stored objects.

Specified by:

writeExternal in interface java.io.Externalizable

Overrides:

writeExternal in class WriteCursorConstantAction

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getTypeFormatId

public int getTypeFormatId()

Get the formatID which corresponds to this class.

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getFKInfo

public FKInfo[] getFKInfo(org.apache.derby.iapi.sql.execute.ExecutionContext ec)
                   throws org.apache.derby.iapi.error.StandardException

Gets the foreign key information for this constant action. A full list of foreign keys was compiled into this constant action. However, we prune this list at run time so that we enforce only the foreign keys that we absolutely must. What's going on here? Well, in certain contexts (REFRESH and when intially booting a Target), we don't have to enforce some foreign keys. We allow the ExecutionContext to rule on which foreign keys are relevant and which aren't.

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getTriggerInfo

public TriggerInfo getTriggerInfo(org.apache.derby.iapi.sql.execute.ExecutionContext ec)
                           throws org.apache.derby.iapi.error.StandardException

Basically, the same as getFKInfo but for triggers.

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upToDate

public boolean upToDate()

Reports whether these constants are up-to-date. This returns true for homogenous Cloudscape/Cloudsync. For the Plugin, this may return false;

Specified by:

upToDate in interface org.apache.derby.iapi.sql.execute.ConstantAction

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executeConstantAction

public void executeConstantAction(org.apache.derby.iapi.sql.Activation activation)
                           throws org.apache.derby.iapi.error.StandardException

NOP routine. The work is done in InsertResultSet.

Specified by:

executeConstantAction in interface org.apache.derby.iapi.sql.execute.ConstantAction

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getConglomerateId

public long getConglomerateId()

Get the conglomerate id for the changed heap.

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getEmptyHeapRow

public org.apache.derby.iapi.sql.execute.ExecRow getEmptyHeapRow(org.apache.derby.iapi.sql.conn.LanguageConnectionContext lcc)
                                                          throws org.apache.derby.iapi.error.StandardException

Get emptyHeapRow

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getTargetProperties

public java.util.Properties getTargetProperties()

Get the targetProperties from the constant action.

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getProperty

public java.lang.String getProperty(java.lang.String key)

The the value of the specified key, if it exists, from the targetProperties.

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getBaseRowReadList

public org.apache.derby.iapi.services.io.FormatableBitSet getBaseRowReadList()

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getBaseRowReadMap

public int[] getBaseRowReadMap()

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getStreamStorableHeapColIds

public int[] getStreamStorableHeapColIds()

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getIndexNameFromCID

public java.lang.String getIndexNameFromCID(long indexCID)

get the index name given the conglomerate id of the index.

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getIndexNames

public java.lang.String[] getIndexNames()

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modifiesTableId

public boolean modifiesTableId(org.apache.derby.catalog.UUID tableId)

Does this constant action modify the passed in table uuid? By modify we mean add or drop things tied to this table (e.g. index, trigger, constraint). Things like views or spses that reference this table don't count.

Specified by:

modifiesTableId in interface org.apache.derby.iapi.sql.execute.ConstantAction

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> derby >> impl >> sql >> [ execute overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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