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:

java.io.Externalizable, java.io.Serializable, Formatable, TypedFormat, ConstantAction

public class DeleteConstantAction
extends WriteCursorConstantAction

This class describes compiled constants that are passed into DeleteResultSets.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
(package private) ConstantAction[]	dependentCActions
(package private) int	numColumns This class implements Formatable.
(package private) ResultDescription	resultDescription

Fields inherited from class org.apache.derby.impl.sql.execute.WriteCursorConstantAction

conglomId, deferred, heapSCOCI, indexCIDS, indexNames, indexSCOCIs, irgs, lockMode, singleRowSource, targetUUID

Constructor Summary

Constructors

Constructor and Description
DeleteConstantAction() Public niladic constructor.
DeleteConstantAction(long conglomId, StaticCompiledOpenConglomInfo heapSCOCI, IndexRowGenerator[] irgs, long[] indexCIDS, StaticCompiledOpenConglomInfo[] indexSCOCIs, boolean deferred, UUID targetUUID, int lockMode, FKInfo[] fkInfo, TriggerInfo triggerInfo, FormatableBitSet baseRowReadList, int[] baseRowReadMap, int[] streamStorableHeapColIds, int numColumns, boolean singleRowSource, ResultDescription resultDescription, ConstantAction[] dependentCActions) Make the ConstantAction for an DELETE statement.

Method Summary

Methods

Modifier and Type	Method and Description
int	getTypeFormatId() Get the formatID which corresponds to this class.
void	readExternal(java.io.ObjectInput in) Read this object from a stream of stored objects.
void	writeExternal(java.io.ObjectOutput out) Write this object to a stream of stored objects.

Methods inherited from class org.apache.derby.impl.sql.execute.WriteCursorConstantAction

executeConstantAction, getBaseRowReadList, getBaseRowReadMap, getConglomerateId, getFKInfo, getIndexNameFromCID, getIndexNames, getProperty, getStreamStorableHeapColIds, getTargetProperties, getTriggerInfo

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.

dependentCActions

ConstantAction[] dependentCActions

resultDescription

ResultDescription resultDescription

Constructor Detail

DeleteConstantAction

public DeleteConstantAction()

Public niladic constructor. Needed for Formatable interface to work.

DeleteConstantAction

public DeleteConstantAction(long conglomId,
                    StaticCompiledOpenConglomInfo heapSCOCI,
                    IndexRowGenerator[] irgs,
                    long[] indexCIDS,
                    StaticCompiledOpenConglomInfo[] indexSCOCIs,
                    boolean deferred,
                    UUID targetUUID,
                    int lockMode,
                    FKInfo[] fkInfo,
                    TriggerInfo triggerInfo,
                    FormatableBitSet baseRowReadList,
                    int[] baseRowReadMap,
                    int[] streamStorableHeapColIds,
                    int numColumns,
                    boolean singleRowSource,
                    ResultDescription resultDescription,
                    ConstantAction[] dependentCActions)

Make the ConstantAction for an DELETE statement.

Parameters:

conglomId - Conglomerate ID.

heapSCOCI - StaticCompiledOpenConglomInfo for heap.

irgs - Index descriptors

indexCIDS - Conglomerate IDs of indices

indexSCOCIs - StaticCompiledOpenConglomInfos for indexes.

deferred - True means process as a deferred insert.

targetUUID - UUID of target table

lockMode - The lock mode to use (row or table, see TransactionController)

fkInfo - Array of structures containing foreign key info, if any (may be null)

triggerInfo - Array of structures containing trigger info, if any (may be null)

baseRowReadList - Map of columns read in. 1 based.

streamStorableHeapColIds - Null for non rep. (0 based)

numColumns - Number of columns to read.

singleRowSource - Whether or not source is a single row source

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

Parameters:

in - read this.

Throws:

java.io.IOException - thrown on error

java.lang.ClassNotFoundException - thrown on error

See Also:

Externalizable.readExternal(java.io.ObjectInput)

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

Parameters:

out - write bytes here.

Throws:

java.io.IOException - thrown on error

getTypeFormatId

public int getTypeFormatId()

Get the formatID which corresponds to this class.

Returns:

the formatID of this class