com.goldencode.p2j.persist.trigger

Class GenericDatabaseTrigger

java.lang.Object

com.goldencode.p2j.persist.trigger.DatabaseTrigger<Buffer>

com.goldencode.p2j.persist.trigger.GenericDatabaseTrigger

public abstract class GenericDatabaseTrigger
extends DatabaseTrigger<Buffer>

Abstract class to be extended by a generic database trigger implementation. This class extends the DatabaseTrigger and restrict the access interface only to the methods which can be called as callback when the triggers are executed: - the methods which are not called are made final and will just report the unexpected call; - the new callback for Assign was added with an empty body.

Constructor Summary

Constructors

Constructor and Description
GenericDatabaseTrigger()

Method Summary

Modifier and Type	Method and Description
void	assign(Buffer buf) Disabled.
void	assign(Buffer buf, BaseDataType oldValueCopy) Disabled.
void	assign(Buffer buf, BaseDataType oldValueCopy, character fieldName) Should be implemented to get a callback for a generic ASSIGN trigger.
void	assign(Undoable newVal) Disabled.
void	assign(Undoable newVal, BaseDataType oldValueCopy) Disabled.
void	create(Buffer buf) Should be implemented to get a callback for a generic CREATE trigger.
void	delete(Buffer buf) Should be implemented to get a callback for a generic DELETE trigger.
void	find(Buffer buf) Should be implemented to get a callback for a generic FIND trigger.
void	replicationCreate(Buffer buf) Disabled.
void	replicationDelete(Buffer buf) Disabled.
void	replicationWrite(Buffer buf) Disabled.
void	replicationWrite(Buffer newBuf, Buffer oldBuf) Disabled.
void	write(Buffer buf) Disabled.
void	write(Buffer newBuf, Buffer oldBuf) Should be implemented to get a callback for a generic WRITE trigger.

Methods inherited from class java.lang.Object

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

Constructor Detail

GenericDatabaseTrigger

public GenericDatabaseTrigger()

Method Detail

assign

public void assign(Buffer buf,
                   BaseDataType oldValueCopy,
                   character fieldName)

Should be implemented to get a callback for a generic ASSIGN trigger.

Parameters:

buf - Buffer which contains the record that triggered the event.

oldValueCopy - A copy of the old value that was changed by assign statement. Even if this value can be overwritten, the change will be lost when exiting the trigger body block.

fieldName - The name of the field which have been changed.

create

public void create(Buffer buf)

Should be implemented to get a callback for a generic CREATE trigger.

Overrides:

create in class DatabaseTrigger<Buffer>

Parameters:

buf - Buffer which contains the record which triggered the event.

delete

public void delete(Buffer buf)

Should be implemented to get a callback for a generic DELETE trigger.

Overrides:

delete in class DatabaseTrigger<Buffer>

Parameters:

buf - Buffer which contains the record which triggered the event.

find

public void find(Buffer buf)

Should be implemented to get a callback for a generic FIND trigger.

Overrides:

find in class DatabaseTrigger<Buffer>

Parameters:

buf - Buffer which contains the record which triggered the event.

write

public void write(Buffer newBuf,
                  Buffer oldBuf)

Should be implemented to get a callback for a generic WRITE trigger.

Overrides:

write in class DatabaseTrigger<Buffer>

Parameters:

newBuf - Buffer which contains the new value of the record which triggered the event.

oldBuf - Buffer which contains the old value of the record which triggered the event.

assign

public final void assign(Buffer buf,
                         BaseDataType oldValueCopy)

Disabled. Should NOT be implemented by an ASSIGN trigger.

Overrides:

assign in class DatabaseTrigger<Buffer>

Parameters:

buf - Buffer which contains the record that triggered the event.

oldValueCopy - A copy of the old value that was changed by assign statement. Even if this value can be overwritten, the change will be lost when exiting the trigger body block.

assign

public final void assign(Buffer buf)

Disabled. Should NOT be implemented by an ASSIGN trigger.

Overrides:

assign in class DatabaseTrigger<Buffer>

Parameters:

buf - Buffer which contains the record that triggered the event.

assign

public final void assign(Undoable newVal,
                         BaseDataType oldValueCopy)

Disabled. Should NOT be implemented by a SCHEMA ASSIGN trigger with NEW form (no field reference).

Overrides:

assign in class DatabaseTrigger<Buffer>

Parameters:

newVal - The value that triggered the event.

oldValueCopy - A copy of the old value that was changed by assign statement. Even if this value can be overwritten, the change will be lost when exiting the trigger body block.

assign

public final void assign(Undoable newVal)

Disabled. Should NOT be implemented by a SCHEMA ASSIGN trigger with NEW form (no field reference). This overloaded method does not pass in the old value.

Overrides:

assign in class DatabaseTrigger<Buffer>

Parameters:

newVal - The value that triggered the event.

write

public final void write(Buffer buf)

Disabled. Should NOT be implemented by a WRITE trigger without OLD buffer specified.

Overrides:

write in class DatabaseTrigger<Buffer>

Parameters:

buf - Buffer which contains the record which triggered the event.

replicationCreate

public final void replicationCreate(Buffer buf)

Disabled. Should NOT be implemented by a REPLICATION-CREATE trigger.

Overrides:

replicationCreate in class DatabaseTrigger<Buffer>

Parameters:

buf - Buffer which contains the record which triggered the event.

replicationDelete

public final void replicationDelete(Buffer buf)

Disabled. Should NOT be implemented by a REPLICATION-DELETE trigger.

Overrides:

replicationDelete in class DatabaseTrigger<Buffer>

Parameters:

buf - Buffer which contains the record which triggered the event.

replicationWrite

public final void replicationWrite(Buffer buf)

Disabled. Should NOT be implemented by a REPLICATION-WRITE trigger without OLD buffer specified.

Overrides:

replicationWrite in class DatabaseTrigger<Buffer>

Parameters:

buf - Buffer which contains the record which triggered the event.

replicationWrite

public final void replicationWrite(Buffer newBuf,
                                   Buffer oldBuf)

Disabled. Should NOT be implemented by a REPLICATION-WRITE trigger with OLD buffer specified.

Overrides:

replicationWrite in class DatabaseTrigger<Buffer>

Parameters:

newBuf - Buffer which contains the new value of the record which triggered the event.

oldBuf - Buffer which contains the old value of the record which triggered the event.