xdev.db.locking

Interface PessimisticLockStrategy

All Known Implementing Classes:

NoRenewOnComponentFocusPessimisticLockStrategy, NoRenewOnLoadPessimisticLockStrategy, OnComponentFocusPessimisticLockStrategy, OnLoadPessimisticLockStrategy

public interface PessimisticLockStrategy

Determines when a specific PessimisticLock instances PessimisticLock.getLock() is being called.

Since:

4.0

Author:

XDEV Software jwill

Method Summary

Modifier and Type	Method and Description
void	releaseLocking(VirtualTable.VirtualTableRow record, Lockable lockable) Releases the concerned lock at specific circumstances.
void	triggerLocking(VirtualTable.VirtualTableRow record, Lockable lockable) Calls PessimisticLock.getLock() at specific circumstances.

Method Detail

triggerLocking

void triggerLocking(VirtualTable.VirtualTableRow record,
                    Lockable lockable)
             throws RowAlreadyLockedException

Calls PessimisticLock.getLock() at specific circumstances.

Parameters:

record - the "to lock" record.

lockable - the affected Lockable

Throws:

RowAlreadyLockedException - if the concerned row is already locked.

releaseLocking

void releaseLocking(VirtualTable.VirtualTableRow record,
                    Lockable lockable)

Releases the concerned lock at specific circumstances.

Parameters:

record - the "to release" record.

lockable - the affected Lockable