Package de.espirit.firstspirit.access

Interface Lockable

All Known Subinterfaces:

ContentPackage, Package, Project, ScheduleEntry, ScheduleTaskTemplate, Task, TemplatePackage

public interface Lockable

This interface provides methods for all elements which supports lock mechanism Date: 24.07.2006 Time: 07:45:22

Since:

4.0

Method Summary

Modifier and Type	Method	Description
boolean	isChanged()	Indicates whether this object is changed locally or not.
boolean	isLocked()	Returns the lock state of this object.
void	lock()	Locks this object.
void	refresh()	Discard local changes and load actual server version of this object
void	save()	Saves this object.
void	unlock()	Unlocks this object.

Method Details

lock

void lock()
   throws ConcurrentChangeException,
LockException

Locks this object. If the version of this object has been changed on the server and it isn't changed locally it will be refreshed transparent.
In case of local changes a ConcurrentModificationException will be thrown.

Throws:

ConcurrentChangeException - if this object is changed locally and it has changed on the server

LockException - if the underlying object is already locked by another user

Since:

4.0

See Also:

• refresh()

unlock

void unlock()

Unlocks this object.

Since:

4.0

isLocked

boolean isLocked()

Returns the lock state of this object.

Returns:

true if this object is locked, false otherwise

Since:

4.0

save

void save()

Saves this object. Requires a lock to this object.

Since:

4.0

isChanged

boolean isChanged()

Indicates whether this object is changed locally or not.

Returns:

true if this object is changed locally, false otherwise

Since:

4.0

refresh

void refresh()

Discard local changes and load actual server version of this object

Since:

4.0