Package nl.vpro.domain.media

Annotation Type MediaObjectLocker.Mid

@Retention(RUNTIME)
public static @interface MediaObjectLocker.Mid

Adding this annotation of a method with a String or MediaIdentifiable argument will 'lock' the identifier, and will make sure that no other code doing the same will run simultaneously.

Much code like this will be getting a mediaobject using this mid, change it and then commit the mediaobject.

If another thread is changing the mediaobject in between those events, those changes will be lost.

This can therefore be avoided using these annotations (or equivalently by using MediaObjectLocker.withMidLock(String, String, Callable)

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element	Description
int	argNumber	The argument on which to lock.
String	method	A method on the argument to call to get the MID.
String	reason	A description of the reason of the lock.

Element Detail

argNumber

int argNumber

The argument on which to lock. First one is 0.

Default:

0

reason

String reason

A description of the reason of the lock. Only used for logging purposes.

Default:

""

method

String method

A method on the argument to call to get the MID. Default we suppose the argument to _be_ the MID.

Default:

""