Hi, I've implemented this and put the result in the branch feature-execution-context-metadata. Please review it and let me know what you think.
https://github.com/xwiki/xwiki-commons/commit/093366f7396e95ca6d71fbf6df0c6d63be1ac28b Best Regards, /Andreas 2012-10-12 09:27, Andreas Jonsson skrev: > Hi everyone, > > I would like to propose to introduce a possibility to associate > properties in the execution context with metadata by declaring them. We > introduce the class 'ExecutionContextProperty' that will store the > metadata attributes, in addition to the actual property value. > > /** > * Declare a property in the execution context. > * > * @param key The key that names the property > * @param property The property to declare. > */ > public void declareProperty(String key, ExecutionContextProperty property) > > The metadata governs how the property should be treated when managing > the execution contexts. For instance, these attributes could be supported: > > * Read-only - The value may not be updated within the the execution > context. > > * Inherited - The property will be inherited from the current context > when replacing the execution context within the scope of a request. > > * Clone - Also clone the value when the execution context is cloned. > > * Type - The class of the value, for typechecking when replacing > the value. > > * Non-null - The value may not be null > > So, the arguments for this proposal are at least two: > > 1. Catch errors early and simplify debugging. > > 2. Convenience of having properties automatically maintained across > execution contexts within the same request cycle. > > What do you think? > > I would like to implement and merge this ASAP. > > > Best Regards, > > /Andreas > _______________________________________________ devs mailing list [email protected] http://lists.xwiki.org/mailman/listinfo/devs
