Re: EOEnterpriseObjectClazz with interface
Re: EOEnterpriseObjectClazz with interface
- Subject: Re: EOEnterpriseObjectClazz with interface
- From: Johann Werner <email@hidden>
- Date: Mon, 19 Nov 2018 08:36:48 +0100
Hi Mark,
have a look at BugTracker and its dependent framework BTBusinessLogic. That
should you give some ideas. There are some more apps/frameworks in Wonder using
that pattern, just have a look at the type hierarchy of the
EOEnterpriseObjectClazz class (in Eclipse right click on the class name and
select „Open Type Hierarchy“ from the context menu).
jw
> Am 19.11.2018 um 06:31 schrieb Morris, Mark <email@hidden>:
>
> Hi all,
>
> I ran into a simple case where a good old ObjC protocol would have worked
> fine, but Java provides only frustration. 😉
>
> I wanted to require that a class that decides to implement a particular
> interface should as part of that interface implement a certain static method.
> No go in Java.
>
> The implementing classes will always be subclasses of ERXGenericRecord, and a
> little searching uncovered the promising EOEnterpriseObjectsClazz approach.
> Right at the top it says:
>
> In Java, static methods are similar to class methods in Objective-C, but one
> cannot use static methods in interfaces and static methods cannot be
> overridden by a subclass. Using the clazz pattern removes those limitations.
>
> However, I didn’t see any examples of this use, and spent a little time but
> couldn’t figure it out. Are there any examples out there?
>
> Thanks!
> Mark
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