ERXCopyable
ERXCopyable
- Subject: ERXCopyable
- From: David Avendasora <email@hidden>
- Date: Mon, 11 Feb 2013 14:54:51 +0800
| Hi All (with special greetings to Chuck and Sacha),
In my eternal quest to eliminate all of my bug-prone Davecode™, I've finally finished off my re-implementation of EOCopyable.
I've called it ERXCopyable and while it is fundamentally based on what Chuck and Sacha put together for Practical WebObjects, my revisions make use of Java generics for better type safety and also make it entirely possible to control the copy process from within an Entity's EOModel UserInfo dictionaries.
I wet so far as to also craft additions to the EOGenerator templates that eliminate the need to write any code at all for most copy tasks. The template will automatically add the "implements ERXCopyable" to any Entity you've flagged with a "ERXCopyable" key, and do the work of writing the methods required by the interface. You simply specify on attribute and relationship how you want them to be copied and ERXCopyable takes care of all the work!
I even included some behaviors beyond the simple "Reference", "Shallow" and "Deep" copying, including "Nullify" and "CurrentTimestamp" to eliminate the developer (me) having to write any code at all if all that needs to be done is is leave the attribute or relationship null or override a NSTimestamp attribute with the current timestamp. I'm considering adding others such as "Increment" and "UUID" but I don't want to get too carried away with hiding logic in the EOModel file.
The Javadoc provides extensive documentation on how to use it, but please feel free to ask questions and suggest improvements so I can make it even easier to understand!
Dave
————————————————————————————— WebObjects - so easy that even Dave Avendasora can do it!™ ————————————————————————————— David Avendasora Senior Software Abuser Kaiten, Inc.
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