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I'm using automatic controller for a simple object. My object has a field "description". When I'm saving a new object I would like to validate that "description" is unique in my db. Where I should do this validation? When I implement it in Object.aj Roo erase it!
@paramosyermos,
Roo will delete .aj files when changes are necessary. The recommended way is to 'push-in' the method you want to change from the .aj file to the actual java source file. You can do that manually or use STS to do it for you. If you don't change the method signature, you will notice that Roo will not generate the method in the aj file any more and therefore you have full control of your customized method in the normal java sources.
HTH,
Stefan