Andy, Thanks for the quick answer. I've submitted an enhancement request. Let me know if it needs more detail.
https://bugs.eclipse.org/bugs/show_bug.cgi?id=345515 Thanks. -- Adam On Wed, May 11, 2011 at 4:22 PM, Andy Clement <andrew.clem...@gmail.com>wrote: > Hi, > > I'm afraid you can't do that with AspectJ right now, you can't pass a > piece of the matched information to the new annotation. I can perhaps > imagine some hypothetical syntax: > > declare @field: > @SortedOneToMany(sort=SortType.COMPARATOR,comparator={1}) * * : > @Sort(type=SortType.COMPARATOR,comparator={1}); > > which would seem to achieve what you want. > > Maybe raise an enhancement request for it: > https://bugs.eclipse.org/bugs/enter_bug.cgi?product=AspectJ > > sorry I don't have better news. > > cheers > Andy > > On 11 May 2011 13:55, Adam Howard <howard.a...@gmail.com> wrote: > > I've asked this question on StackOverflow and have not gotten an answer > > after 115 views so I thought > > I would ask here. You can post your answer on SO too if you'd like the > rep. > > > http://stackoverflow.com/questions/5901690/turning-one-annotation-into-many-annotations-with-aspectj > > I have discovered a pattern in my JPA mappings that I would like to > codify. > > A simple example follows: > > @OneToMany(fetch=FetchType.EAGER) > > @Sort(type=SortType.NATURAL) > > private SortedSet<Item> items; > > I would like to create a single annotation called SortedOneToMany that I > can > > apply to the above set: > > public @interface SortedOneToMany { > > FetchType fetch() default EAGER; > > SortType sort() default NATURAL; > > Class comparator() default void.class; > > } > > I have written the following aspect to "attach" the JPA annotations > whenever > > it sees my annotation: > > public aspect SortedOneToManyAspect { > > declare @field: @SortedOneToMany * * : > > @OneToMany(fetch=FetchType.EAGER); > > declare @field: @SortedOneToMany * * : > @Sort(type=SortType.NATURAL); > > } > > But I don't know how can I access the values of the SortedOneToMany > > annotation parameters and use them when defining the OneToMany and Sort > > annotations. There may be cases where I want to change one of the default > > values like so: > > > > > @SortedOneToMany(sort=SortType.COMPARATOR,comparator=ItemComparator.class) > > private SortedSet<Item> items; > > So how can I pass the annotation values from SortedOneToMany to the Sort > > annotation? > > Thanks. > > -- > > Adam > > > > _______________________________________________ > > aspectj-users mailing list > > aspectj-users@eclipse.org > > https://dev.eclipse.org/mailman/listinfo/aspectj-users > > > > > _______________________________________________ > aspectj-users mailing list > aspectj-users@eclipse.org > https://dev.eclipse.org/mailman/listinfo/aspectj-users >
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