[forge-dev] Fully qualified classes within annotations?
Lincoln Baxter, III
lincolnbaxter at gmail.com
Tue Jan 17 23:01:25 EST 2012
Ah. Nested annotations. Now I get it. I guess we don't support nested
annotations at the moment.
JIRA this?
Until then, you may have to parse it yourself if you *really* need it, but
hopefully we can get the JavaParser updated. Curious. Why do you need this?
~Lincoln
On Tue, Jan 17, 2012 at 5:40 PM, Richard Kennard <
richard at kennardconsulting.com> wrote:
> Lincoln,
>
> Sorry if I'm being dumb! Calling...
>
> javaSource.getAnnotation(resolvedType)
>
> ...returns null. I'm not sure how it could work anyway, as we're talking
> about a *specific instance* of a *nested* annotation here, not just
> instantiating
> any old annotation from its class name. So presumably it needs to parse
> something? Here's the JavaSource:
>
> public class MockAnnotatedMethod
> {
> @MockAnnotation( anAnnotation = @AnotherMockAnnotation(43)),
> public MockAnnotatedMethod()
> {
> }
> }
>
> So I can get @MockAnnotation just fine. But then...
>
> annotationSource.getLiteralValue("anAnnotation")
>
> ...returns the String...
>
> "@AnotherMockAnnotation(43)"
>
> How can I parse that back into an AnnotationImpl? Maybe I need some method
> other than 'getLiteralValue', 'getStringValue' and 'getEnumValue'?
>
> Regards,
>
> Richard.
>
> On 18/01/2012 3:37 AM, Lincoln Baxter, III wrote:
> > I'm a bit confused here. You have the JavaSource where the annotation is
> located, so can't you call field/method/class.getAnnotation(type), which
> should
> > then give you an AnnotationImpl that you can query?
> >
> > What am I missing?
> > ~Lincoln
> >
> > On Sun, Jan 15, 2012 at 9:28 PM, Richard Kennard <
> richard at kennardconsulting.com <mailto:richard at kennardconsulting.com>>
> wrote:
> >
> > Lincoln,
> >
> > Okay that may work for me. I tried it and Class seems okay. However
> Annotations are still tricky. I can do...
> >
> > if (Annotation.class.isAssignableFrom(returnType))
> > {
> > String resolvedType =
> StringUtils.substringAfter(literalValue, "@");
> > resolvedType = ((JavaSource<?>)
> this.annotationSource.getOrigin()).resolveType(resolvedType);
> >
> > ...and 'resolvedType' is a fully qualified String. But how can I
> turn that String into a 'proper' AnnotationImpl Object? I need this so I
> can call
> > .getLiteralValue(...attribute...) on it.
> >
> > Richard.
> >
> > On 14/01/2012 4:41 AM, Lincoln Baxter, III wrote:
> > > Hey Richard,
> > >
> > > There is a method in JavaSource called resolveType(); This method
> will return the fully qualified type of the given Class name; however,
> there is a big
> > > issue here at the moment. We cannot resolve wildcards, or classes
> from the same package that are in the 'package' visibility scope.
> > >
> > > https://issues.jboss.org/browse/FORGE-424
> > >
> > > In these two cases, resolveType() will actually return the class
> name unchanged, which is your signal to take desperate measures, because I
> don't think
> > > that we will be fixing this in time for .Final. In the case of
> Column.class, I would start by assuming that the class is what you expect,
> and in
> > the case
> > > of other unknown types, at this point - unfortunately - it's going
> to be up to you to figure out what that type is, and if reasonable
> assumptions
> > can be
> > > made.
> > >
> > > Sorry about this, I know it's a big gap, but it's going to take a
> lot of work to fix this as you might be able to see in the issue. But
> definitely call
> > > resolveType() as a first step, then you'll have to "worry" about
> handling potential issues where the type information is not available.
> > >
> > > We also can't tell if a Class literal is a class, interface, enum,
> etc...
> > >
> > > ~Lincoln
> > >
> > > On Thu, Jan 12, 2012 at 11:46 PM, Richard Kennard <
> richard at kennardconsulting.com <mailto:richard at kennardconsulting.com>
> > <mailto:richard at kennardconsulting.com <mailto:
> richard at kennardconsulting.com>>> wrote:
> > >
> > > Lincoln,
> > >
> > > As you may recall, the new 'static Metawidget' scaffolding
> tries to reuse Inspectors between the runtime/static worlds. To do this, it
> needs to
> > reify the
> > > annotations from org.jboss.forge.parser.java.Annotations into
> 'proper' java.lang.annotation.Annotations.
> > >
> > > This is mostly working, but I am struggling with reifying two
> things:
> > >
> > > 1. If the annotation's value is a Class
> > > 2. If the annotation's value is another annotation
> > >
> > > The problem is the same in both cases - I am lacking the
> qualified name of the class/annotation. If they user enters:
> > >
> > > @MyAnnotation( Column.class )
> > >
> > > Then I need to know that it's actually a
> javax.persistence.Column.class. This is a bit beyond me! I have left a
> couple of TODOs in
> > ForgePropertyStyle and
> > > in ForgePropertyStyleTest. Could you take a look?
> > >
> > > Regards,
> > >
> > > Richard.
> > > _______________________________________________
> > > forge-dev mailing list
> > > forge-dev at lists.jboss.org <mailto:forge-dev at lists.jboss.org>
> <mailto:forge-dev at lists.jboss.org <mailto:forge-dev at lists.jboss.org>>
> > > https://lists.jboss.org/mailman/listinfo/forge-dev
> > >
> > >
> > >
> > >
> > > --
> > > Lincoln Baxter, III
> > > http://ocpsoft.com
> > > http://scrumshark.com
> > > "Keep it Simple"
> > >
> > >
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> >
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> >
> >
> >
> >
> > --
> > Lincoln Baxter, III
> > http://ocpsoft.com
> > http://scrumshark.com
> > "Keep it Simple"
> >
> >
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> > https://lists.jboss.org/mailman/listinfo/forge-dev
>
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--
Lincoln Baxter, III
http://ocpsoft.com
http://scrumshark.com
"Keep it Simple"
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