The one thing I always find troublesome with annotation use as a config mechanism is they are unmodufiable. Most frameworks that use annotations almost never include an alternate way to programatically build the same config on that sub-system. Why is this a problem ? It's a problem because you cam only add/set annotation values at compile time- which sucks if you want to use a class instance twice with the only diff being the value portion of an annotation.
Shutup give me a Concrete example I hear you day- take Hibernate. There is no way to alter/override an annotation on an entity in a simple way. Yes the only way is to define everything (almost) for that entity in an XML file. There is no real (public api )way to load some config object from an entity and then call a setter to "override" one feature. Eg replace Hibernate Configuration.addAnnotstedclass with Configuration.addEntity( EntityConfig.scanAnnotations( annotated class).setFeature( x...))); EntityConfig also gets the load from hbm.XML method etc. On 14/03/2011, at 8:08 AM, Mark Derricutt <[email protected]> wrote: > Oh really? I'd never known they had existed until listening to this ep, > googled and found them and thought "wow - this looks AWESOME!", but they're > gone? That sucks. > > -- > "Great artists are extremely selfish and arrogant things" — Steven Wilson, > Porcupine Tree > > On Sun, Mar 13, 2011 at 7:54 PM, Marek <[email protected]> wrote: > So I did a little bit of a research > and it turns out that these annotations were removed in the final > release of the JDBC 4.0 specification (therefore don't look for them > in your JDK6 - there is no @Select, @Update etc.). Does anybody know > why they were removed? > > -- > You received this message because you are subscribed to the Google Groups > "The Java Posse" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/javaposse?hl=en. -- You received this message because you are subscribed to the Google Groups "The Java Posse" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/javaposse?hl=en.
