Comments on: Exploiting Generics Metadata http://blog.springsource.com/2006/09/29/exploiting-generics-metadata/ The voice of SpringSource Sat, 13 Mar 2010 01:18:34 -0600 http://wordpress.org/?v=2.8.5 hourly 1 By: Twigathy http://blog.springsource.com/2006/09/29/exploiting-generics-metadata/comment-page-1/#comment-167967 Twigathy Tue, 11 Aug 2009 19:48:42 +0000 http://blog.interface21.com/main/2006/09/29/exploiting-generics-metadata/#comment-167967 Peter, I also get that. Did you find a solution? Peter, I also get that. Did you find a solution?

]]> By: geekinside's me2DAY http://blog.springsource.com/2006/09/29/exploiting-generics-metadata/comment-page-1/#comment-162494 geekinside's me2DAY Thu, 09 Apr 2009 05:44:30 +0000 http://blog.interface21.com/main/2006/09/29/exploiting-generics-metadata/#comment-162494 gEEkInsIdEì?˜ ëŠ?ë‚Œ…

Exploiting Generics Metadata. ì†?았다! Genericì?€ 컴파ì?¼ í•  때만 쓰는 ê±°ë?¼ê³  하ë?”니만……

]]> By: Peter http://blog.springsource.com/2006/09/29/exploiting-generics-metadata/comment-page-1/#comment-145863 Peter Mon, 09 Feb 2009 14:30:07 +0000 http://blog.interface21.com/main/2006/09/29/exploiting-generics-metadata/#comment-145863 I don't know if anyone is going to read this comment, but I can't seem to get this solution to work. I'm working on Java 6. The line with the return statement generates a ClassCastException. The function getActualTypeArguments returns an array with objects of type sun.reflect.generics.reflectiveObjects.TypeVariableImpl. It does implement the Type interface, but cannot be cast to type Class. I don't know if anyone is going to read this comment, but I can't seem to get this solution to work. I'm working on Java 6. The line with the return statement generates a ClassCastException. The function getActualTypeArguments returns an array with objects of type sun.reflect.generics.reflectiveObjects.TypeVariableImpl. It does implement the Type interface, but cannot be cast to type Class.

]]> By: Ramon Buckland http://blog.springsource.com/2006/09/29/exploiting-generics-metadata/comment-page-1/#comment-50237 Ramon Buckland Fri, 21 Sep 2007 05:08:19 +0000 http://blog.interface21.com/main/2006/09/29/exploiting-generics-metadata/#comment-50237 Hi Rob, That is great. I was amazed to find this because I was trying to write exactly the same thing but was having a 20 minute battle with the reflection API and the generics interface. Your solution was spot on :-) and I was able to drop in your extractTypeParameter() method over the top of mine. great! it really makes it just "that" much bit tidier. Hi Rob,

That is great. I was amazed to find this because I was trying to write exactly the same thing but
was having a 20 minute battle with the reflection API and the generics interface. Your solution was spot on :-) and I was able to drop in your extractTypeParameter() method over the top of mine. great!

it really makes it just "that" much bit tidier.

]]> By: Rob http://blog.springsource.com/2006/09/29/exploiting-generics-metadata/comment-page-1/#comment-38383 Rob Tue, 07 Aug 2007 08:27:04 +0000 http://blog.interface21.com/main/2006/09/29/exploiting-generics-metadata/#comment-38383 That should have been: Francesco, There is no need to create that bean definition - you can simply use MyQueue without the type parameter - at runtime there is no such type as MyQueue<String> when looking at an object instance. You can inject MyQueue into a MyQueue<String> property. Rob That should have been:

Francesco,

There is no need to create that bean definition – you can simply use MyQueue without the type parameter – at runtime there is no such type as MyQueue<String> when looking at an object instance. You can inject MyQueue into a MyQueue<String> property.

Rob

]]> By: Rob http://blog.springsource.com/2006/09/29/exploiting-generics-metadata/comment-page-1/#comment-38382 Rob Tue, 07 Aug 2007 08:25:39 +0000 http://blog.interface21.com/main/2006/09/29/exploiting-generics-metadata/#comment-38382 Francesco, There is no need to create that bean definition - you can simply use MyQueue without the type parameter - at runtime there is no such type as MyQueue when looking at an object instance. You can inject MyQueue into a MyQueue property. Rob Francesco,

There is no need to create that bean definition – you can simply use MyQueue without the type parameter – at runtime there is no such type as MyQueue when looking at an object instance. You can inject MyQueue into a MyQueue property.

Rob

]]> By: Francesco Iadanza http://blog.springsource.com/2006/09/29/exploiting-generics-metadata/comment-page-1/#comment-38378 Francesco Iadanza Tue, 07 Aug 2007 08:02:17 +0000 http://blog.interface21.com/main/2006/09/29/exploiting-generics-metadata/#comment-38378 I'm sorry, I missed the xml configuration. a question about generics and Spring: is this kind of bean definition supported in Spring 2.0? <bean id="test" class="MyQueue<String>" /> I mean, I created a generic bean class MyQueue<T> and I want to specify the type "String" when creating a bean in Spring configuration Thanks a lot Francesco I'm sorry, I missed the xml configuration.

a question about generics and Spring:
is this kind of bean definition supported in Spring 2.0?

<bean id="test" class="MyQueue<String>" />

I mean, I created a generic bean class MyQueue<T> and I want to specify the type "String" when creating a bean in Spring configuration

Thanks a lot
Francesco

]]> By: Francesco Iadanza http://blog.springsource.com/2006/09/29/exploiting-generics-metadata/comment-page-1/#comment-38284 Francesco Iadanza Mon, 06 Aug 2007 20:55:08 +0000 http://blog.interface21.com/main/2006/09/29/exploiting-generics-metadata/#comment-38284 Hi, a question about generics and Spring: is this kind of bean definition supported in Spring 2.0? " / > I mean, I created a generic bean class MyQueue and I want to specify the type "T" when creating a bean in Spring configuration Thanks a lot Francesco Hi,
a question about generics and Spring:
is this kind of bean definition supported in Spring 2.0?

" / >

I mean, I created a generic bean class MyQueue and I want to specify the type "T" when creating a bean in Spring configuration

Thanks a lot
Francesco

]]> By: Francesco Iadanza http://blog.springsource.com/2006/09/29/exploiting-generics-metadata/comment-page-1/#comment-38282 Francesco Iadanza Mon, 06 Aug 2007 20:53:21 +0000 http://blog.interface21.com/main/2006/09/29/exploiting-generics-metadata/#comment-38282 Hi, a question about generics and Spring: is this kind of bean definition supported in Spring 2.0? "> I mean, I created a generic bean class MyQueue and I want to specify the type "T" when creating a bean in Spring configuration Thanks a lot Francesco Hi,
a question about generics and Spring:
is this kind of bean definition supported in Spring 2.0?

">

I mean, I created a generic bean class MyQueue and I want to specify the type "T" when creating a bean in Spring configuration

Thanks a lot
Francesco

]]> By: Interface21 Team Blog » A Bridge Too Far http://blog.springsource.com/2006/09/29/exploiting-generics-metadata/comment-page-1/#comment-8440 Interface21 Team Blog » A Bridge Too Far Tue, 16 Jan 2007 22:19:05 +0000 http://blog.interface21.com/main/2006/09/29/exploiting-generics-metadata/#comment-8440 [...] Posted on January 16th, 2007 by Rob Harrop in Spring. In my last entry I presented a technique for creating strategy classes that take full advantage of any generic metadata that is present in your application. At the end of that entry I showed this code snippet: EntitlementCalculator calculator = new DividendEntitlementCalculator(); calculator.calculateEntitlement(new MergerCorporateActionEvent()); [...] [...] Posted on January 16th, 2007 by Rob Harrop in Spring. In my last entry I presented a technique for creating strategy classes that take full advantage of any generic metadata that is present in your application. At the end of that entry I showed this code snippet: EntitlementCalculator calculator = new DividendEntitlementCalculator(); calculator.calculateEntitlement(new MergerCorporateActionEvent()); [...]

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