| AJDT compiler cannot compile generic class with bounds while JDT compiler compiles without any probl [message #66567] |
Thu, 27 July 2006 07:01  |
Eclipse User |
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Hello,
I have some trouble with compiling some generic classes within an
Eclipse AspectJ Project:
Here is an example which reproduces this error:
A basic Message Interface:
package de.tutorials.aspectj;
public interface IMessage {
void publish();
}
An error message Interface:
package de.tutorials.aspectj;
public interface IErrorMessage extends IMessage{
StackTraceElement[] getStackTrace();
}
A generic Message:
package de.tutorials.aspectj;
public class GenericMessage {
public GenericMessage(Class<? extends IMessage> theObjectType) {
//...
}
public Object createProxy() {
// TODO ...
return null;
}
}
The generic ObjectFactory interface:
package de.tutorials.aspectj;
public interface IObjectFactory<E> {
public <T extends E> T create(Class<T> theObjectType, Object[]
theParameters);
}
A factory for creating Messages:
package de.tutorials.aspectj;
public class MessageFactory implements IObjectFactory<IMessage>{
public <T extends IMessage> T create(Class<T> theObjectType, Object[]
theParameters) {
return theObjectType.cast(new
GenericMessage(theObjectType).createProxy());
}
}
We use our MessageFactory to create an ErrorMessage without need for
casting...
package de.tutorials.aspectj;
public class Main {
public static void main(String[] args) {
IErrorMessage message = new
MessageFactory().create(IErrorMessage.class, new Object[]{"Foo","Bar"});
}
}
-> AspectJ Compiler reports:
The type MessageFactory must implement the inherited abstract method
IObjectFactory<IMessage>.create(Class<T>, Object[])
de.tutorials.aspectj/src/de/tutorials/aspectj MessageFactory.java
-> JDT Compiler compiles this without any complaints!?
Eclipse Version 3.2
AJDT Version 1.4
AspectJ Version: 1.5.2
Any hints?
Kind regards,
Thomas
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| Re: AJDT compiler cannot compile generic class with bounds while JDT compiler compiles without any [message #594532 is a reply to message #66567] |
Thu, 27 July 2006 07:20  |
| Eclipse User |
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I've raised this (with a simpler form of your program) as bug 151978:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=151978
Andy.
Thomas Darimont wrote:
> Hello,
>
> I have some trouble with compiling some generic classes within an
> Eclipse AspectJ Project:
>
> Here is an example which reproduces this error:
>
> A basic Message Interface:
>
> package de.tutorials.aspectj;
>
> public interface IMessage {
> void publish();
> }
>
> An error message Interface:
> package de.tutorials.aspectj;
>
> public interface IErrorMessage extends IMessage{
> StackTraceElement[] getStackTrace();
> }
>
>
> A generic Message:
> package de.tutorials.aspectj;
>
> public class GenericMessage {
>
> public GenericMessage(Class<? extends IMessage> theObjectType) {
> //...
> }
>
> public Object createProxy() {
> // TODO ...
> return null;
> }
> }
>
> The generic ObjectFactory interface:
>
> package de.tutorials.aspectj;
>
> public interface IObjectFactory<E> {
> public <T extends E> T create(Class<T> theObjectType, Object[]
> theParameters);
> }
>
>
> A factory for creating Messages:
>
> package de.tutorials.aspectj;
>
> public class MessageFactory implements IObjectFactory<IMessage>{
> public <T extends IMessage> T create(Class<T> theObjectType,
> Object[] theParameters) {
> return theObjectType.cast(new
> GenericMessage(theObjectType).createProxy());
> }
> }
>
> We use our MessageFactory to create an ErrorMessage without need for
> casting...
> package de.tutorials.aspectj;
> public class Main {
> public static void main(String[] args) {
> IErrorMessage message = new
> MessageFactory().create(IErrorMessage.class, new Object[]{"Foo","Bar"});
> }
> }
>
> -> AspectJ Compiler reports:
> The type MessageFactory must implement the inherited abstract method
> IObjectFactory<IMessage>.create(Class<T>, Object[])
> de.tutorials.aspectj/src/de/tutorials/aspectj MessageFactory.java
>
> -> JDT Compiler compiles this without any complaints!?
>
> Eclipse Version 3.2
> AJDT Version 1.4
> AspectJ Version: 1.5.2
>
> Any hints?
>
> Kind regards,
> Thomas
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