weblogic10的EJB3.0实现仅在类层次上支持泛型

weblogic10的EJB3.0实现仅在类层次上支持泛型

见下面的文档描述：
The EJB 3.0 programming model supports the use of generics in the business interface at the class level.

BEA recommends as a best practice that you first define a super-interface that uses the generics, and then have the actual business interface extend this super-interface with a specific data type.

The following example shows how to do this. First program the super-interface that uses generics:

  public interface RootI<T> {

    public T getObject();

public void updateObject(T object);

}

Then program the actual business interface to extend Root*<T> for a particular data type:

  @Remote

public interface StatelessI extends RootI<String> { }

Finally, program the actual stateless session bean to implement the business interface; use the specified data type, in this case String, in the implementation of the methods:

  @Stateless

public class StatelessSample implements StatelessI {

public String getObject() {

return null;

}

public void updateObject(String object) {

}

}