0 Replies Latest reply on Jul 14, 2011 7:40 PM by christian peixoto

    AroundInvoke in a CDI project

    christian peixoto Newbie

      There are 3 projects that use CDI. Project A has an Interceptor for transaction control.


      Project B uses Project A to save data in a database. When I run these unit tests, everything passes.


      Project C uses Project B for integration tests. These tests fails when it finds the @AroundInvoke annotation from Interceptor.


      What is going wrong? The interceptor is only in Project B beans.xml.


      The exception stacktrace doesn't clear up my mind. It only show a jassist error. Debugging, I found that the problem comes from boostrap.deploybeans() inside Weld. So, I commented the @AroundInvoke in the interceptor class and everything goes fine with tests, but the insert on database. I think that happens because I removed the interceptor that creates transaction for inserts.


      The code:


      1) There is a project A which defines an annotation and an interceptor for this annotation. Example:


      /Annotation/


        


      @InterceptorBinding
          @Retention(RetentionPolicy.RUNTIME)
          @Target({ElementType.TYPE, ElementType.METHOD})
          public @interface Transactional {
          }





         
      /Interceptor/
         
         


      @Interceptor
          @Transactional
          public class TransactionalInterceptor implements Serializable {
              …
              @AroundInvoke
              public Object intercept(InvocationContext context) throws Exception {
                  …
              }
              …
          }




         


      I think this project must have an empty /META-INF/beans.xml.


      2) There is another project B that uses the interceptor from project A. Example:


         


      public class ProjectBClass {
              …
              @Transactional
              public void interceptorMethod() {
                  …
              }
              …
          }




         


      So I think this project must have a /META-INF/beans.xml that enables the interceptor. Example:


         


      <beans>
          <interceptors>
          <class>br.com.company.projecta.TransactionalInterceptor</class>
          </interceptors>
          </beans>




         
      3) Finally, there's a project C that uses the method from project B. Example:
         
         


      public class ProjectCClass {
              …
              private ProjectBClass projectBClass;
              …
              public void testerMethod() {
                  …
                  this.projectBClass.interceptorMethod();
                  …
              }
              …
          }





      I am not sure if it must have a /META-INF/beans.xml.


      4) In this same project, there is an integration test which tests the method. Example:
       



      public class ProjectCClassTest {
             …
             @Test
             public void test() {
                ProjectCClass projectCClass = new ProjectCClass();
                projectCClass.testerMethod();
                …
                Assert.assertEquals(…);
             }
             …
          }