Examples of org.milyn.scribe.IllegalAnnotationUsageException

org.milyn.scribe.IllegalAnnotationUsageException
A IllegalAnnotationUsageException is thrown when a Annotation was used in a wrong 'illegal' way. @author maurice.zeijen@smies.com

   */
  private void analyzeFlushMethod(final AnnotatedMethod aMethod) {
    Method method = aMethod.getMethod();


    if(flushMethod != null) {
      throw new IllegalAnnotationUsageException("At least two methods are annotated with the '"+ Flush.class.getName() +"'. Only one method per class is allowed to be the flush method.");
    }
    if(method.getParameterTypes().length > 0) {
      throw new IllegalAnnotationUsageException("The Flush annotated method '"+ method +"' of the DAO class '"+ daoClass.getName() +"' has parameters, which isn't allowed.");
    }


    flushMethod = new FlushMethod(method);
  }

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    }


    assertUniqueName(updateMethods, Update.class, name);


    if(annotation.isDefault() && defaultUpdateMethod != null) {
      throw new IllegalAnnotationUsageException("At least two methods are annotated with the '"+ Update.class.getName() +"' having the isDefault on true. Only one method per class is allowed to be the default update method.");
    }
    if(method.getParameterTypes().length == 0) {
      throw new IllegalAnnotationUsageException("The Update annotated method '"+ method +"' of the DAO class '"+ daoClass.getName() +"' doesn't have any parameters.");
    }
    if(method.getParameterTypes().length > 1) {
      throw new IllegalAnnotationUsageException("The Update annotated method '"+ method +"' of the DAO class '"+ daoClass.getName() +"' has more then 1 parameter, which isn't allowed.");
    }




    boolean returnsEntity  = !method.isAnnotationPresent(ReturnsNoEntity.class);

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    }


    assertUniqueName(insertMethods, Insert.class, name);


    if(annotation.isDefault() && defaultInsertMethod != null) {
      throw new IllegalAnnotationUsageException("At least two methods are annotated with the '"+ Insert.class.getName() +"'annotation having the isDefault on true. Only one method per class is allowed to be the default insert method.");
    }
    if(method.getParameterTypes().length == 0) {
      throw new IllegalAnnotationUsageException("The Insert annotated method '"+ method +"' of the DAO class '"+ daoClass.getName() +"'  doesn't have any parameters.");
    }
    if(method.getParameterTypes().length > 1) {
      throw new IllegalAnnotationUsageException("The Insert annotated method '"+ method +"' of the DAO class '"+ daoClass.getName() +"' has more then 1 parameter, which isn't allowed.");
    }


    boolean returnsEntity  = !method.isAnnotationPresent(ReturnsNoEntity.class);


    EntityMethod insertMethod = new EntityMethod(method, returnsEntity);

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    }


    assertUniqueName(deleteMethods, Delete.class, name);


    if(annotation.isDefault() && defaultDeleteMethod != null) {
      throw new IllegalAnnotationUsageException("At least two methods are annotated with the '"+ Delete.class.getName() +"' annotation having the isDefault on true. Only one method per class is allowed to be the default delete method.");
    }
    if(method.getParameterTypes().length == 0) {
      throw new IllegalAnnotationUsageException("The Delete annotated method '"+ method +"' of the DAO class '"+ daoClass.getName() +"' doesn't have a parameter, which it needs.");
    }
    if(method.getParameterTypes().length > 1) {
      throw new IllegalAnnotationUsageException("The Delete annotated method '"+ method +"'  the DAO class '"+ daoClass.getName() +"' has more then 1 parameter, which isn't allowed.");
    }




    boolean returnsEntity  = !method.isAnnotationPresent(ReturnsNoEntity.class);

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    Method method = aMethod.getMethod();


    Class<?>[] parameters = method.getParameterTypes();


    if(method.getParameterTypes().length != 2) {
      throw new IllegalAnnotationUsageException("The FindByQuery annotated method '"+ method +"' of the DAO class '"+ daoClass.getName() +"' " +
          "doesn't have exactly two parameters.");
    }


    if(!Collection.class.isAssignableFrom(method.getReturnType())) {
      throw new IllegalAnnotationUsageException("The FindByQuery annotated method '"+ method +"' of the DAO class '"+ daoClass.getName() +"' " +
        "doesn't return an instance of Collection.");


    }


    int queryIndex = indexOffFirstAssignableClass(String.class, parameters);
    if(queryIndex == -1) {
      throw new IllegalAnnotationUsageException("The FindByQuery annotated method '"+ method +"' of the DAO class '"+ daoClass.getName() +"' " +
        "doesn't have a String parameter. This parameter is needed to receive the query string.");
    }


    int parameterIndex = (queryIndex == 0) ? 1 : 0;


    if(containsAssignableClass(List.class, parameters) || containsAssignableClass(Object[].class, parameters)) {


      if(lookupWithPositionalQueryMethod != null) {
        throw new IllegalAnnotationUsageException("A second method annotated with the '"+ LookupByQuery.class.getName() +"' annotation is found for a Positional query. " +
            "Only one method, with a List or Object array parameter, per class is allowed to be annotated with this annotation.");
      }


      lookupWithPositionalQueryMethod = new LookupWithPositionalQueryMethod(method, queryIndex, parameterIndex);


    } else if(containsAssignableClass(Map.class, parameters)){


      if(lookupWithNamedQueryMethod != null) {
        throw new IllegalAnnotationUsageException("A second method annotated with the '"+ LookupByQuery.class.getName() +"' annotation is found for a Positional query. " +
            "Only one method, with a Map parameter, per class is allowed to be annotated with this annotation.");
      }


      lookupWithNamedQueryMethod = new LookupWithNamedQueryMethod(method, queryIndex, parameterIndex);


    } else {
      throw new IllegalAnnotationUsageException("The FindByQuery annotated method '"+ method +"' of the DAO class '"+ daoClass.getName() +"' " +
        "doesn't have a List, Object array or Map parameter. This parameter is needed to receive the query parameters.");
    }




  }

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    }


    assertUniqueName(lookupWithNamedParameters, Lookup.class, name);


    if(void.class.equals(method.getReturnType())){
      throw new IllegalAnnotationUsageException("The FindBy annotated method '"+ method +"' of the DAO class '"+ daoClass.getName() +"' " +
          "returns void, which isn't allowed. The method must return something.");
    }


    lookupWithNamedParameters.put(name, new LookupMethod(method));
  }

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  /**
   * @param name
   */
  private void assertUniqueName(Map<String, ?> methods, Class<? extends Annotation> annotation, String name) {
    if(methods.containsKey(name)) {
      throw new IllegalAnnotationUsageException("A second method annotated with the '"+ annotation.getName() +"' annotation and the name '"+ name +"' is found." +
          "If you have defined a name on the annotation then please define a different one. If you haven't defined a name then please define one that is unique.");
    }
  }

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Related Classes of org.milyn.scribe.IllegalAnnotationUsageException

org.milyn.scribe.reflection.AnnotatedDaoRuntimeInfo

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