Exemplo n.º 1
0
  /**
   * Method for resolving member method information: aggregating all non-static methods and
   * combining annotations (to implement method-annotation inheritance)
   *
   * @param collectIgnored Whether to collect list of ignored methods for later retrieval
   */
  public void resolveMemberMethods(MethodFilter methodFilter, boolean collectIgnored) {
    _memberMethods = new AnnotatedMethodMap();
    AnnotatedMethodMap mixins = new AnnotatedMethodMap();
    // first: methods from the class itself
    _addMemberMethods(_class, methodFilter, _memberMethods, _primaryMixIn, mixins);

    // and then augment these with annotations from super-types:
    for (Class<?> cls : _superTypes) {
      Class<?> mixin = (_mixInResolver == null) ? null : _mixInResolver.findMixInClassFor(cls);
      _addMemberMethods(cls, methodFilter, _memberMethods, mixin, mixins);
    }
    // Special case: mix-ins for Object.class? (to apply to ALL classes)
    if (_mixInResolver != null) {
      Class<?> mixin = _mixInResolver.findMixInClassFor(Object.class);
      if (mixin != null) {
        _addMethodMixIns(methodFilter, _memberMethods, mixin, mixins);
      }
    }

    /* Any unmatched mix-ins? Most likely error cases (not matching
     * any method); but there is one possible real use case:
     * exposing Object#hashCode (alas, Object#getClass can NOT be
     * exposed, see [JACKSON-140])
     */
    if (!mixins.isEmpty()) {
      Iterator<AnnotatedMethod> it = mixins.iterator();
      while (it.hasNext()) {
        AnnotatedMethod mixIn = it.next();
        try {
          Method m = Object.class.getDeclaredMethod(mixIn.getName(), mixIn.getParameterClasses());
          if (m != null) {
            AnnotatedMethod am = _constructMethod(m);
            _addMixOvers(mixIn.getAnnotated(), am, false);
            _memberMethods.add(am);
          }
        } catch (Exception e) {
        }
      }
    }

    /* And last but not least: let's remove all methods that are
     * deemed to be ignorable after all annotations have been
     * properly collapsed.
     */
    Iterator<AnnotatedMethod> it = _memberMethods.iterator();
    while (it.hasNext()) {
      AnnotatedMethod am = it.next();
      if (_annotationIntrospector.isIgnorableMethod(am)) {
        it.remove();
        if (collectIgnored) {
          _ignoredMethods = ArrayBuilders.addToList(_ignoredMethods, am);
        }
      }
    }
  }
 /**
  * Method that can be called to find if introspected class declares a static "valueOf" factory
  * method that returns an instance of introspected type, given one of acceptable types.
  *
  * @param expArgTypes Types that the matching single argument factory method can take: will also
  *     accept super types of these types (ie. arg just has to be assignable from expArgType)
  */
 public Method findFactoryMethod(Class<?>... expArgTypes) {
   // So, of all single-arg static methods:
   for (AnnotatedMethod am : _classInfo.getStaticMethods()) {
     if (isFactoryMethod(am)) {
       // And must take one of expected arg types (or supertype)
       Class<?> actualArgType = am.getParameterClass(0);
       for (Class<?> expArgType : expArgTypes) {
         // And one that matches what we would pass in
         if (actualArgType.isAssignableFrom(expArgType)) {
           return am.getAnnotated();
         }
       }
     }
   }
   return null;
 }
Exemplo n.º 3
0
  protected void _addMemberMethods(
      Class<?> cls,
      MethodFilter methodFilter,
      AnnotatedMethodMap methods,
      Class<?> mixInCls,
      AnnotatedMethodMap mixIns) {
    // first, mixIns, since they have higher priority then class methods
    if (mixInCls != null) {
      _addMethodMixIns(methodFilter, methods, mixInCls, mixIns);
    }

    if (cls == null) { // just so caller need not check when passing super-class
      return;
    }
    // then methods from the class itself
    for (Method m : cls.getDeclaredMethods()) {
      if (!_isIncludableMethod(m, methodFilter)) {
        continue;
      }
      AnnotatedMethod old = methods.find(m);
      if (old == null) {
        AnnotatedMethod newM = _constructMethod(m);
        methods.add(newM);
        // Ok, but is there a mix-in to connect now?
        old = mixIns.remove(m);
        if (old != null) {
          _addMixOvers(old.getAnnotated(), newM, false);
        }
      } else {
        /* If sub-class already has the method, we only want to augment
         * annotations with entries that are not masked by sub-class.
         */
        _addMixUnders(m, old);

        /* 06-Jan-2010, tatu: [JACKSON-450] Except that if method we saw first is
         *   from an interface, and we now find a non-interface definition, we should
         *   use this method, but with combination of annotations.
         *   This helps (or rather, is essential) with JAXB annotations and
         *   may also result in faster method calls (interface calls are slightly
         *   costlier than regular method calls)
         */
        if (old.getDeclaringClass().isInterface() && !m.getDeclaringClass().isInterface()) {
          methods.add(old.withMethod(m));
        }
      }
    }
  }