libcore.reflect.AnnotationFactory java code examples

/**
 * Provides a new annotation instance.
 * @param annotationType the annotation type definition
 * @param elements name-value pairs representing elements of the annotation
 * @return a new annotation instance
 */
public static <A extends Annotation> A createAnnotation(Class<? extends Annotation> annotationType,
                            AnnotationMember[] elements) {
  AnnotationFactory factory = new AnnotationFactory(annotationType, elements);
  return (A) Proxy.newProxyInstance(annotationType.getClassLoader(),
                   new Class[]{annotationType}, factory);
}

  return klazz;
} else if ("toString".equals(name)) {
  return toString();
} else if ("hashCode".equals(name)) {
  return hashCode();
return Boolean.valueOf(equals(args[0]));

/**
 * New instances should not be created directly, use factory method
 * {@link #createAnnotation(Class, AnnotationMember[]) createAnnotation()}
 * instead.
 *
 * @param klzz class defining the annotation type
 * @param values actual element values
 */
private AnnotationFactory(Class<? extends Annotation> klzz, AnnotationMember[] values) {
  klazz = klzz;
  AnnotationMember[] defs = getElementsDescription(klazz);
  if (values == null) {
    elements = defs;
  } else {
    //merge default and actual values
    elements = new AnnotationMember[defs.length];
    next: for (int i = elements.length - 1; i >= 0; i--) {
      for (AnnotationMember val : values) {
        if (val.name.equals(defs[i].name)) {
          elements[i] = val.setDefinition(defs[i]);
          continue next;
        }
      }
      elements[i] = defs[i];
    }
  }
}

  return klazz;
} else if ("toString".equals(name)) {
  return toString();
} else if ("hashCode".equals(name)) {
  return hashCode();
return Boolean.valueOf(equals(args[0]));

AnnotationMember[] defs = getElementsDescription(klazz);
AnnotationMember[] old = elements;
List<AnnotationMember> merged = new ArrayList<AnnotationMember>(defs.length + old.length);

/**
 * Provides a new annotation instance.
 * @param annotationType the annotation type definition
 * @param elements name-value pairs representing elements of the annotation
 * @return a new annotation instance
 */
public static <A extends Annotation> A createAnnotation(Class<? extends Annotation> annotationType,
                            AnnotationMember[] elements) {
  AnnotationFactory factory = new AnnotationFactory(annotationType, elements);
  return (A) Proxy.newProxyInstance(annotationType.getClassLoader(),
                   new Class[]{annotationType}, factory);
}

  return klazz;
} else if ("toString".equals(name)) {
  return toString();
} else if ("hashCode".equals(name)) {
  return hashCode();
return Boolean.valueOf(equals(args[0]));

/**
 * New instances should not be created directly, use factory method
 * {@link #createAnnotation(Class, AnnotationMember[]) createAnnotation()}
 * instead.
 *
 * @param klzz class defining the annotation type
 * @param values actual element values
 */
private AnnotationFactory(Class<? extends Annotation> klzz, AnnotationMember[] values) {
  klazz = klzz;
  AnnotationMember[] defs = getElementsDescription(klazz);
  if (values == null) {
    elements = defs;
  } else {
    //merge default and actual values
    elements = new AnnotationMember[defs.length];
    next: for (int i = elements.length - 1; i >= 0; i--) {
      for (AnnotationMember val : values) {
        if (val.name.equals(defs[i].name)) {
          elements[i] = val.setDefinition(defs[i]);
          continue next;
        }
      }
      elements[i] = defs[i];
    }
  }
}

/**
 * Provides a new annotation instance.
 * @param annotationType the annotation type definition
 * @param elements name-value pairs representing elements of the annotation
 * @return a new annotation instance
 */
public static <A extends Annotation> A createAnnotation(Class<? extends Annotation> annotationType,
                            AnnotationMember[] elements) {
  AnnotationFactory factory = new AnnotationFactory(annotationType, elements);
  return (A) Proxy.newProxyInstance(annotationType.getClassLoader(),
                   new Class[]{annotationType}, factory);
}

  return klazz;
} else if ("toString".equals(name)) {
  return toString();
} else if ("hashCode".equals(name)) {
  return hashCode();
return Boolean.valueOf(equals(args[0]));

/**
 * New instances should not be created directly, use factory method
 * {@link #createAnnotation(Class, AnnotationMember[]) createAnnotation()}
 * instead.
 *
 * @param klzz class defining the annotation type
 * @param values actual element values
 */
private AnnotationFactory(Class<? extends Annotation> klzz, AnnotationMember[] values) {
  klazz = klzz;
  AnnotationMember[] defs = getElementsDescription(klazz);
  if (values == null) {
    elements = defs;
  } else {
    //merge default and actual values
    elements = new AnnotationMember[defs.length];
    next: for (int i = elements.length - 1; i >= 0; i--) {
      for (AnnotationMember val : values) {
        if (val.name.equals(defs[i].name)) {
          elements[i] = val.setDefinition(defs[i]);
          continue next;
        }
      }
      elements[i] = defs[i];
    }
  }
}

/**
 * Provides a new annotation instance.
 * @param annotationType the annotation type definition
 * @param elements name-value pairs representing elements of the annotation
 * @return a new annotation instance
 */
public static <A extends Annotation> A createAnnotation(Class<? extends Annotation> annotationType,
                            AnnotationMember[] elements) {
  AnnotationFactory factory = new AnnotationFactory(annotationType, elements);
  return (A) Proxy.newProxyInstance(annotationType.getClassLoader(),
                   new Class[]{annotationType}, factory);
}

  return klazz;
} else if ("toString".equals(name)) {
  return toString();
} else if ("hashCode".equals(name)) {
  return hashCode();
return Boolean.valueOf(equals(args[0]));

/**
 * New instances should not be created directly, use factory method
 * {@link #createAnnotation(Class, AnnotationMember[]) createAnnotation()}
 * instead.
 *
 * @param klzz class defining the annotation type
 * @param values actual element values
 */
private AnnotationFactory(Class<? extends Annotation> klzz, AnnotationMember[] values) {
  klazz = klzz;
  AnnotationMember[] defs = getElementsDescription(klazz);
  if (values == null) {
    elements = defs;
  } else {
    //merge default and actual values
    elements = new AnnotationMember[defs.length];
    next: for (int i = elements.length - 1; i >= 0; i--) {
      for (AnnotationMember val : values) {
        if (val.name.equals(defs[i].name)) {
          elements[i] = val.setDefinition(defs[i]);
          continue next;
        }
      }
      elements[i] = defs[i];
    }
  }
}

/**
 * Provides a new annotation instance.
 * @param annotationType the annotation type definition
 * @param elements name-value pairs representing elements of the annotation
 * @return a new annotation instance
 */
public static <A extends Annotation> A createAnnotation(Class<? extends Annotation> annotationType,
                            AnnotationMember[] elements) {
  AnnotationFactory factory = new AnnotationFactory(annotationType, elements);
  return (A) Proxy.newProxyInstance(annotationType.getClassLoader(),
                   new Class[]{annotationType}, factory);
}

  return klazz;
} else if ("toString".equals(name)) {
  return toString();
} else if ("hashCode".equals(name)) {
  return hashCode();
return Boolean.valueOf(equals(args[0]));

/**
 * New instances should not be created directly, use factory method
 * {@link #createAnnotation(Class, AnnotationMember[]) createAnnotation()}
 * instead.
 *
 * @param klzz class defining the annotation type
 * @param values actual element values
 */
private AnnotationFactory(Class<? extends Annotation> klzz, AnnotationMember[] values) {
  klazz = klzz;
  AnnotationMember[] defs = getElementsDescription(klazz);
  if (values == null) {
    elements = defs;
  } else {
    //merge default and actual values
    elements = new AnnotationMember[defs.length];
    next: for (int i = elements.length - 1; i >= 0; i--) {
      for (AnnotationMember val : values) {
        if (val.name.equals(defs[i].name)) {
          elements[i] = val.setDefinition(defs[i]);
          continue next;
        }
      }
      elements[i] = defs[i];
    }
  }
}

/**
 * Provides a new annotation instance.
 * @param annotationType the annotation type definition
 * @param elements name-value pairs representing elements of the annotation
 * @return a new annotation instance
 */
public static <A extends Annotation> A createAnnotation(Class<? extends Annotation> annotationType,
                            AnnotationMember[] elements) {
  AnnotationFactory factory = new AnnotationFactory(annotationType, elements);
  return (A) Proxy.newProxyInstance(annotationType.getClassLoader(),
                   new Class[]{annotationType}, factory);
}

  return klazz;
} else if ("toString".equals(name)) {
  return toString();
} else if ("hashCode".equals(name)) {
  return hashCode();
return Boolean.valueOf(equals(args[0]));

/**
 * New instances should not be created directly, use factory method
 * {@link #createAnnotation(Class, AnnotationMember[]) createAnnotation()}
 * instead.
 *
 * @param klzz class defining the annotation type
 * @param values actual element values
 */
private AnnotationFactory(Class<? extends Annotation> klzz, AnnotationMember[] values) {
  klazz = klzz;
  AnnotationMember[] defs = getElementsDescription(klazz);
  if (values == null) {
    elements = defs;
  } else {
    //merge default and actual values
    elements = new AnnotationMember[defs.length];
    next: for (int i = elements.length - 1; i >= 0; i--) {
      for (AnnotationMember val : values) {
        if (val.name.equals(defs[i].name)) {
          elements[i] = val.setDefinition(defs[i]);
          continue next;
        }
      }
      elements[i] = defs[i];
    }
  }
}

Javadoc

The annotation implementation based on dynamically generated proxy instances. It conforms to all requirements stated in public APIs, see in particular java.lang.reflect.AnnotatedElementand java.lang.annotation.Annotation. Namely, annotation instances are immutable and serializable; they provide conforming access to annotation member values and required implementations of methods declared in Annotation interface.

Most used methods

<init>
New instances should not be created directly, use factory method #createAnnotation(Class,AnnotationM
equals
Returns true if the specified object represents the same annotation instance. That is, if it impleme
getElementsDescription
Reflects specified annotation type and returns an array of member element definitions with default v
hashCode
Returns a hash code composed as a sum of hash codes of member elements, including elements with defa
toString
Provides detailed description of this annotation instance, including all member name-values pairs.

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