    001// Copyright 2006, 2009 The Apache Software Foundation
    002//
    003// Licensed under the Apache License, Version 2.0 (the "License");
    004// you may not use this file except in compliance with the License.
    005// You may obtain a copy of the License at
    006//
    007//     http://www.apache.org/licenses/LICENSE-2.0
    008//
    009// Unless required by applicable law or agreed to in writing, software
    010// distributed under the License is distributed on an "AS IS" BASIS,
    011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012// See the License for the specific language governing permissions and
    013// limitations under the License.
    014
    015package org.apache.tapestry5.annotations;
    016
    017import java.lang.annotation.Documented;
    018import static java.lang.annotation.ElementType.FIELD;
    019import java.lang.annotation.Retention;
    020import static java.lang.annotation.RetentionPolicy.RUNTIME;
    021import java.lang.annotation.Target;
    022
    023import static org.apache.tapestry5.ioc.annotations.AnnotationUseContext.COMPONENT;
    024import org.apache.tapestry5.ioc.annotations.UseWith;
    025
    026/**
    027 * Used to attach one ore more instance mixin to an embedded component. Each mixin is specified in terms of a logical
    028 * mixin type name. This annotation is only recognized when used in conjuction with the {@link Component} annotation.
    029 *
    030 * @see MixinClasses
    031 */
    032@Target(FIELD)
    033@Documented
    034@Retention(RUNTIME)
    035@UseWith(COMPONENT)
    036public @interface Mixins
    037{
    038
    039    /**
    040     * One or more mixin type names and optional constraints, from which actual mixin class names can be resolved.
    041     * For specifying constraints, do:
    042     * mixinname::constraint1;constraint2
    043     * For instance:
    044     * mixina::before:mixinb;after:mixinc;after:mixind
    045     */
    046    String[] value();
    047}