001// Copyright 2007, 2008, 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 org.apache.tapestry5.model.ComponentModel;
018
019import java.lang.annotation.Documented;
020import static java.lang.annotation.ElementType.TYPE;
021import java.lang.annotation.Retention;
022import static java.lang.annotation.RetentionPolicy.RUNTIME;
023import java.lang.annotation.Target;
024
025import static org.apache.tapestry5.ioc.annotations.AnnotationUseContext.*;
026import org.apache.tapestry5.ioc.annotations.UseWith;
027
028/**
029 * Allows for the specification of per-component meta-data. Meta data can later be accessed via {@link
030 * ComponentModel#getMeta(String)}. Meta data keys are case insensitive. Meta data defined by a subclass overrides meta
031 * data for the super class (where the keys conflict).
032 *
033 * @see org.apache.tapestry5.MetaDataConstants
034 */
035@Target(TYPE)
036@Retention(RUNTIME)
037@Documented
038@UseWith({COMPONENT,MIXIN,PAGE})
039public @interface Meta
040{
041    /**
042     * The meta data as a list of "name=value" elements.
043     */
044    String[] value();
045}