001    //  Copyright 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    
015    package org.apache.tapestry5.ioc.annotations;
016    
017    import java.lang.annotation.*;
018    
019    
020    /**
021     * A documentation-only interface placed on service interfaces for services which have an {@linkplain
022     * org.apache.tapestry5.ioc.Configuration unordered configuration}, to identify the type of contribution.
023     */
024    @Target(ElementType.TYPE)
025    @Retention(RetentionPolicy.CLASS)
026    @Documented
027    @UseWith(AnnotationUseContext.SERVICE)
028    public @interface UsesConfiguration
029    {
030        /**
031         * The type of object which may be contributed into the service's configuration.
032         */
033        Class value();
034    }