001    // Copyright 2007, 2010 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.services;
016    
017    import static java.lang.annotation.RetentionPolicy.RUNTIME;
018    
019    import java.lang.annotation.Documented;
020    import java.lang.annotation.ElementType;
021    import java.lang.annotation.Retention;
022    import java.lang.annotation.Target;
023    
024    /**
025     * Marker annotation to select the correct {@link AssetFactory} for injection. The marked interface will provide assets
026     * located in the web application context.
027     */
028    @Target(
029            { ElementType.PARAMETER, ElementType.FIELD, ElementType.METHOD })
030    @Retention(RUNTIME)
031    @Documented
032    public @interface ContextProvider
033    {
034    
035    }