001    // Copyright 2007 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.annotations;
016    
017    import java.lang.annotation.*;
018    
019    
020    /**
021     * Used to automatically include a CSS stylesheet when rendering the page.  The value is an asset reference; relative
022     * paths are relative to the Java class, or a "context:" prefix can be used to reference resources in the web
023     * application.
024     * <p/>
025     * This saves the work of injecting the asset into a field and injecting the PageRenderSupport environmental service,
026     * and invoking the method.
027     * <p/>
028     * Does not support setting a media type; if that is required. use {@link org.apache.tapestry5.RenderSupport#addStylesheetLink(org.apache.tapestry5.Asset,
029     * String)} directly.
030     *
031     * @see org.apache.tapestry5.annotations.Path
032     * @see org.apache.tapestry5.annotations.IncludeJavaScriptLibrary
033     */
034    @Target({ ElementType.TYPE })
035    @Retention(RetentionPolicy.RUNTIME)
036    @Documented
037    public @interface IncludeStylesheet
038    {
039        /**
040         * One or more paths to be injected. Symbols in the path will be expanded. The stylesheets may be localized.
041         */
042        String[] value();
043    }