001// Copyright 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
015package org.apache.tapestry5.internal.services.javascript;
016
017import java.util.List;
018
019import org.apache.tapestry5.SymbolConstants;
020import org.apache.tapestry5.services.javascript.JavaScriptStack;
021import org.apache.tapestry5.services.javascript.JavaScriptStackSource;
022import org.apache.tapestry5.services.javascript.JavaScriptSupport;
023
024/**
025 * Used to generate a list of asset URL paths for the JavaScript libraries
026 * of a JavaScript stack. This encapsulates much of the logic of {@linkplain SymbolConstants#COMBINE_SCRIPTS script
027 * aggregation}.
028 * 
029 * @since 5.2.0
030 * @see JavaScriptStack
031 * @see JavaScriptStackSource
032 * @see JavaScriptSupport
033 */
034public interface JavaScriptStackPathConstructor
035{
036    /**
037     * Given a stack, by name, return a list of URL paths for the individual libraqries in the stack.
038     * If scripts are combined, this will be a single (combined) URL.
039     * 
040     * @param stackName
041     *            name of {@link JavaScriptStack}
042     */
043    List<String> constructPathsForJavaScriptStack(String stackName);
044}