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    
015    package org.apache.tapestry5.services.javascript;
016    
017    import java.util.List;
018    
019    import org.apache.tapestry5.ioc.annotations.UsesMappedConfiguration;
020    import org.apache.tapestry5.ioc.util.UnknownValueException;
021    
022    /**
023     * Manages the available {@link JavaScriptStack}s, each of which has a unique name.
024     * 
025     * @since 5.2.0
026     */
027    @UsesMappedConfiguration(JavaScriptStack.class)
028    public interface JavaScriptStackSource
029    {
030        /**
031         * Gets a stack by name (ignoring case).
032         * 
033         * @return named stack
034         * @throws UnknownValueException
035         *             if no such stack
036         */
037        JavaScriptStack getStack(String name);
038    
039        /**
040         * Returns the names of all stacks, in sorted order.
041         * 
042         * @since 5.2.1
043         */
044        List<String> getStackNames();
045    }