001    // Copyright 2011 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    /**
018     * A contribution to an extensible {@link JavaScriptStack}. Such a stack is created in terms of all the contributions.
019     *
020     * @see ExtensibleJavaScriptStack
021     * @since 5.3
022     */
023    public class StackExtension
024    {
025        /**
026         * The type of extension.
027         */
028        public final StackExtensionType type;
029    
030        /**
031         * The value contributed; will have symbols expanded, then be converted to the appropriate type.
032         */
033        public final String value;
034    
035        public StackExtension(StackExtensionType type, String value)
036        {
037            this.type = type;
038            this.value = value;
039        }
040    
041        @Override
042        public String toString()
043        {
044            return String.format("StackExtension[%s %s]", type.name(), value);
045        }
046    
047    }