001    // Copyright 2004, 2005 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.tapestry;
016    
017    /**
018     * Constant values used inside Tapestry.
019     * 
020     * @author Howard Lewis Ship
021     * @since 4.0
022     */
023    public final class Constants
024    {
025    
026        /**
027         * Key used to store and locate an
028         * {@link org.apache.tapestry.services.Infrastructure} service instance as a
029         * request attribute.
030         */
031        public static final String INFRASTRUCTURE_KEY = "org.apache.tapestry.Infrastructure";
032    }