001// Copyright 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
015package org.apache.tapestry.binding;
016
017/**
018 * Constant values related to bindings.
019 * 
020 * @author Howard M. Lewis Ship
021 * @since 4.0
022 */
023public class BindingConstants
024{
025    /**
026     * Prefix used when the value should be interpreted as an OGNL expression.
027     */
028
029    public static final String OGNL_PREFIX = "ognl";
030
031    /**
032     * Prefix used when the value should be interpeted as a key for a localized message (of the
033     * component's message catalog).
034     */
035    public static final String MESSAGE_PREFIX = "message";
036    
037    /**
038     * Prefix used to ensure that the value is interpreted as a literal
039     * string.
040     * 
041     */
042    
043    public static final String LITERAL_PREFIX = "literal";
044}