| // Copyright 2004 The Apache Software Foundation |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package org.apache.tapestry.binding; |
| |
| import org.apache.tapestry.IComponent; |
| import org.apache.tapestry.ILocation; |
| |
| /** |
| * A binding that connects directly to a localized string for |
| * a component. |
| * |
| * @see IComponent#getString(String) |
| * |
| * @author Howard Lewis Ship |
| * @version $Id$ |
| * @since 2.0.4 |
| * |
| **/ |
| |
| public class StringBinding extends AbstractBinding |
| { |
| private IComponent _component; |
| private String _key; |
| |
| public StringBinding(IComponent component, String key, ILocation location) |
| { |
| super(location); |
| |
| _component = component; |
| _key = key; |
| } |
| |
| public IComponent getComponent() |
| { |
| return _component; |
| } |
| |
| public String getKey() |
| { |
| return _key; |
| } |
| |
| /** |
| * Accesses the specified localized string. Never returns null. |
| * |
| **/ |
| |
| public Object getObject() |
| { |
| return _component.getMessages().getMessage(_key); |
| } |
| |
| /** |
| * Returns true. Localized component strings are |
| * read-only. |
| * |
| **/ |
| |
| public boolean isInvariant() |
| { |
| return true; |
| } |
| |
| public String toString() |
| { |
| StringBuffer buffer = new StringBuffer("StringBinding"); |
| buffer.append('['); |
| buffer.append(_component.getExtendedId()); |
| buffer.append(' '); |
| buffer.append(_key); |
| buffer.append(']'); |
| |
| return buffer.toString(); |
| } |
| } |