| // 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.engine; |
| |
| import java.util.Locale; |
| |
| import org.apache.tapestry.IComponent; |
| import org.apache.tapestry.IRequestCycle; |
| import org.apache.tapestry.parse.ComponentTemplate; |
| |
| /** |
| * Null implementation of {@link org.apache.tapestry.engine.ITemplateSourceDelegate}. |
| * |
| * @author Howard Lewis Ship |
| * @version $Id$ |
| * @since 3.0 |
| * |
| **/ |
| |
| public class NullTemplateSourceDelegate implements ITemplateSourceDelegate |
| { |
| private static NullTemplateSourceDelegate _shared; |
| |
| /** |
| * Returns a shared instance of NullTemplateSourceDelegate. |
| * |
| **/ |
| |
| public static NullTemplateSourceDelegate getSharedInstance() |
| { |
| if (_shared == null) |
| _shared = new NullTemplateSourceDelegate(); |
| |
| return _shared; |
| } |
| |
| /** |
| * Simply returns null. |
| * |
| **/ |
| |
| public ComponentTemplate findTemplate(IRequestCycle cycle, IComponent component, Locale locale) |
| { |
| return null; |
| } |
| |
| } |