| // 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.resolver; |
| |
| import org.apache.tapestry.INamespace; |
| import org.apache.tapestry.IRequestCycle; |
| import org.apache.tapestry.spec.IComponentSpecification; |
| |
| /** |
| * Stand-in class used when the application fails to specify an actual delegate. |
| * |
| * @author Howard Lewis Ship |
| * @version $Id$ |
| * @since 3.0 |
| * |
| **/ |
| |
| public class NullSpecificationResolverDelegate implements ISpecificationResolverDelegate |
| { |
| private static NullSpecificationResolverDelegate _shared; |
| |
| public static NullSpecificationResolverDelegate getSharedInstance() |
| { |
| if (_shared == null) |
| _shared = new NullSpecificationResolverDelegate(); |
| |
| return _shared; |
| } |
| |
| /** |
| * Returns null. |
| * |
| **/ |
| |
| public IComponentSpecification findPageSpecification( |
| IRequestCycle cycle, |
| INamespace namespace, |
| String simplePageName) |
| { |
| return null; |
| } |
| |
| /** |
| * Returns null. |
| * |
| **/ |
| |
| public IComponentSpecification findComponentSpecification( |
| IRequestCycle cycle, |
| INamespace namespace, |
| String type) |
| { |
| return null; |
| } |
| |
| } |