/*

  * Copyright 2004 Chris Nelson

  *

  * 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.trails.link;

 import org.apache.hivemind.util.Defense;

 import org.apache.tapestry.annotations.InjectObject;

 import org.apache.tapestry.annotations.Parameter;

 import org.apache.tapestry.annotations.ComponentClass;

 import org.trails.util.Utils;

 import org.trails.descriptor.DescriptorService;

 import org.trails.descriptor.IClassDescriptor;

 @ComponentClass

 public abstract class ModelLink extends TrailsLink

 {

         @Parameter(required = true)

         public abstract Object getModel();

         public IClassDescriptor getClassDescriptor()

         {

                 Defense.notNull(getModel(), "model");

                 return getDescriptorService().getClassDescriptor(Utils.checkForCGLIB(getModel().getClass()));

         }

         @InjectObject("spring:descriptorService")

         public abstract DescriptorService getDescriptorService();

 }