// Copyright 2005 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.annotations; | |
import java.lang.reflect.Method; | |
import org.apache.hivemind.Resource; | |
import org.apache.tapestry.enhance.EnhancementOperation; | |
import org.apache.tapestry.spec.IComponentSpecification; | |
/** | |
* A chain-of-command interface for secondary annotation workers; workers that must execute | |
* <em>after</em> other workers. | |
* | |
* @author Howard M. Lewis Ship | |
*/ | |
public interface SecondaryAnnotationWorker | |
{ | |
/** | |
* Sees if the particular worker can process the method (because it handles an annotation | |
* associated with the method). | |
* | |
* @param method | |
* to check | |
* @return true if the worker should be invoked, false otherwise | |
*/ | |
boolean canEnhance(Method method); | |
/** | |
* Invoked an <em>all</em> workers in the command chain, if <em>any</em> worker returns true | |
* from {@link #canEnhance(Method)}. | |
* | |
* @param op | |
* enhancement operation | |
* @param spec | |
* specification for the component being enhanced | |
* @param method | |
* the method | |
* @param classResource | |
* a resource representing the class; combined with the method a | |
* {@link org.apache.hivemind.Location} can be created | |
*/ | |
void peformEnhancement(EnhancementOperation op, IComponentSpecification spec, | |
Method method, Resource classResource); | |
} |