// Copyright 2006 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.tapestry5.ioc; | |
/** | |
* A service decorator is derived from a {@link org.apache.tapestry5.ioc.def.DecoratorDef} and is responsible for | |
* building an interceptor around an existing implementation (called the "delegate"). | |
*/ | |
public interface ServiceDecorator | |
{ | |
/** | |
* Creates a new interceptor object implementing the same service interface as the delegate object. | |
* | |
* @param delegate an existing object implementing the service interface. | |
* @return a new object implementing the same service interface, or delegate or null if the decorator chooses not to | |
* create a new interceptor. | |
*/ | |
public Object createInterceptor(Object delegate); | |
} |