| // Copyright 2007 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.internal.services; |
| |
| import org.apache.tapestry.ComponentResources; |
| |
| /** |
| * A kind of callback that can easily be injected into a transformed class to perform complex work. |
| * <p/> |
| * These callbacks are often injected into a transformed component class via {@link |
| * org.apache.tapestry.services.ClassTransformation#addInjectedField(Class, String, Object)}. Bear in mind that such |
| * callbacks must be <em>threadsafe</em>, since every instance of such a class will share a single instance of the |
| * operation. |
| */ |
| public interface ComponentResourcesOperation |
| { |
| /** |
| * Perform some operation that requires the components' resources. |
| */ |
| void perform(ComponentResources resources); |
| } |