| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| // |
| // This source code implements specifications defined by the Java |
| // Community Process. In order to remain compliant with the specification |
| // DO NOT add/change/or delete method signatures! |
| // |
| |
| package javax.persistence.spi; |
| |
| import java.security.ProtectionDomain; |
| import java.lang.instrument.IllegalClassFormatException; |
| |
| /** |
| * @version $Rev$ $Date$ |
| */ |
| public interface ClassTransformer { |
| /** |
| * Invoked when a class is being loaded or redefined. The implementation of this |
| * method may transform the supplied class file and return a new replacement class |
| * file. |
| * |
| * @param loader The defining loader of the class to be transformed, may be null if |
| * the bootstrap loader |
| * @param className The name of the class in the internal form of fully qualified |
| * class and interface names |
| * @param classBeingRedefined If this is a redefine, the class being redefined, |
| * otherwise null |
| * @param protectionDomain The protection domain of the class being defined or |
| * redefined |
| * @param classfileBuffer The input byte buffer in class file format - must not be |
| * modified |
| * @return A well-formed class file buffer (the result of the transform), or null if |
| * no transform is performed |
| * @throws java.lang.instrument.IllegalClassFormatException |
| * If the input does not represent a well-formed |
| * class file |
| */ |
| byte[] transform( |
| ClassLoader loader, |
| String className, |
| Class<?> classBeingRedefined, |
| ProtectionDomain protectionDomain, |
| byte[] classfileBuffer) throws IllegalClassFormatException; |
| |
| } |