- /*
- * Javassist, a Java-bytecode translator toolkit.
- * Copyright (C) 1999- Shigeru Chiba. All Rights Reserved.
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. Alternatively, the contents of this file may be used under
- * the terms of the GNU Lesser General Public License Version 2.1 or later,
- * or the Apache License Version 2.0.
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- */
-
- package javassist;
-
- /**
- * An observer of <code>Loader</code>.
- * The users can define a class implementing this
- * interface and attach an instance of that class to a
- * <code>Loader</code> object so that it can translate a class file
- * when the class file is loaded into the JVM.
- *
- * @see Loader#addTranslator(ClassPool, Translator)
- */
- public interface Translator {
- /**
- * Is invoked by a <code>Loader</code> for initialization
- * when the object is attached to the <code>Loader</code> object.
- * This method can be used for getting (for caching) some
- * <code>CtClass</code> objects that will be accessed
- * in <code>onLoad()</code> in <code>Translator</code>.
- *
- * @param pool the <code>ClassPool</code> that this translator
- * should use.
- * @see Loader
- * @throws NotFoundException if a <code>CtClass</code> cannot be found.
- * @throws CannotCompileException if the initialization by this method
- * fails.
- */
- void start(ClassPool pool)
- throws NotFoundException, CannotCompileException;
-
- /**
- * Is invoked by a <code>Loader</code> for notifying that
- * a class is loaded. The <code>Loader</code> calls
- *
- * <pre>
- * pool.get(classname).toBytecode()</pre>
- *
- * to read the class file after <code>onLoad()</code> returns.
- *
- * <p><code>classname</code> may be the name of a class
- * that has not been created yet.
- * If so, <code>onLoad()</code> must create that class so that
- * the <code>Loader</code> can read it after <code>onLoad()</code>
- * returns.
- *
- * @param pool the <code>ClassPool</code> that this translator
- * should use.
- * @param classname the name of the class being loaded.
- * @see Loader
- * @throws NotFoundException if a <code>CtClass</code> cannot be found.
- * @throws CannotCompileException if the code transformation
- * by this method fails.
- */
- void onLoad(ClassPool pool, String classname)
- throws NotFoundException, CannotCompileException;
- }
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