J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2006 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package java.lang.instrument; |
| 27 | |
| 28 | /* |
| 29 | * Copyright 2003 Wily Technology, Inc. |
| 30 | */ |
| 31 | |
| 32 | /** |
| 33 | * This class serves as a parameter block to the <code>Instrumentation.redefineClasses</code> method. |
| 34 | * Serves to bind the <code>Class</code> that needs redefining together with the new class file bytes. |
| 35 | * |
| 36 | * @see java.lang.instrument.Instrumentation#redefineClasses |
| 37 | * @since 1.5 |
| 38 | */ |
| 39 | public final class ClassDefinition { |
| 40 | /** |
| 41 | * The class to redefine |
| 42 | */ |
| 43 | private final Class mClass; |
| 44 | |
| 45 | /** |
| 46 | * The replacement class file bytes |
| 47 | */ |
| 48 | private final byte[] mClassFile; |
| 49 | |
| 50 | /** |
| 51 | * Creates a new <code>ClassDefinition</code> binding using the supplied |
| 52 | * class and class file bytes. Does not copy the supplied buffer, just captures a reference to it. |
| 53 | * |
| 54 | * @param theClass the <code>Class</code> that needs redefining |
| 55 | * @param theClassFile the new class file bytes |
| 56 | * |
| 57 | * @throws java.lang.NullPointerException if the supplied class or array is <code>null</code>. |
| 58 | */ |
| 59 | public |
| 60 | ClassDefinition( Class<?> theClass, |
| 61 | byte[] theClassFile) { |
| 62 | if (theClass == null || theClassFile == null) { |
| 63 | throw new NullPointerException(); |
| 64 | } |
| 65 | mClass = theClass; |
| 66 | mClassFile = theClassFile; |
| 67 | } |
| 68 | |
| 69 | /** |
| 70 | * Returns the class. |
| 71 | * |
| 72 | * @return the <code>Class</code> object referred to. |
| 73 | */ |
| 74 | public Class<?> |
| 75 | getDefinitionClass() { |
| 76 | return mClass; |
| 77 | } |
| 78 | |
| 79 | /** |
| 80 | * Returns the array of bytes that contains the new class file. |
| 81 | * |
| 82 | * @return the class file bytes. |
| 83 | */ |
| 84 | public byte[] |
| 85 | getDefinitionClassFile() { |
| 86 | return mClassFile; |
| 87 | } |
| 88 | } |