1 /* 2 * Copyright (c) 2011, Oracle and/or its affiliates. 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.api.replacements; 24 25 import java.lang.annotation.ElementType; 26 import java.lang.annotation.Retention; 27 import java.lang.annotation.RetentionPolicy; 28 import java.lang.annotation.Target; 29 30 /** 31 * Denotes a class that substitutes methods of another specified class. The substitute methods are 32 * exactly those annotated by {@link MethodSubstitution}. 33 */ 34 @Retention(RetentionPolicy.RUNTIME) 35 @Target(ElementType.TYPE) 36 public @interface ClassSubstitution { 37 38 /** 39 * Specifies the original class. 40 * <p> 41 * If the default value is specified for this element, then a non-default value must be given 42 * for the {@link #className()} element. 43 */ 44 Class<?> value() default ClassSubstitution.class; 45 46 /** 47 * Specifies the original class or classes if a single class is being used for multiple 48 * substitutions. 49 * <p> 50 * This method is provided for cases where the original class is not accessible (according to 51 * Java language access control rules). 52 * <p> 53 * If the default value is specified for this element, then a non-default value must be given 54 * for the {@link #value()} element. 55 */ 56 String[] className() default {}; 57 58 /** 59 * Determines if the substitutions are for classes that may not be part of the runtime. 60 * Substitutions for such classes are omitted if the original classes cannot be found. 61 */ 62 boolean optional() default false; 63 }