1 /* 2 * Copyright (c) 2011, 2019, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package javax.lang.model.util; 27 28 import javax.annotation.processing.SupportedSourceVersion; 29 import javax.lang.model.SourceVersion; 30 import javax.lang.model.element.ModuleElement; 31 import static javax.lang.model.SourceVersion.*; 32 33 /** 34 * A simple visitor of program elements with default behavior 35 * appropriate for source versions {@link SourceVersion#RELEASE_9 36 * RELEASE_9} through {@link SourceVersion#RELEASE_14 RELEASE_14}. 37 * 38 * Visit methods corresponding to {@code RELEASE_9} and earlier 39 * language constructs call {@link #defaultAction defaultAction}, 40 * passing their arguments to {@code defaultAction}'s corresponding 41 * parameters. 42 * 43 * <p> Methods in this class may be overridden subject to their 44 * general contract. Note that annotating methods in concrete 45 * subclasses with {@link java.lang.Override @Override} will help 46 * ensure that methods are overridden as intended. 47 * 48 * <p> <b>WARNING:</b> The {@code ElementVisitor} interface 49 * implemented by this class may have methods added to it in the 50 * future to accommodate new, currently unknown, language structures 51 * added to future versions of the Java™ programming language. 52 * Therefore, methods whose names begin with {@code "visit"} may be 53 * added to this class in the future; to avoid incompatibilities, 54 * classes which extend this class should not declare any instance 55 * methods with names beginning with {@code "visit"}. 56 * 57 * <p>When such a new visit method is added, the default 58 * implementation in this class will be to call the {@link 59 * #visitUnknown visitUnknown} method. A new simple element visitor 60 * class will also be introduced to correspond to the new language 61 * level; this visitor will have different default behavior for the 62 * visit method in question. When the new visitor is introduced, all 63 * or portions of this visitor may be deprecated. 64 * 65 * @param <R> the return type of this visitor's methods. Use {@code Void} 66 * for visitors that do not need to return results. 67 * @param <P> the type of the additional parameter to this visitor's methods. Use {@code Void} 68 * for visitors that do not need an additional parameter. 69 * 70 * @see SimpleElementVisitor6 71 * @see SimpleElementVisitor7 72 * @see SimpleElementVisitor8 73 * @see SimpleElementVisitor14 74 * @since 9 75 * @spec JPMS 76 */ 77 @SupportedSourceVersion(RELEASE_14) 78 public class SimpleElementVisitor9<R, P> extends SimpleElementVisitor8<R, P> { 79 /** 80 * Constructor for concrete subclasses; uses {@code null} for the 81 * default value. 82 */ 83 protected SimpleElementVisitor9(){ 84 super(null); 85 } 86 87 /** 88 * Constructor for concrete subclasses; uses the argument for the 89 * default value. | 1 /* 2 * Copyright (c) 2011, 2020, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package javax.lang.model.util; 27 28 import javax.annotation.processing.SupportedSourceVersion; 29 import javax.lang.model.SourceVersion; 30 import javax.lang.model.element.ModuleElement; 31 import static javax.lang.model.SourceVersion.*; 32 33 /** 34 * A simple visitor of program elements with default behavior 35 * appropriate for source versions {@link SourceVersion#RELEASE_9 36 * RELEASE_9} through {@link SourceVersion#RELEASE_14 RELEASE_14}. 37 * 38 * Visit methods corresponding to {@code RELEASE_9} and earlier 39 * language constructs call {@link #defaultAction defaultAction}, 40 * passing their arguments to {@code defaultAction}'s corresponding 41 * parameters. 42 * 43 * @apiNote 44 * Methods in this class may be overridden subject to their general 45 * contract. 46 * 47 * @param <R> the return type of this visitor's methods. Use {@code Void} 48 * for visitors that do not need to return results. 49 * @param <P> the type of the additional parameter to this visitor's methods. Use {@code Void} 50 * for visitors that do not need an additional parameter. 51 * 52 * @see <a href="SimpleElementVisitor6.html#note_for_subclasses"> 53 * <strong>Compatibility note for subclasses</strong></a> 54 * @see SimpleElementVisitor6 55 * @see SimpleElementVisitor7 56 * @see SimpleElementVisitor8 57 * @see SimpleElementVisitor14 58 * @since 9 59 * @spec JPMS 60 */ 61 @SupportedSourceVersion(RELEASE_14) 62 public class SimpleElementVisitor9<R, P> extends SimpleElementVisitor8<R, P> { 63 /** 64 * Constructor for concrete subclasses; uses {@code null} for the 65 * default value. 66 */ 67 protected SimpleElementVisitor9(){ 68 super(null); 69 } 70 71 /** 72 * Constructor for concrete subclasses; uses the argument for the 73 * default value. |