1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/share/classes/javax/lang/model/util/SimpleAnnotationValueVisitor7.java Wed Apr 27 01:34:52 2016 +0800 1.3 @@ -0,0 +1,96 @@ 1.4 +/* 1.5 + * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. 1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1.7 + * 1.8 + * This code is free software; you can redistribute it and/or modify it 1.9 + * under the terms of the GNU General Public License version 2 only, as 1.10 + * published by the Free Software Foundation. Oracle designates this 1.11 + * particular file as subject to the "Classpath" exception as provided 1.12 + * by Oracle in the LICENSE file that accompanied this code. 1.13 + * 1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT 1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1.17 + * version 2 for more details (a copy is included in the LICENSE file that 1.18 + * accompanied this code). 1.19 + * 1.20 + * You should have received a copy of the GNU General Public License version 1.21 + * 2 along with this work; if not, write to the Free Software Foundation, 1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1.23 + * 1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 1.25 + * or visit www.oracle.com if you need additional information or have any 1.26 + * questions. 1.27 + */ 1.28 + 1.29 +package javax.lang.model.util; 1.30 + 1.31 +import javax.annotation.processing.SupportedSourceVersion; 1.32 +import javax.lang.model.SourceVersion; 1.33 +import static javax.lang.model.SourceVersion.*; 1.34 + 1.35 +/** 1.36 + * A simple visitor for annotation values with default behavior 1.37 + * appropriate for the {@link SourceVersion#RELEASE_7 RELEASE_7} 1.38 + * source version. Visit methods call {@link #defaultAction 1.39 + * defaultAction} passing their arguments to {@code defaultAction}'s 1.40 + * corresponding parameters. 1.41 + * 1.42 + * <p> Methods in this class may be overridden subject to their 1.43 + * general contract. Note that annotating methods in concrete 1.44 + * subclasses with {@link java.lang.Override @Override} will help 1.45 + * ensure that methods are overridden as intended. 1.46 + * 1.47 + * <p> <b>WARNING:</b> The {@code AnnotationValueVisitor} interface 1.48 + * implemented by this class may have methods added to it in the 1.49 + * future to accommodate new, currently unknown, language structures 1.50 + * added to future versions of the Java™ programming language. 1.51 + * Therefore, methods whose names begin with {@code "visit"} may be 1.52 + * added to this class in the future; to avoid incompatibilities, 1.53 + * classes which extend this class should not declare any instance 1.54 + * methods with names beginning with {@code "visit"}. 1.55 + * 1.56 + * <p>When such a new visit method is added, the default 1.57 + * implementation in this class will be to call the {@link 1.58 + * #visitUnknown visitUnknown} method. A new simple annotation 1.59 + * value visitor class will also be introduced to correspond to the 1.60 + * new language level; this visitor will have different default 1.61 + * behavior for the visit method in question. When the new visitor is 1.62 + * introduced, all or portions of this visitor may be deprecated. 1.63 + * 1.64 + * <p>Note that adding a default implementation of a new visit method 1.65 + * in a visitor class will occur instead of adding a <em>default 1.66 + * method</em> directly in the visitor interface since a Java SE 8 1.67 + * language feature cannot be used to this version of the API since 1.68 + * this version is required to be runnable on Java SE 7 1.69 + * implementations. Future versions of the API that are only required 1.70 + * to run on Java SE 8 and later may take advantage of default methods 1.71 + * in this situation. 1.72 + * 1.73 + * @param <R> the return type of this visitor's methods 1.74 + * @param <P> the type of the additional parameter to this visitor's methods. 1.75 + * 1.76 + * @see SimpleAnnotationValueVisitor6 1.77 + * @see SimpleAnnotationValueVisitor8 1.78 + * @since 1.7 1.79 + */ 1.80 +@SupportedSourceVersion(RELEASE_7) 1.81 +public class SimpleAnnotationValueVisitor7<R, P> extends SimpleAnnotationValueVisitor6<R, P> { 1.82 + /** 1.83 + * Constructor for concrete subclasses; uses {@code null} for the 1.84 + * default value. 1.85 + */ 1.86 + protected SimpleAnnotationValueVisitor7() { 1.87 + super(null); 1.88 + } 1.89 + 1.90 + /** 1.91 + * Constructor for concrete subclasses; uses the argument for the 1.92 + * default value. 1.93 + * 1.94 + * @param defaultValue the value to assign to {@link #DEFAULT_VALUE} 1.95 + */ 1.96 + protected SimpleAnnotationValueVisitor7(R defaultValue) { 1.97 + super(defaultValue); 1.98 + } 1.99 +}