Mercurial > jdk8-mips64-public > langtools / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/classes/javax/lang/model/util/SimpleElementVisitor8.java	Tue Jul 05 16:37:24 2011 -0700
     1.3 @@ -0,0 +1,94 @@
     1.4 +/*
     1.5 + * Copyright (c) 2011, 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.lang.model.element.*;
    1.32 +import javax.annotation.processing.SupportedSourceVersion;
    1.33 +import static javax.lang.model.element.ElementKind.*;
    1.34 +import javax.lang.model.SourceVersion;
    1.35 +import static javax.lang.model.SourceVersion.*;
    1.36 +
    1.37 +/**
    1.38 + * A simple visitor of program elements with default behavior
    1.39 + * appropriate for the {@link SourceVersion#RELEASE_8 RELEASE_8}
    1.40 + * source version.
    1.41 + *
    1.42 + * Visit methods corresponding to {@code RELEASE_7} and earlier
    1.43 + * language constructs call {@link #defaultAction defaultAction},
    1.44 + * passing their arguments to {@code defaultAction}'s corresponding
    1.45 + * parameters.
    1.46 + *
    1.47 + * <p> Methods in this class may be overridden subject to their
    1.48 + * general contract.  Note that annotating methods in concrete
    1.49 + * subclasses with {@link java.lang.Override @Override} will help
    1.50 + * ensure that methods are overridden as intended.
    1.51 + *
    1.52 + * <p> <b>WARNING:</b> The {@code ElementVisitor} interface
    1.53 + * implemented by this class may have methods added to it in the
    1.54 + * future to accommodate new, currently unknown, language structures
    1.55 + * added to future versions of the Java&trade; programming language.
    1.56 + * Therefore, methods whose names begin with {@code "visit"} may be
    1.57 + * added to this class in the future; to avoid incompatibilities,
    1.58 + * classes which extend this class should not declare any instance
    1.59 + * methods with names beginning with {@code "visit"}.
    1.60 + *
    1.61 + * <p>When such a new visit method is added, the default
    1.62 + * implementation in this class will be to call the {@link
    1.63 + * #visitUnknown visitUnknown} method.  A new simple element visitor
    1.64 + * class will also be introduced to correspond to the new language
    1.65 + * level; this visitor will have different default behavior for the
    1.66 + * visit method in question.  When the new visitor is introduced, all
    1.67 + * or portions of this visitor may be deprecated.
    1.68 + *
    1.69 + * @param <R> the return type of this visitor's methods.  Use {@code Void}
    1.70 + *             for visitors that do not need to return results.
    1.71 + * @param <P> the type of the additional parameter to this visitor's methods.  Use {@code Void}
    1.72 + *              for visitors that do not need an additional parameter.
    1.73 + *
    1.74 + * @see SimpleElementVisitor6
    1.75 + * @see SimpleElementVisitor7
    1.76 + * @since 1.8
    1.77 + */
    1.78 +@SupportedSourceVersion(RELEASE_8)
    1.79 +public class SimpleElementVisitor8<R, P> extends SimpleElementVisitor7<R, P> {
    1.80 +    /**
    1.81 +     * Constructor for concrete subclasses; uses {@code null} for the
    1.82 +     * default value.
    1.83 +     */
    1.84 +    protected SimpleElementVisitor8(){
    1.85 +        super(null);
    1.86 +    }
    1.87 +
    1.88 +    /**
    1.89 +     * Constructor for concrete subclasses; uses the argument for the
    1.90 +     * default value.
    1.91 +     *
    1.92 +     * @param defaultValue the value to assign to {@link #DEFAULT_VALUE}
    1.93 +     */
    1.94 +    protected SimpleElementVisitor8(R defaultValue){
    1.95 +        super(defaultValue);
    1.96 +    }
    1.97 +}