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80 lines
2.5 KiB
80 lines
2.5 KiB
/*
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* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package javax.lang.model.util;
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import static javax.lang.model.SourceVersion.*;
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import javax.lang.model.SourceVersion;
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import javax.annotation.processing.SupportedSourceVersion;
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/**
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* A skeletal visitor for annotation values with default behavior
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* appropriate for the {@link SourceVersion#RELEASE_8 RELEASE_8}
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* source version.
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*
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* <p> <b>WARNING:</b> The {@code AnnotationValueVisitor} interface
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* implemented by this class may have methods added to it in the
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* future to accommodate new, currently unknown, language structures
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* added to future versions of the Java™ programming language.
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* Therefore, methods whose names begin with {@code "visit"} may be
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* added to this class in the future; to avoid incompatibilities,
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* classes which extend this class should not declare any instance
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* methods with names beginning with {@code "visit"}.
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*
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* <p>When such a new visit method is added, the default
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* implementation in this class will be to call the {@link
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* #visitUnknown visitUnknown} method. A new abstract annotation
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* value visitor class will also be introduced to correspond to the
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* new language level; this visitor will have different default
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* behavior for the visit method in question. When the new visitor is
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* introduced, all or portions of this visitor may be deprecated.
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*
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* <p>Note that adding a default implementation of a new visit method
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* in a visitor class will occur instead of adding a <em>default
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* method</em> directly in the visitor interface since a Java SE 8
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* language feature cannot be used to this version of the API since
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* this version is required to be runnable on Java SE 7
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* implementations. Future versions of the API that are only required
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* to run on Java SE 8 and later may take advantage of default methods
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* in this situation.
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*
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* @param <R> the return type of this visitor's methods
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* @param <P> the type of the additional parameter to this visitor's methods.
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*
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* @see AbstractAnnotationValueVisitor6
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* @see AbstractAnnotationValueVisitor7
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* @since 1.8
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*/
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@SupportedSourceVersion(RELEASE_8)
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public abstract class AbstractAnnotationValueVisitor8<R, P> extends AbstractAnnotationValueVisitor7<R, P> {
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/**
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* Constructor for concrete subclasses to call.
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*/
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protected AbstractAnnotationValueVisitor8() {
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super();
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}
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}
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