AbstractAnnotationValueVisitor7.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * accompanied this code).
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package javax.lang.model.util;

import javax.annotation.processing.SupportedSourceVersion;
import javax.lang.model.SourceVersion;

import static javax.lang.model.SourceVersion.RELEASE_7;

/**
 * A skeletal visitor for annotation values with default behavior
 * appropriate for the {@link SourceVersion#RELEASE_7 RELEASE_7}
 * source version.
 *
 * <p> <b>WARNING:</b> The {@code AnnotationValueVisitor} interface
 * implemented by this class may have methods added to it in the
 * future to accommodate new, currently unknown, language structures
 * added to future versions of the Java&trade; programming language.
 * Therefore, methods whose names begin with {@code "visit"} may be
 * added to this class in the future; to avoid incompatibilities,
 * classes which extend this class should not declare any instance
 * methods with names beginning with {@code "visit"}.
 *
 * <p>When such a new visit method is added, the default
 * implementation in this class will be to call the {@link
 * #visitUnknown visitUnknown} method.  A new abstract annotation
 * value visitor class will also be introduced to correspond to the
 * new language level; this visitor will have different default
 * behavior for the visit method in question.  When the new visitor is
 * introduced, all or portions of this visitor may be deprecated.
 *
 * @param <R> the return type of this visitor's methods
 * @param <P> the type of the additional parameter to this visitor's methods.
 *
 * @see AbstractAnnotationValueVisitor6
 * @see AbstractAnnotationValueVisitor8
 * @see AbstractAnnotationValueVisitor9
 * @since 1.7
 */
// 注解值访问器的抽象实现（JDK7）
@SupportedSourceVersion(RELEASE_7)
public abstract class AbstractAnnotationValueVisitor7<R, P> extends AbstractAnnotationValueVisitor6<R, P> {
    
    /**
     * Constructor for concrete subclasses to call.
     */
    @SuppressWarnings("deprecation") // Superclass constructor deprecated
    protected AbstractAnnotationValueVisitor7() {
        super();
    }
}