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JDK 1.6
  javax.lang.model.element. NestingKind View Javadoc
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/*
 * @(#)NestingKind.java	1.3 06/07/17
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package javax.lang.model.element;

/**
 * The <i>nesting kind</i> of a type element.
 * Type elements come in four varieties: 
 * top-level, member, local, and anonymous.
 * <i>Nesting kind</i> is a non-standard term used here to denote this
 * classification.
 *
 * <p>Note that it is possible additional nesting kinds will be added
 * in future versions of the platform.
 *
 * <p><b>Example:</b> The classes below are annotated with their nesting kind.
 * <blockquote><pre>
 *
 * import java.lang.annotation.*;
 * import static java.lang.annotation.RetentionPolicy.*;
 * import javax.lang.model.element.*;
 * import static javax.lang.model.element.NestingKind.*;
 * 
 * &#64;Nesting(TOP_LEVEL)
 * public class NestingExamples {
 *     &#64;Nesting(MEMBER)
 *     static class MemberClass1{}
 * 
 *     &#64;Nesting(MEMBER)
 *     class MemberClass2{}
 * 
 *     public static void main(String... argv) {
 *         &#64;Nesting(LOCAL)
 *         class LocalClass{};
 * 
 *         Class&lt;?&gt;[] classes = {
 *             NestingExamples.class,
 *             MemberClass1.class,
 *             MemberClass2.class,
 *             LocalClass.class
 *         };	
 * 
 *         for(Class&lt;?&gt; clazz : classes) {
 *             System.out.format("%s is %s%n",
 *                               clazz.getName(),
 *                               clazz.getAnnotation(Nesting.class).value());
 *         }
 *     }
 * }
 * 
 * &#64;Retention(RUNTIME)
 * &#64;interface Nesting {
 *     NestingKind value();
 * }
 * </pre></blockquote>
 *
 * @author Joseph D. Darcy
 * @author Scott Seligman
 * @author Peter von der Ah&eacute;
 * @version 1.3 06/07/17
 * @since 1.6
 */
public enum NestingKind {
    TOP_LEVEL,
    MEMBER,
    LOCAL,
    ANONYMOUS;

    /**
     * Does this constant correspond to a nested type element?
     * A <i>nested</i> type element is any that is not top-level.
     * An <i>inner</i> type element is any nested type element that
     * is not {@linkplain Modifier#STATIC static}.
     */
    public boolean isNested() {
	return this != TOP_LEVEL;
    }
}

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