Enum Class NestingKind

java.lang.Object

java.lang.Enum<NestingKind>

javax.lang.model.element.NestingKind

All Implemented Interfaces:: Serializable, Comparable<NestingKind>, Constable

public enum NestingKind extends Enum<NestingKind>

The nesting kind of a type element. Type elements come in four varieties: top-level, member, local, and anonymous. Nesting kind is a non-standard term used here to denote this classification.

Note that it is possible additional nesting kinds will be added in future versions of the platform.

Example: The classes below are annotated with their nesting kind.


 import java.lang.annotation.*;
 import static java.lang.annotation.RetentionPolicy.*;
 import javax.lang.model.element.*;
 import static javax.lang.model.element.NestingKind.*;

 @Nesting(TOP_LEVEL)
 public class NestingExamples {
     @Nesting(MEMBER)
     static class MemberClass1{}

     @Nesting(MEMBER)
     class MemberClass2{}

     public static void main(String... argv) {
         @Nesting(LOCAL)
         class LocalClass{};

         Class<?>[] classes = {
             NestingExamples.class,
             MemberClass1.class,
             MemberClass2.class,
             LocalClass.class
         };

         for(Class<?> clazz : classes) {
             System.out.format("%s is %s%n",
                               clazz.getName(),
                               clazz.getAnnotation(Nesting.class).value());
         }
     }
 }

 @Retention(RUNTIME)
 @interface Nesting {
     NestingKind value();
 }

Since:: 1.6

Nested Class Summary

Nested classes/interfaces declared in class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constant	Description
`ANONYMOUS`	A class without a name.
`LOCAL`	A named class or interface declared within a construct other than a class or interface.
`MEMBER`	A class or interface that is a named member of another class or interface.
`TOP_LEVEL`	A top-level class or interface, not contained within another class or interface.

Method Summary

Modifier and Type	Method	Description
`boolean`	`isNested()`	Does this constant correspond to a nested type element?
`static NestingKind`	`valueOf(String name)`	Returns the enum constant of this class with the specified name.
`static NestingKind[]`	`values()`	Returns an array containing the constants of this enum class, in the order they are declared.

Methods declared in class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods declared in class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

TOP_LEVEL

public static final NestingKind TOP_LEVEL

A top-level class or interface, not contained within another class or interface.

MEMBER

public static final NestingKind MEMBER

A class or interface that is a named member of another class or interface.

See Java Language Specification:: 8.5 Member Class and Interface Declarations

LOCAL

public static final NestingKind LOCAL

A named class or interface declared within a construct other than a class or interface.

See Java Language Specification:: 14.3 Local Class Declarations

ANONYMOUS

public static final NestingKind ANONYMOUS

A class without a name.

See Java Language Specification:: 15.9.5 Anonymous Class Declarations

Method Details

values

public static NestingKind[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:: an array containing the constants of this enum class, in the order they are declared

valueOf

public static NestingKind valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:: name - the name of the enum constant to be returned.
Returns:: the enum constant with the specified name
Throws:: IllegalArgumentException - if this enum class has no constant with the specified name; NullPointerException - if the argument is null

isNested

public boolean isNested()

Does this constant correspond to a nested type element? A nested type element is any that is not top-level. More specifically, an inner type element is any nested type element that is not static.

Returns:: whether or not the constant is nested
See Java Language Specification:: 14.3 Local Class Declarations

© 1993, 2023, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/21/docs/api/java.compiler/javax/lang/model/element/NestingKind.html

Docs

Docs4dev

Title here