Module java.base

Package java.lang.annotation

Enum RetentionPolicy

java.lang.Object

java.lang.Enum<RetentionPolicy>

java.lang.annotation.RetentionPolicy

All Implemented Interfaces:

Serializable, Comparable<RetentionPolicy>, Constable

public enum RetentionPolicy
extends Enum<RetentionPolicy>

Annotation retention policy. The constants of this enumerated type describe the various policies for retaining annotations. They are used in conjunction with the Retention meta-annotation type to specify how long annotations are to be retained.

Since:

1.5

Nested Class Summary

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

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
CLASS	Annotations are to be recorded in the class file by the compiler but need not be retained by the VM at run time.
RUNTIME	Annotations are to be recorded in the class file by the compiler and retained by the VM at run time, so they may be read reflectively.
SOURCE	Annotations are to be discarded by the compiler.

Method Summary

Modifier and Type	Method	Description
static RetentionPolicy	valueOf(String name)	Returns the enum constant of this type with the specified name.
static RetentionPolicy[]	values()	Returns an array containing the constants of this enum type, 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

SOURCE

public static final RetentionPolicy SOURCE

Annotations are to be discarded by the compiler.

CLASS

public static final RetentionPolicy CLASS

Annotations are to be recorded in the class file by the compiler but need not be retained by the VM at run time. This is the default behavior.

RUNTIME

public static final RetentionPolicy RUNTIME

Annotations are to be recorded in the class file by the compiler and retained by the VM at run time, so they may be read reflectively.

See Also:

AnnotatedElement

Method Details

values

public static RetentionPolicy[] values()

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

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static RetentionPolicy valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (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 type has no constant with the specified name

NullPointerException - if the argument is null