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JavaTM 2 Platform Std. Ed. v1.5.0

java.lang.annotation
Enum RetentionPolicy

java.lang.Object
  extended by java.lang.Enum<RetentionPolicy>
      extended by java.lang.annotation.RetentionPolicy
All Implemented Interfaces:
Serializable, Comparable<RetentionPolicy>

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

Enum Constant Summary
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
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're declared.
 
Methods inherited from class java.lang.Enum
clone, compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf
 
Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
 

Enum Constant Detail

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 Detail

values

public static final RetentionPolicy[] values()
Returns an array containing the constants of this enum type, in the order they're declared. This method may be used to iterate over the constants as follows:
for(RetentionPolicy c : RetentionPolicy.values())
        System.out.println(c);

Returns:
an array containing the constants of this enum type, in the order they're 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

Copyright 2003 Sun Microsystems, Inc. All rights reserved