javax.annotation.meta

Enum When

java.lang.Object

java.lang.Enum<When>

javax.annotation.meta.When

All Implemented Interfaces:

Serializable, Comparable<When>

public enum When
extends Enum<When>

Used to describe the relationship between a qualifier T and the set of values S possible on an annotated element. In particular, an issues should be reported if an ALWAYS or MAYBE value is used where a NEVER value is required, or if a NEVER or MAYBE value is used where an ALWAYS value is required.

Enum Constant Summary

Enum Constants

Enum Constant and Description
ALWAYS S is a subset of T
MAYBE S intersection T is non empty and S - T is nonempty
NEVER S intersection T is empty
UNKNOWN nothing definitive is known about the relation between S and T

Method Summary

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

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

ALWAYS

public static final When ALWAYS

S is a subset of T

UNKNOWN

public static final When UNKNOWN

nothing definitive is known about the relation between S and T

MAYBE

public static final When MAYBE

S intersection T is non empty and S - T is nonempty

NEVER

public static final When NEVER

S intersection T is empty

Method Detail

values

public static When[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (When c : When.values())
    System.out.println(c);

Returns:

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

valueOf

public static When 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