Enum ConstraintTarget

Enum Constant Detail

• IMPLICIT

  public static final ConstraintTarget IMPLICIT

  Discover the type when no ambiguity is present

  • if neither on a method nor a constructor, it implies the annotated element (type, field etc),
  • if on a method or constructor with no parameter, it implies RETURN_VALUE,
  • if on a method with no return value (void), it implies PARAMETERS.

  Otherwise, IMPLICIT is not accepted and either RETURN_VALUE or PARAMETERS is required. This is the case for constructors with parameters and methods with parameters and return value.

• RETURN_VALUE

  public static final ConstraintTarget RETURN_VALUE

  Constraint applies to the return value of a method or a constructor.

• PARAMETERS

  public static final ConstraintTarget PARAMETERS

  Constraint applies to the parameters of a method or a constructor

Method Detail

• values

  public static ConstraintTarget[] 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 (ConstraintTarget c : ConstraintTarget.values())
      System.out.println(c);
  

  Returns:

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

• valueOf

  public static ConstraintTarget 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