Field Detail

• ID

  public static final String ID

  See Also:

  getId(), Constant Field Values

Constructor Detail

• ValidatorMandatory

  public ValidatorMandatory()

  The constructor.

Method Detail

• getId

  public String getId()

  Description copied from class: AbstractValidator
  AbstractValidator only provides a default implementation of this method.
  ATTENTION:
  This default implementation returns the simple class name of the actual Validator implementation. This strategy is chosen for simplicity when implementing a new Validator. To ensure stable IDs override this method and return a string constant. This shall at least be done when the name of the class is changed to provide backwards compatibility.

  Specified by:

  getId in interface Validator<Object>

  Overrides:

  getId in class AbstractValidator<Object>

  Returns:

  the identifier of this Validator.

  See Also:

  ValidationResult.getCode()

• get

  public static ValidatorMandatory get()

  Returns:

  the singleton instance of this class.

• validateNull

  protected NlsMessage validateNull()

  Description copied from class: AbstractValueValidator
  This method performs the validation in case null was provided as value. By default null should be considered as a legal value. Only for validators such as mandatory validator this method should be overridden.

  Overrides:

  validateNull in class AbstractValueValidator<Object>

  Returns:

  the failure message or null if null is valid.

• validateNotNull

  protected NlsMessage validateNotNull​(Object value)

  Description copied from class: AbstractValueValidator
  This method performs the validation in case value is NOT null. This method contains the actual custom logic for the validation. It is therefore designed in a way that makes it most simple to implement custom validators.

  Specified by:

  validateNotNull in class AbstractValueValidator<Object>

  Parameters:

  value - the value to validate.

  Returns:

  the failure message or null if the the given value is valid.

• isMandatory

  public final boolean isMandatory()

  Returns:

  true if this is a validator for mandatory fields (that will not accept null or empty values), false otherwise.