net.sf.jguiraffe.gui.forms

Enum DummyWrapper

java.lang.Object

java.lang.Enum<DummyWrapper>

net.sf.jguiraffe.gui.forms.DummyWrapper

All Implemented Interfaces:

Serializable, Comparable<DummyWrapper>, TransformerWrapper, ValidatorWrapper

public enum DummyWrapper
extends Enum<DummyWrapper>
implements TransformerWrapper, ValidatorWrapper

A dummy implementation of the TransformerWrapper and the ValidatorWrapper interfaces.

This class implements an identity transformation and a validation which always returns valid. It can be used as an application of the null object pattern when no specific transformers or validators are set.

The class is an enumeration because it is not necessary to create instance; the singleton instance can be shared by all components.

Version:

$Id$

Author:

Oliver Heger

Enum Constant Summary

Enum Constants

Enum Constant and Description
INSTANCE The single instance of this class.

Method Summary

Modifier and Type	Method and Description
static DummyWrapper	valueOf(String name) Returns the enum constant of this type with the specified name.
static DummyWrapper[]	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

Methods inherited from interface net.sf.jguiraffe.gui.forms.TransformerWrapper

transform

Methods inherited from interface net.sf.jguiraffe.gui.forms.ValidatorWrapper

isValid

Enum Constant Detail

INSTANCE

public static final DummyWrapper INSTANCE

The single instance of this class.

Method Detail

values

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

Returns:

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

valueOf

public static DummyWrapper 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