net.sf.jguiraffe.gui.forms

Enum ValidationPhase

java.lang.Object

java.lang.Enum<ValidationPhase>

net.sf.jguiraffe.gui.forms.ValidationPhase

All Implemented Interfaces:

Serializable, Comparable<ValidationPhase>

public enum ValidationPhase
extends Enum<ValidationPhase>

An enumeration class that describes the different validation phases.

An instance of this class is passed to the FieldHandler.validate(ValidationPhase) method. This method can then determine, which validation to perform.

The form framework distinguishes between validation on the field and the form layer. The field layer deals with syntactic checks. Here the user input is verified to match the expected data type, e.g. is the text entered by the user a valid number or a valid date? The form layer is more about semantic. After the user's input has been transformed into the target data types constraints for the single fields are checked, e.g. is the number between 0 and 100 or is the date in the future.

Version:

$Id: ValidationPhase.java 205 2012-01-29 18:29:57Z oheger $

Author:

Oliver Heger

Enum Constant Summary

Enum Constants

Enum Constant and Description
LOGIC The validation phase "form".
SYNTAX The validation phase "field".

Method Summary

Methods

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

SYNTAX

public static final ValidationPhase SYNTAX

The validation phase "field".

LOGIC

public static final ValidationPhase LOGIC

The validation phase "form".

Method Detail

values

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

Returns:

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

valueOf

public static ValidationPhase 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