com.ibm.commons.iloader.node.validators
Class DoubleValidator

java.lang.Object
  com.ibm.commons.iloader.node.validators.DoubleValidator

All Implemented Interfaces:

IValidator

Direct Known Subclasses:

StrictNumberValidator

public class DoubleValidator
extends java.lang.Object
implements IValidator

A validator that ensures the value entered is a double. It is advised to use the static instance of this class, com.ibm.commons.iloader.node.validators.DoubleValidator.instance.

Field Summary

static DoubleValidator

instance

Constructor Summary

DoubleValidator()
Creates a new instance of this class.

DoubleValidator(java.lang.Double minValue, java.lang.Double maxValue)
Creates a new instance of this validator with specified minimum and maximum values.

Method Summary

boolean	isBeingValid(java.lang.String value) Determines if the current value is valid.
boolean	isValid(java.lang.String value, Messages messages) Determines if the overall input is valid.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

instance

public static final DoubleValidator instance

Constructor Detail

DoubleValidator

public DoubleValidator()

Creates a new instance of this class.

DoubleValidator

public DoubleValidator(java.lang.Double minValue,
                       java.lang.Double maxValue)

Creates a new instance of this validator with specified minimum and maximum values.

Parameters:

minValue - the minimum value that will be accepted for input

maxValue - the maximum value that will be accepted for input

Method Detail

isBeingValid

public boolean isBeingValid(java.lang.String value)

Description copied from interface: IValidator

Determines if the current value is valid. If it is not valid then it will not be accepted by the widget as being a valid input. (e.g. inputEvent.doit = false)

Specified by:

isBeingValid in interface IValidator

Parameters:

value - the string value which has been entered by the end user and requires validation.

Returns:

true if the input should be accepted.

isValid

public boolean isValid(java.lang.String value,
                       Messages messages)

Description copied from interface: IValidator

Determines if the overall input is valid. If the input is valid then true is returned and no further action is required. If the input is invalid false is returned an a message can optionally be added to the messages bundle. Any messages added will be displayed to the end user in the form of a messagebox.

Specified by:

isValid in interface IValidator

Parameters:

value - the string value which has been entered by the end user and requires validation.

messages - a bundle of messages to be displayed to the end user in the event that validation fails.

Returns:

true if the input should be accepted.