com.sas.util.validators
Class RequiredStringValidator

com.sas.util.validators.RequiredStringValidator

All Implemented Interfaces:

ValidationInterface, java.io.Serializable

public class RequiredStringValidator

A Validator that validates that the value entered is not null, a zero-length string, or consists only of whitespace.

See Also:

Serialized Form

Field Summary

protected static int	INVALID_LENGTH
static java.lang.String	invalidLength
protected static int	NOT_STRING
static java.lang.String	notString
static java.lang.String	RB_KEY

Fields inherited from class com.sas.util.validators.Validator

message, messages, msgObject

Constructor Summary

RequiredStringValidator()
Default constructor

RequiredStringValidator(java.lang.String customValidationMessage)
Constructor that displays a custom validation message.

Method Summary

void	createValidationMessages() createValidationMessages is called by the constructor to create the collection of message objects that are accessed by validateValue.
boolean	validateValue(java.lang.Object component, java.lang.Object value) Default implementation.

Methods inherited from class com.sas.util.validators.Validator

getExtendedBeanInfo, getValidationMessage, getValidationMessageCode, newValidationMessage, normalizeValue, setValidationMessage, setValidationMessageCode

Field Detail

RB_KEY

public static final java.lang.String RB_KEY

See Also:

Constant Field Values

invalidLength

public static final java.lang.String invalidLength

See Also:

Constant Field Values

notString

public static final java.lang.String notString

See Also:

Constant Field Values

INVALID_LENGTH

protected static final int INVALID_LENGTH

See Also:

Constant Field Values

NOT_STRING

protected static final int NOT_STRING

See Also:

Constant Field Values

Constructor Detail

RequiredStringValidator

public RequiredStringValidator()

Default constructor

RequiredStringValidator

public RequiredStringValidator(java.lang.String customValidationMessage)

Constructor that displays a custom validation message. The validation message is displayed when the value entered in the field is invalid.

Parameters:

customValidationMessage - message to be displayed when value is invalid

Method Detail

validateValue

public boolean validateValue(java.lang.Object component,
                             java.lang.Object value)

Description copied from class: Validator

Default implementation. Returns true. Subclasses should override and perform the actual validation.

Specified by:

validateValue in interface ValidationInterface

Overrides:

validateValue in class Validator

Parameters:

component - an object containing the value

value - the value to be validated

Returns:

true if the value us valid, false if not. If false is returned, the validator should call setValidationMessage with a String for a reason.

See Also:

ValidationInterface.validateValue(java.lang.Object, java.lang.Object)

createValidationMessages

public void createValidationMessages()

Description copied from class: Validator

createValidationMessages is called by the constructor to create the collection of message objects that are accessed by validateValue. This can be overridden by subclasses to allow for different messages to be displayed. For each message, newValidationMessage is called to create the actual Message object. Other data can then be set on the Message object if desired.

Overrides:

createValidationMessages in class Validator

See Also:

Validator.newValidationMessage(java.lang.String)