info.bliki.commons.validator.routines

Class EmailValidator

java.lang.Object

info.bliki.commons.validator.routines.EmailValidator

All Implemented Interfaces:

Serializable

public class EmailValidator
extends Object
implements Serializable

Perform email validations.

This class is a Singleton; you can retrieve the instance via the getInstance() method.

Based on a script by Sandeep V. Tamhankar https://javascript.internet.com

This implementation is not guaranteed to catch all possible errors in an email address. For example, an address like nobody@noplace.somedog will pass validator, even though there is no TLD "somedog"

.

Since:

Validator 1.4

Version:

$Revision$ $Date$

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	EmailValidator() Protected constructor for subclasses to use.

Method Summary

Modifier and Type	Method and Description
static EmailValidator	getInstance() Returns the Singleton instance of this validator.
boolean	isValid(String email) Checks if a field has a valid e-mail address.
protected boolean	isValidDomain(String domain) Returns true if the domain component of an email address is valid.
protected boolean	isValidQueryString(String queryString) Returns true if the query string component of an email address is valid.
protected boolean	isValidUser(String user) Returns true if the user component of an email address is valid.

Methods inherited from class java.lang.Object

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

Constructor Detail

EmailValidator

protected EmailValidator()

Protected constructor for subclasses to use.

Method Detail

getInstance

public static EmailValidator getInstance()

Returns the Singleton instance of this validator.

Returns:

singleton instance of this validator.

isValid

public boolean isValid(String email)

Checks if a field has a valid e-mail address.

Parameters:

email - The value validation is being performed on. A null value is considered invalid.

Returns:

true if the email address is valid.

isValidDomain

protected boolean isValidDomain(String domain)

Returns true if the domain component of an email address is valid.

Parameters:

domain - being validated.

Returns:

true if the email address's domain is valid.

isValidUser

protected boolean isValidUser(String user)

Returns true if the user component of an email address is valid.

Parameters:

user - being validated

Returns:

true if the user name is valid.

isValidQueryString

protected boolean isValidQueryString(String queryString)

Returns true if the query string component of an email address is valid.

Parameters:

queryString - being validated

Returns:

true if the query string is valid.