public class EmailValidator
extends java.lang.Object
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 http://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"
.Modifier and Type | Field and Description |
---|---|
private static java.lang.String |
ATOM
Deprecated.
|
private static java.util.regex.Pattern |
ATOM_PATTERN
Deprecated.
|
private static java.util.regex.Pattern |
DOMAIN_PATTERN
Deprecated.
|
private static EmailValidator |
EMAIL_VALIDATOR
Deprecated.
Singleton instance of this class.
|
private static java.util.regex.Pattern |
IP_DOMAIN_PATTERN
Deprecated.
|
private static java.lang.String |
QUOTED_USER
Deprecated.
|
private static java.lang.String |
SPECIAL_CHARS
Deprecated.
|
private static java.util.regex.Pattern |
TLD_PATTERN
Deprecated.
|
private static java.util.regex.Pattern |
USER_PATTERN
Deprecated.
|
private static java.lang.String |
VALID_CHARS
Deprecated.
|
private static java.lang.String |
WORD
Deprecated.
|
Modifier | Constructor and Description |
---|---|
protected |
EmailValidator()
Deprecated.
Protected constructor for subclasses to use.
|
Modifier and Type | Method and Description |
---|---|
static EmailValidator |
getInstance()
Deprecated.
Returns the Singleton instance of this validator.
|
boolean |
isValid(java.lang.String email)
Deprecated.
Checks if a field has a valid e-mail address.
|
protected boolean |
isValidDomain(java.lang.String domain)
Deprecated.
Returns true if the domain component of an email address is valid.
|
protected boolean |
isValidIpAddress(java.lang.String ipAddress)
Deprecated.
Validates an IP address.
|
protected boolean |
isValidSymbolicDomain(java.lang.String domain)
Deprecated.
Validates a symbolic domain name.
|
protected boolean |
isValidUser(java.lang.String user)
Deprecated.
Returns true if the user component of an email address is valid.
|
protected java.lang.String |
stripComments(java.lang.String emailStr)
Deprecated.
Recursively remove comments, and replace with a single space.
|
private static final java.lang.String SPECIAL_CHARS
private static final java.lang.String VALID_CHARS
private static final java.lang.String QUOTED_USER
private static final java.lang.String ATOM
private static final java.lang.String WORD
private static final java.util.regex.Pattern IP_DOMAIN_PATTERN
private static final java.util.regex.Pattern TLD_PATTERN
private static final java.util.regex.Pattern USER_PATTERN
private static final java.util.regex.Pattern DOMAIN_PATTERN
private static final java.util.regex.Pattern ATOM_PATTERN
private static final EmailValidator EMAIL_VALIDATOR
protected EmailValidator()
public static EmailValidator getInstance()
public boolean isValid(java.lang.String email)
Checks if a field has a valid e-mail address.
email
- The value validation is being performed on. A null
value is considered invalid.protected boolean isValidDomain(java.lang.String domain)
domain
- being validated.protected boolean isValidUser(java.lang.String user)
user
- being validatedprotected boolean isValidIpAddress(java.lang.String ipAddress)
ipAddress
- IP addressprotected boolean isValidSymbolicDomain(java.lang.String domain)
domain
- symbolic domain nameprotected java.lang.String stripComments(java.lang.String emailStr)
emailStr
- The email address