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java.lang.Objectorg.apache.commons.validator.EmailValidator
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"
.
Field Summary | |
private static java.lang.String |
ATOM
|
private static java.lang.String |
ATOM_PATTERN
|
private static java.lang.String |
DOMAIN_PATTERN
|
private static java.lang.String |
EMAIL_PATTERN
|
private static EmailValidator |
instance
Singleton instance of this class. |
private static java.lang.String |
IP_DOMAIN_PATTERN
|
private static java.lang.String |
LEGAL_ASCII_PATTERN
|
private static java.lang.String |
QUOTED_USER
|
private static java.lang.String |
SPECIAL_CHARS
|
private static java.lang.String |
TLD_PATTERN
|
private static java.lang.String |
USER_PATTERN
|
private static java.lang.String |
VALID_CHARS
|
private static java.lang.String |
WORD
|
Constructor Summary | |
protected |
EmailValidator()
Protected constructor for subclasses to use. |
Method Summary | |
static EmailValidator |
getInstance()
Returns the Singleton instance of this validator. |
boolean |
isValid(java.lang.String email)
Checks if a field has a valid e-mail address. |
protected boolean |
isValidDomain(java.lang.String domain)
Returns true if the domain component of an email address is valid. |
protected boolean |
isValidIpAddress(org.apache.oro.text.perl.Perl5Util ipAddressMatcher)
Validates an IP address. |
protected boolean |
isValidSymbolicDomain(java.lang.String domain)
Validates a symbolic domain name. |
protected boolean |
isValidUser(java.lang.String user)
Returns true if the user component of an email address is valid. |
protected java.lang.String |
stripComments(java.lang.String emailStr)
Recursively remove comments, and replace with a single space. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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.lang.String LEGAL_ASCII_PATTERN
private static final java.lang.String EMAIL_PATTERN
private static final java.lang.String IP_DOMAIN_PATTERN
private static final java.lang.String TLD_PATTERN
private static final java.lang.String USER_PATTERN
private static final java.lang.String DOMAIN_PATTERN
private static final java.lang.String ATOM_PATTERN
private static final EmailValidator instance
Constructor Detail |
protected EmailValidator()
Method Detail |
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 validatied.
protected boolean isValidUser(java.lang.String user)
user
- being validated
protected boolean isValidIpAddress(org.apache.oro.text.perl.Perl5Util ipAddressMatcher)
ipAddressMatcher
- Pattren matcher
protected boolean isValidSymbolicDomain(java.lang.String domain)
domain
- symbolic domain name
protected java.lang.String stripComments(java.lang.String emailStr)
emailStr
- The email address
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