public class EmailValidator
extends java.lang.Object
implements java.io.Serializable
Perform email validations.
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.
.Modifier and Type | Field and Description |
---|---|
private boolean |
allowLocal |
private boolean |
allowTld |
private static java.util.regex.Pattern |
EMAIL_PATTERN |
private static java.lang.String |
EMAIL_REGEX |
private static EmailValidator |
EMAIL_VALIDATOR
Singleton instance of this class, which
doesn't consider local addresses as valid.
|
private static EmailValidator |
EMAIL_VALIDATOR_WITH_LOCAL
Singleton instance of this class, which does
consider local addresses valid.
|
private static EmailValidator |
EMAIL_VALIDATOR_WITH_LOCAL_WITH_TLD
Singleton instance of this class, which does
consider local addresses valid.
|
private static EmailValidator |
EMAIL_VALIDATOR_WITH_TLD
Singleton instance of this class, which
doesn't consider local addresses as valid.
|
private static java.util.regex.Pattern |
IP_DOMAIN_PATTERN |
private static java.lang.String |
IP_DOMAIN_REGEX |
private static java.lang.String |
QUOTED_USER |
private static long |
serialVersionUID |
private static java.lang.String |
SPECIAL_CHARS |
private static java.util.regex.Pattern |
USER_PATTERN |
private static java.lang.String |
USER_REGEX |
private static java.lang.String |
VALID_CHARS |
private static java.lang.String |
WORD |
Modifier | Constructor and Description |
---|---|
protected |
EmailValidator(boolean allowLocal)
Protected constructor for subclasses to use.
|
protected |
EmailValidator(boolean allowLocal,
boolean allowTld)
Protected constructor for subclasses to use.
|
Modifier and Type | Method and Description |
---|---|
static EmailValidator |
getInstance()
Returns the Singleton instance of this validator.
|
static EmailValidator |
getInstance(boolean allowLocal)
Returns the Singleton instance of this validator,
with local validation as required.
|
static EmailValidator |
getInstance(boolean allowLocal,
boolean allowTld)
Returns the Singleton instance of this validator,
with local validation as required.
|
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 |
isValidUser(java.lang.String user)
Returns true if the user component of an email address is valid.
|
private static final long serialVersionUID
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 WORD
private static final java.lang.String EMAIL_REGEX
private static final java.lang.String IP_DOMAIN_REGEX
private static final java.lang.String USER_REGEX
private static final java.util.regex.Pattern EMAIL_PATTERN
private static final java.util.regex.Pattern IP_DOMAIN_PATTERN
private static final java.util.regex.Pattern USER_PATTERN
private final boolean allowLocal
private final boolean allowTld
private static final EmailValidator EMAIL_VALIDATOR
private static final EmailValidator EMAIL_VALIDATOR_WITH_TLD
private static final EmailValidator EMAIL_VALIDATOR_WITH_LOCAL
private static final EmailValidator EMAIL_VALIDATOR_WITH_LOCAL_WITH_TLD
protected EmailValidator(boolean allowLocal, boolean allowTld)
allowLocal
- Should local addresses be considered valid?protected EmailValidator(boolean allowLocal)
allowLocal
- Should local addresses be considered valid?public static EmailValidator getInstance()
public static EmailValidator getInstance(boolean allowLocal, boolean allowTld)
allowLocal
- Should local addresses be considered valid?public static EmailValidator getInstance(boolean allowLocal)
allowLocal
- Should local addresses be considered valid?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, may be in IDN formatprotected boolean isValidUser(java.lang.String user)
user
- being validated