Package com.helger.commons.email

Class EmailAddressHelper

java.lang.Object

com.helger.commons.email.EmailAddressHelper

@Immutable
public final class EmailAddressHelper
extends Object

Perform simple email address validation based on a regular expression.

Author:

Philip Helger

Field Summary

Fields

Modifier and Type	Field	Description
static final String	EMAIL_ADDRESS_PATTERN	This is the email RegEx :)
static final String	EMAIL_ADDRESS_PATTERN_SIMPLE	This is the simple email RegEx that deals with Unicode email addresses.

Method Summary

Modifier and Type	Method	Description
static String	getUnifiedEmailAddress(String sEmailAddress)	Get the unified version of an email address.
static boolean	isValid(String sEmailAddress)	Checks if a value is a valid e-mail address according to the original, complex regular expression (see EMAIL_ADDRESS_PATTERN).
static boolean	isValidForSimplePattern(String sEmailAddress)	Checks if a value is a valid e-mail address according to the simple regular expression (see EMAIL_ADDRESS_PATTERN_SIMPLE).

Methods inherited from class java.lang.Object

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

Field Details

EMAIL_ADDRESS_PATTERN

public static final String EMAIL_ADDRESS_PATTERN

This is the email RegEx :)

See Also:

• Constant Field Values

EMAIL_ADDRESS_PATTERN_SIMPLE

public static final String EMAIL_ADDRESS_PATTERN_SIMPLE

This is the simple email RegEx that deals with Unicode email addresses. Based on https://github.com/itplr-kosit/validator-configuration-xrechnung/issues/109

See Also:

• Constant Field Values

Method Details

getUnifiedEmailAddress

@Nullable
public static String getUnifiedEmailAddress(@Nullable
 String sEmailAddress)

Get the unified version of an email address. It trims leading and trailing spaces and lower-cases the email address.

Parameters:

sEmailAddress - The email address to unify. May be null.

Returns:

The unified email address or null if the input address is null.

isValid

public static boolean isValid(@Nullable
 String sEmailAddress)

Checks if a value is a valid e-mail address according to the original, complex regular expression (see EMAIL_ADDRESS_PATTERN).

Parameters:

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

Returns:

true if the email address is valid, false otherwise.

isValidForSimplePattern

public static boolean isValidForSimplePattern(@Nullable
 String sEmailAddress)

Checks if a value is a valid e-mail address according to the simple regular expression (see EMAIL_ADDRESS_PATTERN_SIMPLE). The idea is, that all email addresses valid with isValid(String) are still valid with this one.

Parameters:

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

Returns:

true if the email address is valid, false otherwise.