Java com.liferay.portal.kernel.util Validator fields, constructors, methods, implement or subclass

Introduction

In this page you can find the methods, fields and constructors for com.liferay.portal.kernel.util Validator.

The text is from its open source code.

Subclass

com.liferay.portal.kernel.util.Validator has subclasses.
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Method

boolean	isAlphanumericName(String name) Returns `true` if the string is an alphanumeric name, meaning it contains nothing but English letters, numbers, and spaces.
boolean	isBlank(String s)
boolean	isChar(char c) Returns `true` if the character is an upper or lower case English letter.
boolean	isChar(String s) Returns `true` if string consists only of upper and lower case English letters.
boolean	isDate(int month, int day, int year) Returns `true` if the date is valid in the Gregorian calendar.
boolean	isDigit(char c) Returns `true` if the character is a digit between 0 and 9 (inclusive).
boolean	isDigit(String s) Returns `true` if the string consists of only digits between 0 and 9 (inclusive).
boolean	isDomain(String domainName) Returns `true` if the string is a valid domain name.
boolean	isEmailAddress(String emailAddress) Returns `true` if the string is a valid email address.
boolean	isFileExtension(String fileExtension) Returns `true` if the file extension is valid.
boolean	isFileName(String name)
boolean	isFilePath(String path, boolean parentDirAllowed)
boolean	isHostName(String name) Returns `true` if the string is a valid host name.
boolean	isIPAddress(String ipAddress) Returns `true` if the string is a valid IPv4 or IPv6 IP address.
boolean	isLUHN(String number) Returns `true` if the string contains a valid number according to the Luhn algorithm, commonly used to validate credit card numbers.
boolean	isNotNull(Long l) Returns `true` if the long number object is not `null`, meaning it is neither a `null` reference or zero.
boolean	isNotNull(Object obj) Returns `true` if the object is not `null`, using the rules from #isNotNull(Long) or #isNotNull(String) if the object is one of these types.
boolean	isNotNull(String s) Returns `true` if the string is not `null`, meaning it is not a `null` reference, an empty string, whitespace, or the string "`null`", with or without leading or trailing whitespace.
boolean	isNull(Long l) Returns `true` if the long number object is `null`, meaning it is either a `null` reference or zero.
boolean	isNull(Object obj) Returns `true` if the object is `null`, using the rules from #isNull(Long) or #isNull(String) if the object is one of these types.
boolean	isNull(String s) Returns `true` if the string is `null`, meaning it is a `null` reference, an empty string, whitespace, or the string "`null`", with or without leading or trailing whitespace.
boolean	isNumber(String number) Returns `true` if the string is a decimal integer number, meaning it contains nothing but decimal digits.
boolean	isPassword(String password) Returns `true` if the string is a valid password, meaning it is at least four characters long and contains only letters and decimal digits.
boolean	isPhoneNumber(String phoneNumber) Returns `true` if the string is a valid phone number.
boolean	isUrl(String url) Returns `true` if the string is a valid URL based on the rules in URL .
boolean	isUrl(String url, boolean acceptRootRelative) Returns `true` if the string is a valid URL based on the rules in URL .
boolean	isVariableName(String variableName) Returns `true` if the string is a valid variable name in Java.
boolean	isVariableTerm(String s) Returns `true` if the string is a valid variable term, meaning it begins with "[$" and ends with "$]".
boolean	isXml(String s) Returns `true` if the string is an XML document.