Class Valid

java.lang.Object

fc.web.simpleforms.Valid

public final class Valid
extends Object

Utility methods for common validation needs.

Constructor Summary

Constructors

Constructor	Description
Valid()

Method Summary

Modifier and Type	Method	Description
static boolean	isAllowed(String str, String allowedChars)	Returns true if the specified string only contains the allowed characters.
static boolean	isEmpty(String str)
static boolean	isFloatOnly(String str)	Ensures that the string is composed of only floating point numbers (digits [0-9] and maybe a "."), with optional leading/trailing blanks.
static boolean	isIntegerOnly(String str)	Ensures that the string is composed of only an digits [0-9] with optional leading/trailing blanks.
static boolean	isNotAllowed(String str, String unallowedChars)	Returns true if the specified string has no unallowed characters.
static boolean	isNotEmpty(String str)	Returns true is the specified string is not null and not empty ("").
static boolean	length(String str, int min, int max)	Returns true if the string is non-empty and it's length is between the specified min and max lengths (both inclusive).
static void	main(String[] args)
static void	setTrimSpaces(boolean val)	If set to true, methods in this class will trim the string entered by the user before attempting to run further validation on it, else strings will not be trimmed automatically.

Methods inherited from class Object

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

Constructor Details

Valid

public Valid()

Method Details

setTrimSpaces

public static void setTrimSpaces(boolean val)

If set to true, methods in this class will trim the string entered by the user before attempting to run further validation on it, else strings will not be trimmed automatically. Defaults to true.

isIntegerOnly

public static boolean isIntegerOnly(String str)

Ensures that the string is composed of only an digits [0-9] with optional leading/trailing blanks. (floating point/real numbers are not allowed because they contain a ".")

isFloatOnly

public static boolean isFloatOnly(String str)

Ensures that the string is composed of only floating point numbers (digits [0-9] and maybe a "."), with optional leading/trailing blanks. Negative numbers (with a leading "-") are also allowed.

isEmpty

public static boolean isEmpty(String str)

isNotEmpty

public static boolean isNotEmpty(String str)

Returns true is the specified string is not null and not empty ("").

length

public static boolean length(String str,
 int min,
 int max)

Returns true if the string is non-empty and it's length is between the specified min and max lengths (both inclusive).

isAllowed

public static boolean isAllowed(String str,
 String allowedChars)

Returns true if the specified string only contains the allowed characters. If the string contains any other characters that are not allowed, returns false

isNotAllowed

public static boolean isNotAllowed(String str,
 String unallowedChars)

Returns true if the specified string has no unallowed characters. If the string contains any unallowed characters, returns false

main

public static void main(String[] args)