org.apache.commons.validator

Class GenericValidator

public class GenericValidator extends Object implements Serializable

This class contains basic methods for performing validations.
Field Summary
static CreditCardValidatorcreditCardValidator
CreditCardValidator used in wrapper method.
static StringREGEXP_DELIM
Delimiter to put around a regular expression following Perl 5 syntax.
static UrlValidatorurlValidator
UrlValidator used in wrapper method.
Method Summary
protected static StringgetDelimittedRegexp(String regexp)
Adds a '/' on either side of the regular expression.
static booleanisBlankOrNull(String value)

Checks if the field isn't null and length of the field is greater than zero not including whitespace.

static booleanisByte(String value)

Checks if the value can safely be converted to a byte primitive.

static booleanisCreditCard(String value)
Checks if the field is a valid credit card number.
static booleanisDate(String value, Locale locale)

Checks if the field is a valid date.

static booleanisDate(String value, String datePattern, boolean strict)

Checks if the field is a valid date.

static booleanisDouble(String value)

Checks if the value can safely be converted to a double primitive.

static booleanisEmail(String value)

Checks if a field has a valid e-mail address.

static booleanisFloat(String value)

Checks if the value can safely be converted to a float primitive.

static booleanisInRange(byte value, byte min, byte max)

Checks if a value is within a range (min & max specified in the vars attribute).

static booleanisInRange(int value, int min, int max)

Checks if a value is within a range (min & max specified in the vars attribute).

static booleanisInRange(float value, float min, float max)

Checks if a value is within a range (min & max specified in the vars attribute).

static booleanisInRange(short value, short min, short max)

Checks if a value is within a range (min & max specified in the vars attribute).

static booleanisInRange(long value, long min, long max)

Checks if a value is within a range (min & max specified in the vars attribute).

static booleanisInRange(double value, double min, double max)

Checks if a value is within a range (min & max specified in the vars attribute).

static booleanisInt(String value)

Checks if the value can safely be converted to a int primitive.

static booleanisLong(String value)

Checks if the value can safely be converted to a long primitive.

static booleanisShort(String value)

Checks if the value can safely be converted to a short primitive.

static booleanisUrl(String value)

Checks if a field is a valid url address.

If you need to modify what is considered valid then consider using the UrlValidator directly.
static booleanmatchRegexp(String value, String regexp)

Checks if the value matches the regular expression.

static booleanmaxLength(String value, int max)

Checks if the value's length is less than or equal to the max.

static booleanminLength(String value, int min)

Checks if the value's length is greater than or equal to the min.

protected static booleanvalidateCreditCardLuhnCheck(String cardNumber)
Checks for a valid credit card number.
protected booleanvalidateCreditCardPrefixCheck(String cardNumber)
Checks for a valid credit card number.

Field Detail

creditCardValidator

private static final CreditCardValidator creditCardValidator
CreditCardValidator used in wrapper method.

REGEXP_DELIM

public static final String REGEXP_DELIM

Deprecated: Use ValidatorUtils.REGEXP_DELIMITER instead.

Delimiter to put around a regular expression following Perl 5 syntax.

urlValidator

private static final UrlValidator urlValidator
UrlValidator used in wrapper method.

Method Detail

getDelimittedRegexp

protected static String getDelimittedRegexp(String regexp)

Deprecated: use ValidatorUtils.getDelimitedRegExp() instead.

Adds a '/' on either side of the regular expression.

isBlankOrNull

public static boolean isBlankOrNull(String value)

Checks if the field isn't null and length of the field is greater than zero not including whitespace.

Parameters: value The value validation is being performed on.

isByte

public static boolean isByte(String value)

Checks if the value can safely be converted to a byte primitive.

Parameters: value The value validation is being performed on.

isCreditCard

public static boolean isCreditCard(String value)
Checks if the field is a valid credit card number.

Parameters: value The value validation is being performed on.

isDate

public static boolean isDate(String value, Locale locale)

Checks if the field is a valid date. The Locale is used with java.text.DateFormat. The setLenient method is set to false for all.

Parameters: value The value validation is being performed on. locale The locale to use for the date format, defaults to the default system default if null.

isDate

public static boolean isDate(String value, String datePattern, boolean strict)

Checks if the field is a valid date. The pattern is used with java.text.SimpleDateFormat. If strict is true, then the length will be checked so '2/12/1999' will not pass validation with the format 'MM/dd/yyyy' because the month isn't two digits. The setLenient method is set to false for all.

Parameters: value The value validation is being performed on. datePattern The pattern passed to SimpleDateFormat. strict Whether or not to have an exact match of the datePattern.

isDouble

public static boolean isDouble(String value)

Checks if the value can safely be converted to a double primitive.

Parameters: value The value validation is being performed on.

isEmail

public static boolean isEmail(String value)

Checks if a field has a valid e-mail address.

Parameters: value The value validation is being performed on.

isFloat

public static boolean isFloat(String value)

Checks if the value can safely be converted to a float primitive.

Parameters: value The value validation is being performed on.

isInRange

public static boolean isInRange(byte value, byte min, byte max)

Checks if a value is within a range (min & max specified in the vars attribute).

Parameters: value The value validation is being performed on. min The minimum value of the range. max The maximum value of the range.

isInRange

public static boolean isInRange(int value, int min, int max)

Checks if a value is within a range (min & max specified in the vars attribute).

Parameters: value The value validation is being performed on. min The minimum value of the range. max The maximum value of the range.

isInRange

public static boolean isInRange(float value, float min, float max)

Checks if a value is within a range (min & max specified in the vars attribute).

Parameters: value The value validation is being performed on. min The minimum value of the range. max The maximum value of the range.

isInRange

public static boolean isInRange(short value, short min, short max)

Checks if a value is within a range (min & max specified in the vars attribute).

Parameters: value The value validation is being performed on. min The minimum value of the range. max The maximum value of the range.

isInRange

public static boolean isInRange(long value, long min, long max)

Checks if a value is within a range (min & max specified in the vars attribute).

Parameters: value The value validation is being performed on. min The minimum value of the range. max The maximum value of the range.

isInRange

public static boolean isInRange(double value, double min, double max)

Checks if a value is within a range (min & max specified in the vars attribute).

Parameters: value The value validation is being performed on. min The minimum value of the range. max The maximum value of the range.

isInt

public static boolean isInt(String value)

Checks if the value can safely be converted to a int primitive.

Parameters: value The value validation is being performed on.

isLong

public static boolean isLong(String value)

Checks if the value can safely be converted to a long primitive.

Parameters: value The value validation is being performed on.

isShort

public static boolean isShort(String value)

Checks if the value can safely be converted to a short primitive.

Parameters: value The value validation is being performed on.

isUrl

public static boolean isUrl(String value)

Checks if a field is a valid url address.

If you need to modify what is considered valid then consider using the UrlValidator directly.

Parameters: value The value validation is being performed on.

matchRegexp

public static boolean matchRegexp(String value, String regexp)

Checks if the value matches the regular expression.

Parameters: value The value validation is being performed on. regexp The regular expression.

maxLength

public static boolean maxLength(String value, int max)

Checks if the value's length is less than or equal to the max.

Parameters: value The value validation is being performed on. max The maximum length.

minLength

public static boolean minLength(String value, int min)

Checks if the value's length is greater than or equal to the min.

Parameters: value The value validation is being performed on. min The minimum length.

validateCreditCardLuhnCheck

protected static boolean validateCreditCardLuhnCheck(String cardNumber)

Deprecated: This functionality has moved to CreditCardValidator.

Checks for a valid credit card number.

Parameters: cardNumber Credit Card Number.

validateCreditCardPrefixCheck

protected boolean validateCreditCardPrefixCheck(String cardNumber)

Deprecated: This functionality has move to CreditCardValidator.

Checks for a valid credit card number.

Parameters: cardNumber Credit Card Number.

Copyright (c) 2001-2004 Apache Software Foundation