adjustForLineEnding
private static int adjustForLineEnding(String value,
int lineEndLength)
Calculate an adjustment amount for line endings.
See Bug 37962 for the rational behind this.
value
- The value validation is being performed on.lineEndLength
- The length to use for line endings.
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.
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.
value
- The value validation is being performed on.
- true if the value can be converted to a Byte.
isCreditCard
public static boolean isCreditCard(String value)
Checks if the field is a valid credit card number.
value
- The value validation is being performed on.
- true if the value is valid Credit Card Number.
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.
value
- The value validation is being performed on.locale
- The locale to use for the date format, defaults to the
system default if null.
- true if the value can be converted to a Date.
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.
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.
- true if the value can be converted to a Date.
isDouble
public static boolean isDouble(String value)
Checks if the value can safely be converted to a double primitive.
value
- The value validation is being performed on.
- true if the value can be converted to a Double.
isEmail
public static boolean isEmail(String value)
Checks if a field has a valid e-mail address.
value
- The value validation is being performed on.
- true if the value is valid Email Address.
isFloat
public static boolean isFloat(String value)
Checks if the value can safely be converted to a float primitive.
value
- The value validation is being performed on.
- true if the value can be converted to a Float.
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).
value
- The value validation is being performed on.min
- The minimum value of the range.max
- The maximum value of the range.
- true if the value is in the specified 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).
value
- The value validation is being performed on.min
- The minimum value of the range.max
- The maximum value of the range.
- true if the value is in the specified 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).
value
- The value validation is being performed on.min
- The minimum value of the range.max
- The maximum value of the range.
- true if the value is in the specified 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).
value
- The value validation is being performed on.min
- The minimum value of the range.max
- The maximum value of the range.
- true if the value is in the specified 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).
value
- The value validation is being performed on.min
- The minimum value of the range.max
- The maximum value of the range.
- true if the value is in the specified 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).
value
- The value validation is being performed on.min
- The minimum value of the range.max
- The maximum value of the range.
- true if the value is in the specified range.
isInt
public static boolean isInt(String value)
Checks if the value can safely be converted to a int primitive.
value
- The value validation is being performed on.
- true if the value can be converted to an Integer.
isLong
public static boolean isLong(String value)
Checks if the value can safely be converted to a long primitive.
value
- The value validation is being performed on.
- true if the value can be converted to a Long.
isShort
public static boolean isShort(String value)
Checks if the value can safely be converted to a short primitive.
value
- The value validation is being performed on.
- true if the value can be converted to a Short.
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.
value
- The value validation is being performed on.
- true if the value is valid Url.
matchRegexp
public static boolean matchRegexp(String value,
String regexp)
Checks if the value matches the regular expression.
value
- The value validation is being performed on.regexp
- The regular expression.
- true if matches 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.
value
- The value validation is being performed on.max
- The maximum length.
- true if the value's length is less than the specified maximum.
maxLength
public static boolean maxLength(String value,
int max,
int lineEndLength)
Checks if the value's adjusted length is less than or equal to the max.
value
- The value validation is being performed on.max
- The maximum length.lineEndLength
- The length to use for line endings.
- true if the value's length is less than the specified maximum.
maxValue
public static boolean maxValue(double value,
double max)
Checks if the value is less than or equal to the max.
value
- The value validation is being performed on.max
- The maximum numeric value.
- true if the value is <= the specified maximum.
maxValue
public static boolean maxValue(float value,
float max)
Checks if the value is less than or equal to the max.
value
- The value validation is being performed on.max
- The maximum numeric value.
- true if the value is <= the specified maximum.
maxValue
public static boolean maxValue(int value,
int max)
Checks if the value is less than or equal to the max.
value
- The value validation is being performed on.max
- The maximum numeric value.
- true if the value is <= the specified maximum.
maxValue
public static boolean maxValue(long value,
long max)
Checks if the value is less than or equal to the max.
value
- The value validation is being performed on.max
- The maximum numeric value.
- true if the value is <= the specified maximum.
minLength
public static boolean minLength(String value,
int min)
Checks if the value's length is greater than or equal to the min.
value
- The value validation is being performed on.min
- The minimum length.
- true if the value's length is more than the specified minimum.
minLength
public static boolean minLength(String value,
int min,
int lineEndLength)
Checks if the value's adjusted length is greater than or equal to the min.
value
- The value validation is being performed on.min
- The minimum length.lineEndLength
- The length to use for line endings.
- true if the value's length is more than the specified minimum.
minValue
public static boolean minValue(double value,
double min)
Checks if the value is greater than or equal to the min.
value
- The value validation is being performed on.min
- The minimum numeric value.
- true if the value is >= the specified minimum.
minValue
public static boolean minValue(float value,
float min)
Checks if the value is greater than or equal to the min.
value
- The value validation is being performed on.min
- The minimum numeric value.
- true if the value is >= the specified minimum.
minValue
public static boolean minValue(int value,
int min)
Checks if the value is greater than or equal to the min.
value
- The value validation is being performed on.min
- The minimum numeric value.
- true if the value is >= the specified minimum.
minValue
public static boolean minValue(long value,
long min)
Checks if the value is greater than or equal to the min.
value
- The value validation is being performed on.min
- The minimum numeric value.
- true if the value is >= the specified minimum.