GenericValidator (Apache Commons Validator 1.6 API)

java.lang.Object
- org.apache.commons.validator.GenericValidator

All Implemented Interfaces:

Serializable
```
public class GenericValidator
extends Object
implements Serializable
```
This class contains basic methods for performing validations.

Version:

$Revision: 1649191 $

See Also:
Serialized Form

Constructor Summary

Constructors
Constructor and Description

GenericValidator()

Constructors
Constructor and Description
`GenericValidator()`

Method Summary

Methods
Modifier and Type	Method and Description
`static boolean`	`isBlankOrNull(String value)` Checks if the field isn't null and length of the field is greater than zero not including whitespace.
`static boolean`	`isByte(String value)` Checks if the value can safely be converted to a byte primitive.
`static boolean`	`isCreditCard(String value)` Checks if the field is a valid credit card number.
`static boolean`	`isDate(String value, Locale locale)` Checks if the field is a valid date.
`static boolean`	`isDate(String value, String datePattern, boolean strict)` Checks if the field is a valid date.
`static boolean`	`isDouble(String value)` Checks if the value can safely be converted to a double primitive.
`static boolean`	`isEmail(String value)` Checks if a field has a valid e-mail address.
`static boolean`	`isFloat(String value)` Checks if the value can safely be converted to a float primitive.
`static boolean`	`isInRange(byte value, byte min, byte max)` Checks if a value is within a range (min & max specified in the vars attribute).
`static boolean`	`isInRange(double value, double min, double max)` Checks if a value is within a range (min & max specified in the vars attribute).
`static boolean`	`isInRange(float value, float min, float max)` Checks if a value is within a range (min & max specified in the vars attribute).
`static boolean`	`isInRange(int value, int min, int max)` Checks if a value is within a range (min & max specified in the vars attribute).
`static boolean`	`isInRange(long value, long min, long max)` Checks if a value is within a range (min & max specified in the vars attribute).
`static boolean`	`isInRange(short value, short min, short max)` Checks if a value is within a range (min & max specified in the vars attribute).
`static boolean`	`isInt(String value)` Checks if the value can safely be converted to a int primitive.
`static boolean`	`isLong(String value)` Checks if the value can safely be converted to a long primitive.
`static boolean`	`isShort(String value)` Checks if the value can safely be converted to a short primitive.
`static boolean`	`isUrl(String value)` Checks if a field is a valid url address.
`static boolean`	`matchRegexp(String value, String regexp)` Checks if the value matches the regular expression.
`static boolean`	`maxLength(String value, int max)` Checks if the value's length is less than or equal to the max.
`static boolean`	`maxLength(String value, int max, int lineEndLength)` Checks if the value's adjusted length is less than or equal to the max.
`static boolean`	`maxValue(double value, double max)` Checks if the value is less than or equal to the max.
`static boolean`	`maxValue(float value, float max)` Checks if the value is less than or equal to the max.
`static boolean`	`maxValue(int value, int max)` Checks if the value is less than or equal to the max.
`static boolean`	`maxValue(long value, long max)` Checks if the value is less than or equal to the max.
`static boolean`	`minLength(String value, int min)` Checks if the value's length is greater than or equal to the min.
`static boolean`	`minLength(String value, int min, int lineEndLength)` Checks if the value's adjusted length is greater than or equal to the min.
`static boolean`	`minValue(double value, double min)` Checks if the value is greater than or equal to the min.
`static boolean`	`minValue(float value, float min)` Checks if the value is greater than or equal to the min.
`static boolean`	`minValue(int value, int min)` Checks if the value is greater than or equal to the min.
`static boolean`	`minValue(long value, long min)` Checks if the value is greater than or equal to the min.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - GenericValidator
```
public GenericValidator()
```
- Method Detail
  - 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.
    
    Returns:
    true if blank or null.
  - 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.
    
    Returns:
    true if matches the regular expression.
  - 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.
    
    Returns:
    true if the value can be converted to a Byte.
  - 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.
    
    Returns:
    true if the value can be converted to a Short.
  - 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.
    
    Returns:
    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.
    
    Parameters:
    value - The value validation is being performed on.
    
    Returns:
    true if the value can be converted to a Long.
  - 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.
    
    Returns:
    true if the value can be converted to a Float.
  - 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.
    
    Returns:
    true if the value can be converted to a Double.
  - 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 system default if null.
    
    Returns:
    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.
    
    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.
    
    Returns:
    true if the value can be converted to a Date.
  - 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.
    
    Returns:
    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).
    
    Parameters:
    value - The value validation is being performed on.
    min - The minimum value of the range.
    max - The maximum value of the range.
    
    Returns:
    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).
    
    Parameters:
    value - The value validation is being performed on.
    min - The minimum value of the range.
    max - The maximum value of the range.
    
    Returns:
    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).
    
    Parameters:
    value - The value validation is being performed on.
    min - The minimum value of the range.
    max - The maximum value of the range.
    
    Returns:
    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).
    
    Parameters:
    value - The value validation is being performed on.
    min - The minimum value of the range.
    max - The maximum value of the range.
    
    Returns:
    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).
    
    Parameters:
    value - The value validation is being performed on.
    min - The minimum value of the range.
    max - The maximum value of the range.
    
    Returns:
    true if the value is in the specified range.
  - 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.
    
    Returns:
    true if the value is valid Credit Card Number.
  - 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.
    
    Returns:
    true if the value is valid Email Address.
  - 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.
    
    Returns:
    true if the value is valid Url.
  - 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.
    
    Returns:
    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.
    
    Parameters:
    value - The value validation is being performed on.
    max - The maximum length.
    lineEndLength - The length to use for line endings.
    
    Returns:
    true if the value's length is less than 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.
    
    Parameters:
    value - The value validation is being performed on.
    min - The minimum length.
    
    Returns:
    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.
    
    Parameters:
    value - The value validation is being performed on.
    min - The minimum length.
    lineEndLength - The length to use for line endings.
    
    Returns:
    true if the value's length is more than the specified minimum.
  - minValue
```
public static boolean minValue(int value,
               int min)
```
    Checks if the value is greater than or equal to the min.
    
    Parameters:
    value - The value validation is being performed on.
    min - The minimum numeric value.
    
    Returns:
    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.
    
    Parameters:
    value - The value validation is being performed on.
    min - The minimum numeric value.
    
    Returns:
    true if the value is >= the specified minimum.
  - minValue
```
public static boolean minValue(double value,
               double min)
```
    Checks if the value is greater than or equal to the min.
    
    Parameters:
    value - The value validation is being performed on.
    min - The minimum numeric value.
    
    Returns:
    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.
    
    Parameters:
    value - The value validation is being performed on.
    min - The minimum numeric value.
    
    Returns:
    true if the value is >= the specified minimum.
  - maxValue
```
public static boolean maxValue(int value,
               int max)
```
    Checks if the value is less than or equal to the max.
    
    Parameters:
    value - The value validation is being performed on.
    max - The maximum numeric value.
    
    Returns:
    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.
    
    Parameters:
    value - The value validation is being performed on.
    max - The maximum numeric value.
    
    Returns:
    true if the value is <= the specified maximum.
  - maxValue
```
public static boolean maxValue(double value,
               double max)
```
    Checks if the value is less than or equal to the max.
    
    Parameters:
    value - The value validation is being performed on.
    max - The maximum numeric value.
    
    Returns:
    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.
    
    Parameters:
    value - The value validation is being performed on.
    max - The maximum numeric value.
    
    Returns:
    true if the value is <= the specified maximum.

Class GenericValidator

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

GenericValidator

Method Detail

isBlankOrNull

matchRegexp

isByte

isShort

isInt

isLong

isFloat

isDouble

isDate

isDate

isInRange

isInRange

isInRange

isInRange

isInRange

isInRange

isCreditCard

isEmail

isUrl

maxLength

maxLength

minLength

minLength

minValue

minValue

minValue

minValue

maxValue

maxValue

maxValue

maxValue