Package org.apache.commons.validator

Class GenericValidator

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.
See Also:

  • Constructor Summary

    Constructors
    Constructor
    Description
    GenericValidator()
     

  • Method Summary

    Modifier and Type
    Method
    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, String datePattern, boolean strict)
    Checks if the field is a valid date.
    static boolean
    isDate(String value, Locale locale)
    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 Details

  • Method Details

    • 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.

    • 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.

    • 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.

    • 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.

    • 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.

    • 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.

    • 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.

    • 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(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.

    • 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(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(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(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.

    • 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.

    • 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.

    • 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.

    • 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.

    • 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.

    • 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.

    • 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.

    • 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(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.

    • 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.