Class WDoubleValidator

java.lang.Object
eu.webtoolkit.jwt.WValidator
eu.webtoolkit.jwt.WDoubleValidator

public class WDoubleValidator extends WValidator
A validator for validating floating point user input.

This validator checks whether user input is a double in the pre-defined range.

i18n

The strings used in this class can be translated by overriding the default values for the following localization keys: Wt.WDoubleValidator.NotANumber: Must be a number Wt.WDoubleValidator.TooSmall: The number must be larger than {1} Wt.WDoubleValidator.BadRange: The number must be in the range {1} to {2} Wt.WDoubleValidator.TooLarge: The number must be smaller than {1}

  • Constructor Details

    • WDoubleValidator

      public WDoubleValidator()
      Creates a new double validator that accepts any double.

      The validator will accept numbers using the current locale's format.

    • WDoubleValidator

      public WDoubleValidator(double bottom, double top)
      Creates a new double validator that accepts double within the given range.

      The validator will accept numbers using the current locale's format.

  • Method Details

    • getBottom

      public double getBottom()
      Returns the bottom of the valid double range.
    • setBottom

      public void setBottom(double bottom)
      Sets the bottom of the valid double range.

      The default value is the minimum double value.

    • getTop

      public double getTop()
      Returns the top of the valid double range.
    • setTop

      public void setTop(double top)
      Sets the top of the valid double range.

      The default value is the maximum double value.

    • setRange

      public void setRange(double bottom, double top)
      Sets the range of valid doubles.
    • validate

      public WValidator.Result validate(String input)
      Validates the given input.

      The input is considered valid only when it is blank for a non-mandatory field, or represents a double within the valid range.

      Overrides:
      validate in class WValidator
    • setInvalidNotANumberText

      public void setInvalidNotANumberText(CharSequence text)
      Sets the message to display when the input is not a number.

      The default value is "Must be a number."

    • getInvalidNotANumberText

      public WString getInvalidNotANumberText()
      Returns the message displayed when the input is not a number.

      See Also:
    • setInvalidTooSmallText

      public void setInvalidTooSmallText(CharSequence text)
      Sets the message to display when the number is too small.

      Depending on whether getBottom() and getTop() are real bounds, the default message is "The number must be between {1} and {2}" or "The number must be larger than {1}".

    • getInvalidTooSmallText

      public WString getInvalidTooSmallText()
      Returns the message displayed when the number is too small.

      See Also:
    • setInvalidTooLargeText

      public void setInvalidTooLargeText(CharSequence text)
      Sets the message to display when the number is too large.

      Depending on whether getBottom() and getTop() are real bounds, the default message is "The number must be between {1} and {2}" or "The number must be smaller than {2}".

    • getInvalidTooLargeText

      public WString getInvalidTooLargeText()
      Returns the message displayed when the number is too large.

      See Also:
    • setIgnoreTrailingSpaces

      public void setIgnoreTrailingSpaces(boolean b)
      If true the validator will ignore trailing spaces.

      See Also:
    • isIgnoreTrailingSpaces

      public boolean isIgnoreTrailingSpaces()
      Indicates whether the validator should ignore the trailing spaces.

      See Also:
    • getJavaScriptValidate

      public String getJavaScriptValidate()
      Description copied from class: WValidator
      Creates a Javascript object that validates the input.

      The JavaScript expression should evaluate to an object which contains a validate(text) function, which returns an object that contains the following two fields:

      • fields: a boolean valid,
      • a message that indicates the problem if not valid.

      Returns an empty string if the validator does not provide a client-side validation implementationq.

      Note: The signature and contract changed changed in JWt 3.1.9.

      Overrides:
      getJavaScriptValidate in class WValidator
      See Also: