| java.lang.Object
 org.apache.commons.validator.routines.AbstractFormatValidator
org.apache.commons.validator.routines.AbstractNumberValidator
org.apache.commons.validator.routines.DoubleValidator
| DoubleValidator | | public class DoubleValidator extends AbstractNumberValidator (Code) | | Double Validation and Conversion routines (java.lang.Double).
This validator provides a number of methods for
validating/converting a String value to
a Double using java.text.NumberFormat
to parse either:
- using the default format for the default
Locale
- using a specified pattern with the default
Locale
- using the default format for a specified
Locale
- using a specified pattern with a specified
Locale
Use one of the isValid() methods to just validate or
one of the validate() methods to validate and receive a
converted Double value.
Once a value has been sucessfully converted the following
methods can be used to perform minimum, maximum and range checks:
minValue() checks whether the value is greater
than or equal to a specified minimum.maxValue() checks whether the value is less
than or equal to a specified maximum.isInRange() checks whether the value is within
a specified range of values.
So that the same mechanism used for parsing an input value
for validation can be used to format output, corresponding
format() methods are also provided. That is you can
format either:
- using the default format for the default
Locale
- using a specified pattern with the default
Locale
- using the default format for a specified
Locale
- using a specified pattern with a specified
Locale
version:
$Revision: 478334 $ $Date: 2006-11-22 21:31:54 +0000 (Wed, 22 Nov 2006) $
since:
Validator 1.3.0 |
| Method Summary | |
| public static DoubleValidator | getInstance()
Return a singleton instance of this validator. | | public boolean | isInRange(double value, double min, double max)
Check if the value is within a specified range.
Parameters:
value - The Number value to check.
Parameters:
min - The minimum value of the range.
Parameters:
max - The maximum value of the range. | | public boolean | isInRange(Double value, double min, double max)
Check if the value is within a specified range.
Parameters:
value - The Number value to check.
Parameters:
min - The minimum value of the range.
Parameters:
max - The maximum value of the range. | | public boolean | maxValue(double value, double max)
Check if the value is less than or equal to a maximum.
Parameters:
value - The value validation is being performed on.
Parameters:
max - The maximum value. | | public boolean | maxValue(Double value, double max)
Check if the value is less than or equal to a maximum.
Parameters:
value - The value validation is being performed on.
Parameters:
max - The maximum value. | | public boolean | minValue(double value, double min)
Check if the value is greater than or equal to a minimum.
Parameters:
value - The value validation is being performed on.
Parameters:
min - The minimum value. | | public boolean | minValue(Double value, double min)
Check if the value is greater than or equal to a minimum.
Parameters:
value - The value validation is being performed on.
Parameters:
min - The minimum value. | | protected Object | processParsedValue(Object value, Format formatter)
Convert the parsed value to a Double.
Parameters:
value - The parsed Number object created.
Parameters:
formatter - The Format used to parse the value with. | | public Double | validate(String value)
Validate/convert a Double using the default
Locale. | | public Double | validate(String value, String pattern)
Validate/convert a Double using the
specified pattern. | | public Double | validate(String value, Locale locale)
Validate/convert a Double using the
specified Locale. | | public Double | validate(String value, String pattern, Locale locale)
Validate/convert a Double using the
specified pattern and/ or Locale. |
| DoubleValidator | | public DoubleValidator()(Code) | | Construct a strict instance.
|
| DoubleValidator | | public DoubleValidator(boolean strict, int formatType)(Code) | | Construct an instance with the specified strict setting
and format type.
The formatType specified what type of
NumberFormat is created - valid types
are:
- AbstractNumberValidator.STANDARD_FORMAT -to create
standard number formats (the default).
- AbstractNumberValidator.CURRENCY_FORMAT -to create
currency number formats.
- AbstractNumberValidator.PERCENT_FORMAT -to create
percent number formats (the default).
Parameters:
strict - true if strict Format parsing should be used.
Parameters:
formatType - The NumberFormat type tocreate for validation, default is STANDARD_FORMAT. |
| getInstance | | public static DoubleValidator getInstance()(Code) | | Return a singleton instance of this validator.
A singleton instance of the DoubleValidator. |
| isInRange | | public boolean isInRange(double value, double min, double max)(Code) | | Check if the value is within a specified range.
Parameters:
value - The Number value to check.
Parameters:
min - The minimum value of the range.
Parameters:
max - The maximum value of the range. true if the value is within thespecified range. |
| isInRange | | public boolean isInRange(Double value, double min, double max)(Code) | | Check if the value is within a specified range.
Parameters:
value - The Number value to check.
Parameters:
min - The minimum value of the range.
Parameters:
max - The maximum value of the range. true if the value is within thespecified range. |
| maxValue | | public boolean maxValue(double value, double max)(Code) | | Check if the value is less than or equal to a maximum.
Parameters:
value - The value validation is being performed on.
Parameters:
max - The maximum value. true if the value is less thanor equal to the maximum. |
| maxValue | | public boolean maxValue(Double value, double max)(Code) | | Check if the value is less than or equal to a maximum.
Parameters:
value - The value validation is being performed on.
Parameters:
max - The maximum value. true if the value is less thanor equal to the maximum. |
| minValue | | public boolean minValue(double value, double min)(Code) | | Check if the value is greater than or equal to a minimum.
Parameters:
value - The value validation is being performed on.
Parameters:
min - The minimum value. true if the value is greater thanor equal to the minimum. |
| minValue | | public boolean minValue(Double value, double min)(Code) | | Check if the value is greater than or equal to a minimum.
Parameters:
value - The value validation is being performed on.
Parameters:
min - The minimum value. true if the value is greater thanor equal to the minimum. |
| processParsedValue | | protected Object processParsedValue(Object value, Format formatter)(Code) | | Convert the parsed value to a Double.
Parameters:
value - The parsed Number object created.
Parameters:
formatter - The Format used to parse the value with. The validated/converted Double value if valid or null if invalid. |
| validate | | public Double validate(String value)(Code) | | Validate/convert a Double using the default
Locale.
Parameters:
value - The value validation is being performed on. The parsed Double if valid or nullif invalid. |
| validate | | public Double validate(String value, String pattern)(Code) | | Validate/convert a Double using the
specified pattern.
Parameters:
value - The value validation is being performed on.
Parameters:
pattern - The pattern used to validate the value against. The parsed BigDecimal if valid or null if invalid. |
| validate | | public Double validate(String value, Locale locale)(Code) | | Validate/convert a Double using the
specified Locale.
Parameters:
value - The value validation is being performed on.
Parameters:
locale - The locale to use for the number format, system default if null. The parsed Double if valid or null if invalid. |
| validate | | public Double validate(String value, String pattern, Locale locale)(Code) | | Validate/convert a Double using the
specified pattern and/ or Locale.
Parameters:
value - The value validation is being performed on.
Parameters:
pattern - The pattern used to validate the value against, or thedefault for the Locale if null.
Parameters:
locale - The locale to use for the date format, system default if null. The parsed Double if valid or null if invalid. |
| Fields inherited from org.apache.commons.validator.routines.AbstractNumberValidator | final public static int CURRENCY_FORMAT(Code)(Java Doc)
final public static int PERCENT_FORMAT(Code)(Java Doc)
final public static int STANDARD_FORMAT(Code)(Java Doc)
|
| Methods inherited from org.apache.commons.validator.routines.AbstractNumberValidator | protected int determineScale(NumberFormat format)(Code)(Java Doc)
protected Format getFormat(String pattern, Locale locale)(Code)(Java Doc)
protected Format getFormat(Locale locale)(Code)(Java Doc)
public int getFormatType()(Code)(Java Doc)
public boolean isAllowFractions()(Code)(Java Doc)
public boolean isInRange(Number value, Number min, Number max)(Code)(Java Doc)
public boolean isValid(String value, String pattern, Locale locale)(Code)(Java Doc)
public boolean maxValue(Number value, Number max)(Code)(Java Doc)
public boolean minValue(Number value, Number min)(Code)(Java Doc)
protected Object parse(String value, String pattern, Locale locale)(Code)(Java Doc)
abstract protected Object processParsedValue(Object value, Format formatter)(Code)(Java Doc)
|
| Methods inherited from org.apache.commons.validator.routines.AbstractFormatValidator | public String format(Object value)(Code)(Java Doc)
public String format(Object value, String pattern)(Code)(Java Doc)
public String format(Object value, Locale locale)(Code)(Java Doc)
public String format(Object value, String pattern, Locale locale)(Code)(Java Doc)
protected String format(Object value, Format formatter)(Code)(Java Doc)
abstract protected Format getFormat(String pattern, Locale locale)(Code)(Java Doc)
public boolean isStrict()(Code)(Java Doc)
public boolean isValid(String value)(Code)(Java Doc)
public boolean isValid(String value, String pattern)(Code)(Java Doc)
public boolean isValid(String value, Locale locale)(Code)(Java Doc)
abstract public boolean isValid(String value, String pattern, Locale locale)(Code)(Java Doc)
protected Object parse(String value, Format formatter)(Code)(Java Doc)
abstract protected Object processParsedValue(Object value, Format formatter)(Code)(Java Doc)
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