org.apache.commons.validator.routines
public class DoubleValidator extends AbstractNumberValidator
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:
Locale
Locale
Locale
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:
Locale
Locale
Locale
Locale
Since: Validator 1.3.0
Version: $Revision: 478334 $ $Date: 2006-11-22 21:31:54 +0000 (Wed, 22 Nov 2006) $
Field Summary | |
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static DoubleValidator | VALIDATOR |
Constructor Summary | |
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DoubleValidator()
Construct a strict instance. | |
DoubleValidator(boolean strict, int formatType) Construct an instance with the specified strict setting and format type. The
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Method Summary | |
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static DoubleValidator | getInstance()
Return a singleton instance of this validator. |
boolean | isInRange(double value, double min, double max)
Check if the value is within a specified range.
|
boolean | isInRange(Double value, double min, double max)
Check if the value is within a specified range.
|
boolean | maxValue(double value, double max)
Check if the value is less than or equal to a maximum.
|
boolean | maxValue(Double value, double max)
Check if the value is less than or equal to a maximum.
|
boolean | minValue(double value, double min)
Check if the value is greater than or equal to a minimum.
|
boolean | minValue(Double value, double min)
Check if the value is greater than or equal to a minimum.
|
protected Object | processParsedValue(Object value, Format formatter)
Convert the parsed value to a Double .
|
Double | validate(String value) Validate/convert a |
Double | validate(String value, String pattern) Validate/convert a |
Double | validate(String value, Locale locale) Validate/convert a |
Double | validate(String value, String pattern, Locale locale) Validate/convert a |
Construct an instance with the specified strict setting and format type.
The formatType
specified what type of
NumberFormat
is created - valid types
are:
Parameters: strict true
if strict
Format
parsing should be used. formatType The NumberFormat
type to
create for validation, default is STANDARD_FORMAT.
Returns: A singleton instance of the DoubleValidator.
Parameters: value The Number
value to check. min The minimum value of the range. max The maximum value of the range.
Returns: true
if the value is within the
specified range.
Parameters: value The Number
value to check. min The minimum value of the range. max The maximum value of the range.
Returns: true
if the value is within the
specified range.
Parameters: value The value validation is being performed on. max The maximum value.
Returns: true
if the value is less than
or equal to the maximum.
Parameters: value The value validation is being performed on. max The maximum value.
Returns: true
if the value is less than
or equal to the maximum.
Parameters: value The value validation is being performed on. min The minimum value.
Returns: true
if the value is greater than
or equal to the minimum.
Parameters: value The value validation is being performed on. min The minimum value.
Returns: true
if the value is greater than
or equal to the minimum.
Double
.
Parameters: value The parsed Number
object created. formatter The Format used to parse the value with.
Returns: The validated/converted Double
value if valid
or null
if invalid.
Validate/convert a Double
using the default
Locale
.
Parameters: value The value validation is being performed on.
Returns: The parsed Double
if valid or null
if invalid.
Validate/convert a Double
using the
specified pattern.
Parameters: value The value validation is being performed on. pattern The pattern used to validate the value against.
Returns: The parsed BigDecimal
if valid or null
if invalid.
Validate/convert a Double
using the
specified Locale
.
Parameters: value The value validation is being performed on. locale The locale to use for the number format, system default if null.
Returns: The parsed Double
if valid or null
if invalid.
Validate/convert a Double
using the
specified pattern and/ or Locale
.
Parameters: value The value validation is being performed on. pattern The pattern used to validate the value against, or the
default for the Locale
if null
. locale The locale to use for the date format, system default if null.
Returns: The parsed Double
if valid or null
if invalid.