er.extensions
Class ERXNumberFormatter

java.lang.Object
  java.text.Format
      com.webobjects.foundation.NSNumberFormatter
          er.extensions.ERXNumberFormatter

All Implemented Interfaces:

Cloneable, Serializable

public class ERXNumberFormatter

extends NSNumberFormatter

An extension to the number formatter. It will strip out the characters '%$,' when parsing a string and can scale values by setting a pattern like (/1024=)0.00 KB which will divide the actual value by 1024 or (*60;4=)0.00 which will multiply the actual value by 60. When used for parsing, the resulting value will be scaled to a scale of 4. So when the real value is 0.0165, the display value will be 0.99 and when this is re-entered, the resulting value will again be 0.0165.

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class java.text.Format

Format.Field

Field Summary

protected static String

DefaultKey

Fields inherited from class com.webobjects.foundation.NSNumberFormatter

_CLASS, _CurrencyPattern, _DecimalPattern, _IntegerPattern, DefaultPattern, NSDecimalNotANumber, RoundBankers, RoundDown, RoundPlain, RoundUp

Constructor Summary

ERXNumberFormatter()

ERXNumberFormatter(String pattern)
Public constructor

Method Summary

static Format	defaultNumberFormatterForObject(Object object)
StringBuffer	format(Object value, StringBuffer buffer, FieldPosition position) Overridden to perform optional conversions on the value given.
static NSNumberFormatter	numberFormatterForPattern(String pattern) Returns a shared instance for the specified pattern.
Object	parseObject(String aString) Strips out the ignored characters and optionally performs an operation on the value from the string to be parsed.
protected BigDecimal	performFormat(BigDecimal value) Override this in your subclass to provide for other operations when formatting a value.
protected BigDecimal	performParse(BigDecimal value) Override this in your subclass to provide for other operations when parsing a value.
protected void	setFactor(BigDecimal value)
void	setIgnoredChars(String value)
static void	setNumberFormatterForPattern(NSNumberFormatter formatter, String pattern) Sets a shared instance for the specified pattern.
protected void	setOperator(String value)
void	setPattern(String pattern) Overridden to search the pattern for operators and factors.
protected void	setScale(Integer value)
static NSNumberFormatter	sharedInstance() Returns the default shared instance

Methods inherited from class com.webobjects.foundation.NSNumberFormatter

allowsFloats, attributedStringForNil, attributedStringForNotANumber, attributedStringForZero, availableLocales, currencySymbol, decimalSeparator, defaultLocale, defaultLocalizesPattern, format, hasThousandSeparators, locale, localizesFormat, localizesPattern, maximum, minimum, negativeFormat, negativePattern, objectValueForString, parseObject, pattern, positiveFormat, positivePattern, roundingBehavior, setAllowsFloats, setAttributedStringForNil, setAttributedStringForNotANumber, setAttributedStringForZero, setCurrencySymbol, setDecimalSeparator, setDefaultLocale, setDefaultLocalizesPattern, setFormat, setHasThousandSeparators, setLocale, setLocalizesFormat, setLocalizesPattern, setMaximum, setMinimum, setNegativeFormat, setNegativePattern, setPositiveFormat, setPositivePattern, setRoundingBehavior, setStringForNotANumber, setStringForNull, setStringForZero, setThousandSeparator, stringForNotANumber, stringForNull, stringForObjectValue, stringForZero, thousandSeparator

Methods inherited from class java.text.Format

clone, format, formatToCharacterIterator

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DefaultKey

protected static final String DefaultKey

See Also:

Constant Field Values

Constructor Detail

ERXNumberFormatter

public ERXNumberFormatter(String pattern)

Public constructor

ERXNumberFormatter

public ERXNumberFormatter()

Method Detail

sharedInstance

public static NSNumberFormatter sharedInstance()

Returns the default shared instance

Returns:

shared instance

defaultNumberFormatterForObject

public static Format defaultNumberFormatterForObject(Object object)

Parameters:

object -

Returns:

numberFormatterForPattern

public static NSNumberFormatter numberFormatterForPattern(String pattern)

Returns a shared instance for the specified pattern.

Returns:

shared instance of formatter

setNumberFormatterForPattern

public static void setNumberFormatterForPattern(NSNumberFormatter formatter,
                                                String pattern)

Sets a shared instance for the specified pattern.

Returns:

shared instance of formatter

setIgnoredChars

public void setIgnoredChars(String value)

setFactor

protected void setFactor(BigDecimal value)

setOperator

protected void setOperator(String value)

setScale

protected void setScale(Integer value)

setPattern

public void setPattern(String pattern)

Overridden to search the pattern for operators and factors. The pattern should be '(' . operatorChar . factor . [';' scale ] . '=)' normalFormatterString

See Also:

NSNumberFormatter.setPattern(java.lang.String)

performFormat

protected BigDecimal performFormat(BigDecimal value)

Override this in your subclass to provide for other operations when formatting a value.

Parameters:

value -

Returns:

performParse

protected BigDecimal performParse(BigDecimal value)

Override this in your subclass to provide for other operations when parsing a value.

Parameters:

value -

Returns:

parseObject

public Object parseObject(String aString)
                   throws ParseException

Strips out the ignored characters and optionally performs an operation on the value from the string to be parsed.

Parameters:

aString - to be parsed

Returns:

the parsed object

Throws:

ParseException

format

public StringBuffer format(Object value,
                           StringBuffer buffer,
                           FieldPosition position)

Overridden to perform optional conversions on the value given.

See Also:

Format.format(java.lang.Object, java.lang.StringBuffer, java.text.FieldPosition)