Package com.ocs.dynamo.utils

Class NumberUtils

java.lang.Object

com.ocs.dynamo.utils.NumberUtils

public final class NumberUtils
extends Object

Utility methods for dealing with numbers

Author:

bas.rutten

Method Summary

Modifier and Type	Method	Description
static String	bigDecimalToString(boolean currency, boolean percentage, boolean useGrouping, int precision, BigDecimal value, Locale locale, String currencySymbol)	* Converts a BigDecimal value to a String
static String	doubleToString(boolean currency, boolean percentage, boolean useGrouping, int precision, Double value, Locale locale, String currencySymbol)	Converts a double to a String
static String	format(Object value)	Formats a value
static String	fractionalToString(boolean currency, boolean percentage, boolean useGrouping, int precision, Number value, Locale locale, String currencySymbol)	Converts a fractional value to a String
static String	integerToString(boolean grouping, boolean percentage, Integer value, Locale locale)	Converts an Integer to a String, using the Vaadin converters
static boolean	isDouble(Class<?> clazz)	Checks whether a class is a double (either wrapper or primitive)
static boolean	isDouble(Object value)	Checks if an object is a double (either wrapper or primitive)
static boolean	isFloat(Class<?> clazz)	Checks if a class is a float (either wrapper or primitive)
static boolean	isInteger(Class<?> clazz)	Checks if a class is an integer (either wrapper or primitive)
static boolean	isInteger(Object value)	Checks if an object is an integer (either wrapper or primitive)
static boolean	isLong(Class<?> clazz)	Checks if a class is a long (either wrapper or primitive)
static boolean	isLong(Object value)	Checks if an object is a Long (either primitive or wrapper)
static boolean	isNumeric(Class<?> clazz)	Indicates whether a certain class is a numeric class (either a primitive or a wrapper that extends the Number class) that is supported by the framework
static String	longToString(boolean grouping, boolean percentage, Long value, Locale locale)	Converts an Long to a String, using the Vaadin converters
static <T> String	numberToString(AttributeModel am, T value, boolean grouping, Locale locale, String currencySymbol)	Converts a number to a String

Methods inherited from class java.lang.Object

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

Method Detail

bigDecimalToString

public static String bigDecimalToString(boolean currency,
                                        boolean percentage,
                                        boolean useGrouping,
                                        int precision,
                                        BigDecimal value,
                                        Locale locale,
                                        String currencySymbol)

* Converts a BigDecimal value to a String

Parameters:

currency - whether the value represents a currency

percentage - whether the value represents a percentage

useGrouping - whether to use a thousand grouping

value - the value

currencySymbol - the currency symbol

locale - the locale to use

Returns:

format

public static String format(Object value)

Formats a value

Parameters:

value - the value to format

Returns:

doubleToString

public static String doubleToString(boolean currency,
                                    boolean percentage,
                                    boolean useGrouping,
                                    int precision,
                                    Double value,
                                    Locale locale,
                                    String currencySymbol)

Converts a double to a String

Parameters:

currency - whether to include a currency symbol

percentage - whether to include a percentage sign

useGrouping - whether to use a thousands grouping separator

precision - the desired precision

value - the value to convert

currencySymbol - the currency symbol to use

locale - the locale to use

Returns:

fractionalToString

public static String fractionalToString(boolean currency,
                                        boolean percentage,
                                        boolean useGrouping,
                                        int precision,
                                        Number value,
                                        Locale locale,
                                        String currencySymbol)

Converts a fractional value to a String

Parameters:

currency - whether to include a currency symbol

percentage - whether to include a percentage sign

useGrouping - whether to use a thousands grouping separator

precision - the desired precision

value - the value to convert

currencySymbol - the currency symbol to use

locale - the locale to use

Returns:

integerToString

public static String integerToString(boolean grouping,
                                     boolean percentage,
                                     Integer value,
                                     Locale locale)

Converts an Integer to a String, using the Vaadin converters

Parameters:

grouping - indicates whether grouping separators must be used

value - the value to convert

locale - the locale

Returns:

isDouble

public static boolean isDouble(Class<?> clazz)

Checks whether a class is a double (either wrapper or primitive)

Parameters:

clazz -

Returns:

isDouble

public static boolean isDouble(Object value)

Checks if an object is a double (either wrapper or primitive)

Parameters:

value -

Returns:

isFloat

public static boolean isFloat(Class<?> clazz)

Checks if a class is a float (either wrapper or primitive)

Parameters:

clazz - the class to check

Returns:

isInteger

public static boolean isInteger(Class<?> clazz)

Checks if a class is an integer (either wrapper or primitive)

Parameters:

clazz - the class to check

Returns:

isInteger

public static boolean isInteger(Object value)

Checks if an object is an integer (either wrapper or primitive)

Parameters:

value - the value to check

Returns:

isLong

public static boolean isLong(Class<?> clazz)

Checks if a class is a long (either wrapper or primitive)

Parameters:

clazz - the class to check

Returns:

isLong

public static boolean isLong(Object value)

Checks if an object is a Long (either primitive or wrapper)

Parameters:

value - the value to check

Returns:

isNumeric

public static boolean isNumeric(Class<?> clazz)

Indicates whether a certain class is a numeric class (either a primitive or a wrapper that extends the Number class) that is supported by the framework

Parameters:

clazz -

Returns:

longToString

public static String longToString(boolean grouping,
                                  boolean percentage,
                                  Long value,
                                  Locale locale)

Converts an Long to a String, using the Vaadin converters

Parameters:

grouping - indicates whether grouping separators must be used

value - the value to convert

locale - the locale

Returns:

numberToString

public static <T> String numberToString(AttributeModel am,
                                        T value,
                                        boolean grouping,
                                        Locale locale,
                                        String currencySymbol)

Converts a number to a String

Parameters:

am - the attribute model of the attribute to convert

value - the value to convert

grouping -

locale -

currencySymbol -

Returns: