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org.apache.commons.beanutils

Class ConvertUtils

public class ConvertUtils
extends java.lang.Object
Utility methods for converting String scalar values to objects of the specified Class, String arrays to arrays of the specified Class.

For more details, see ConvertUtilsBean which provides the implementations for these methods.

Version:
$Revision: 556229 $ $Date: 2007-07-14 07:11:19 +0100 (Sat, 14 Jul 2007) $
Authors:
Craig R. McClanahan
Ralph Schaer
Chris Audley
See Also:
ConvertUtilsBean

Method Summary

static String
convert(Object value)
Convert the specified value into a String.
static Object
convert(Object value, Class targetType)
Convert the value to an object of the specified class (if possible).
static Object
convert(String value, Class clazz)
Convert the specified value to an object of the specified class (if possible).
static Object
convert(String[] values, Class clazz)
Convert an array of specified values to an array of objects of the specified class (if possible).
static void
deregister()
Remove all registered Converters, and re-establish the standard Converters.
static void
deregister(Class clazz)
Remove any registered Converter for the specified destination Class.
static boolean
getDefaultBoolean()
Deprecated. Register replacement converters for Boolean.TYPE and Boolean.class instead
static byte
getDefaultByte()
Deprecated. Register replacement converters for Byte.TYPE and Byte.class instead
static char
getDefaultCharacter()
Deprecated. Register replacement converters for Character.TYPE and Character.class instead
static double
getDefaultDouble()
Deprecated. Register replacement converters for Double.TYPE and Double.class instead
static float
getDefaultFloat()
Deprecated. Register replacement converters for Float.TYPE and Float.class instead
static int
getDefaultInteger()
Deprecated. Register replacement converters for Integer.TYPE and Integer.class instead
static long
getDefaultLong()
Deprecated. Register replacement converters for Long.TYPE and Long.class instead
static short
getDefaultShort()
Deprecated. Register replacement converters for Short.TYPE and Short.class instead
static Converter
lookup(Class clazz)
Look up and return any registered Converter for the specified destination class; if there is no registered Converter, return null.
static Converter
lookup(Class sourceType, Class targetType)
Look up and return any registered Converter for the specified source and destination class; if there is no registered Converter, return null.
static void
register(Converter converter, Class clazz)
Register a custom Converter for the specified destination Class, replacing any previously registered Converter.
static void
setDefaultBoolean(boolean newDefaultBoolean)
Deprecated. Register replacement converters for Boolean.TYPE and Boolean.class instead
static void
setDefaultByte(byte newDefaultByte)
Deprecated. Register replacement converters for Byte.TYPE and Byte.class instead
static void
setDefaultCharacter(char newDefaultCharacter)
Deprecated. Register replacement converters for Character.TYPE and Character.class instead
static void
setDefaultDouble(double newDefaultDouble)
Deprecated. Register replacement converters for Double.TYPE and Double.class instead
static void
setDefaultFloat(float newDefaultFloat)
Deprecated. Register replacement converters for Float.TYPE and Float.class instead
static void
setDefaultInteger(int newDefaultInteger)
Deprecated. Register replacement converters for Integer.TYPE and Integer.class instead
static void
setDefaultLong(long newDefaultLong)
Deprecated. Register replacement converters for Long.TYPE and Long.class instead
static void
setDefaultShort(short newDefaultShort)
Deprecated. Register replacement converters for Short.TYPE and Short.class instead

Method Details

convert

public static String convert(Object value)
Convert the specified value into a String.

For more details see ConvertUtilsBean.

Parameters:
value - Value to be converted (may be null)
Returns:
The converted String value
See Also:
ConvertUtilsBean.convert(Object)

convert

public static Object convert(Object value,
                             Class targetType)
Convert the value to an object of the specified class (if possible).
Parameters:
value - Value to be converted (may be null)
targetType - Class of the value to be converted to
Returns:
The converted value

convert

public static Object convert(String value,
                             Class clazz)
Convert the specified value to an object of the specified class (if possible). Otherwise, return a String representation of the value.

For more details see ConvertUtilsBean.

Parameters:
value - Value to be converted (may be null)
clazz - Java class to be converted to
Returns:
The converted value
See Also:
ConvertUtilsBean.convert(String,Class)

convert

public static Object convert(String[] values,
                             Class clazz)
Convert an array of specified values to an array of objects of the specified class (if possible).

For more details see ConvertUtilsBean.

Parameters:
values - Array of values to be converted
clazz - Java array or element class to be converted to
Returns:
The converted value
See Also:
ConvertUtilsBean.convert(String[],Class)

deregister

public static void deregister()
Remove all registered Converters, and re-establish the standard Converters.

For more details see ConvertUtilsBean.

See Also:
ConvertUtilsBean.deregister()

deregister

public static void deregister(Class clazz)
Remove any registered Converter for the specified destination Class.

For more details see ConvertUtilsBean.

Parameters:
clazz - Class for which to remove a registered Converter
See Also:
ConvertUtilsBean.deregister(Class)

getDefaultBoolean

public static boolean getDefaultBoolean()

Deprecated. Register replacement converters for Boolean.TYPE and Boolean.class instead

Gets the default value for Boolean conversions.
Returns:
The default Boolean value

getDefaultByte

public static byte getDefaultByte()

Deprecated. Register replacement converters for Byte.TYPE and Byte.class instead

Gets the default value for Byte conversions.
Returns:
The default Byte value

getDefaultCharacter

public static char getDefaultCharacter()

Deprecated. Register replacement converters for Character.TYPE and Character.class instead

Gets the default value for Character conversions.
Returns:
The default Character value

getDefaultDouble

public static double getDefaultDouble()

Deprecated. Register replacement converters for Double.TYPE and Double.class instead

Gets the default value for Double conversions.
Returns:
The default Double value

getDefaultFloat

public static float getDefaultFloat()

Deprecated. Register replacement converters for Float.TYPE and Float.class instead

Get the default value for Float conversions.
Returns:
The default Float value

getDefaultInteger

public static int getDefaultInteger()

Deprecated. Register replacement converters for Integer.TYPE and Integer.class instead

Gets the default value for Integer conversions.
Returns:
The default Integer value

getDefaultLong

public static long getDefaultLong()

Deprecated. Register replacement converters for Long.TYPE and Long.class instead

Gets the default value for Long conversions.
Returns:
The default Long value

getDefaultShort

public static short getDefaultShort()

Deprecated. Register replacement converters for Short.TYPE and Short.class instead

Gets the default value for Short conversions.
Returns:
The default Short value

lookup

public static Converter lookup(Class clazz)
Look up and return any registered Converter for the specified destination class; if there is no registered Converter, return null.

For more details see ConvertUtilsBean.

Parameters:
clazz - Class for which to return a registered Converter
Returns:
The registered Converter or null if not found
See Also:
ConvertUtilsBean.lookup(Class)

lookup

public static Converter lookup(Class sourceType,
                               Class targetType)
Look up and return any registered Converter for the specified source and destination class; if there is no registered Converter, return null.
Parameters:
sourceType - Class of the value being converted
targetType - Class of the value to be converted to
Returns:
The registered Converter or null if not found

register

public static void register(Converter converter,
                            Class clazz)
Register a custom Converter for the specified destination Class, replacing any previously registered Converter.

For more details see ConvertUtilsBean.

Parameters:
converter - Converter to be registered
clazz - Destination class for conversions performed by this Converter
See Also:
ConvertUtilsBean.register(Converter,Class)

setDefaultBoolean

public static void setDefaultBoolean(boolean newDefaultBoolean)

Deprecated. Register replacement converters for Boolean.TYPE and Boolean.class instead

Sets the default value for Boolean conversions.
Parameters:
newDefaultBoolean - The default Boolean value

setDefaultByte

public static void setDefaultByte(byte newDefaultByte)

Deprecated. Register replacement converters for Byte.TYPE and Byte.class instead

Sets the default value for Byte conversions.
Parameters:
newDefaultByte - The default Byte value

setDefaultCharacter

public static void setDefaultCharacter(char newDefaultCharacter)

Deprecated. Register replacement converters for Character.TYPE and Character.class instead

Sets the default value for Character conversions.
Parameters:
newDefaultCharacter - The default Character value

setDefaultDouble

public static void setDefaultDouble(double newDefaultDouble)

Deprecated. Register replacement converters for Double.TYPE and Double.class instead

Sets the default value for Double conversions.
Parameters:
newDefaultDouble - The default Double value

setDefaultFloat

public static void setDefaultFloat(float newDefaultFloat)

Deprecated. Register replacement converters for Float.TYPE and Float.class instead

Sets the default value for Float conversions.
Parameters:
newDefaultFloat - The default Float value

setDefaultInteger

public static void setDefaultInteger(int newDefaultInteger)

Deprecated. Register replacement converters for Integer.TYPE and Integer.class instead

Sets the default value for Integer conversions.
Parameters:
newDefaultInteger - The default Integer value

setDefaultLong

public static void setDefaultLong(long newDefaultLong)

Deprecated. Register replacement converters for Long.TYPE and Long.class instead

Sets the default value for Long conversions.
Parameters:
newDefaultLong - The default Long value

setDefaultShort

public static void setDefaultShort(short newDefaultShort)

Deprecated. Register replacement converters for Short.TYPE and Short.class instead

Sets the default value for Short conversions.
Parameters:
newDefaultShort - The default Short value

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