de.vc.util

Class ValueFactory

java.lang.Object

de.vc.util.ValueFactory

public class ValueFactory
extends java.lang.Object

The ValueFactory creates values (Objects) from various representation such as Strings, and backwards.

Method Summary

Modifier and Type	Method and Description
java.lang.String	createString(java.lang.Object obj) Creates a String-Representation of a value (object).
java.lang.String	createStringForced(java.lang.Object o) Creates a String-Representation of a value (object).
java.lang.Object	createValue(java.lang.Class clazz, java.lang.Object rep) Creates a new value (Object) from a String-Representation.
ValueManufacturer	getManufacturer(java.lang.Class type) Gets a registered Manufacturer of a special type (class).
static ValueFactory	instance() Gets the default instance of ValueFactory.
void	register(ValueManufacturer manufacturer) Registers a ValueManufacturer that is responsible for only one type (class) of values (objects).
void	unregister(ValueManufacturer manufacturer) Unregisters a ValueManufacturer that is responsible for only one type (class) of values (objects).

Methods inherited from class java.lang.Object

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

Method Detail

instance

public static ValueFactory instance()

Gets the default instance of ValueFactory. ValueManufactors for String, Integer, Long, Boolean, Double, Float are registered.

Returns:

ValueFactory

createValue

public java.lang.Object createValue(java.lang.Class clazz,
                                    java.lang.Object rep)

Creates a new value (Object) from a String-Representation.

Parameters:

clazz - Class of value (Object).

rep - Representation.

Returns:

New value or NULL, if nor manufacturer registered.

createString

public java.lang.String createString(java.lang.Object obj)
                              throws UnknownManufacturerException

Creates a String-Representation of a value (object). This can be another String than value.toString().

Parameters:

obj - Object.

Returns:

String-Representation or NULL, if no manufacturer registered.

Throws:

UnknownManufacturerException

createStringForced

public java.lang.String createStringForced(java.lang.Object o)

Creates a String-Representation of a value (object). If no manufacturer is defined for objects class, object.toString() is returned.

Parameters:

o - Object.

Returns:

String-Representation.

register

public void register(ValueManufacturer manufacturer)

Registers a ValueManufacturer that is responsible for only one type (class) of values (objects).

Parameters:

manufacturer - Manufacturer.

unregister

public void unregister(ValueManufacturer manufacturer)

Unregisters a ValueManufacturer that is responsible for only one type (class) of values (objects).

Parameters:

manufacturer - Manufacturer.

getManufacturer

public ValueManufacturer getManufacturer(java.lang.Class type)

Gets a registered Manufacturer of a special type (class).

Parameters:

type - Type.

Returns:

ValueManufacturer.