org.jbeans
Class TypeConverterManager

java.lang.Object
  |
  +--org.jbeans.TypeConverterManager

public class TypeConverterManager

extends Object

This class is the manager for all the TypeConverters. It uses a Hashtable to store the converters and therefore is thread safe. A converter for a given type will be retrieved when the manager is queried for that type and all sub class of that type, unless another converter is registered for a sub class of the type. For example, registering a convert for the type Number would ensure that Integer, Double, Float, etc. used that converter for conversions. If a converter was registered for Number and another converter for Double, the the converter for Number would handle all sub-class of Number (Integer, etc.) except Double.

Author:

bpontarelli

Method Summary

static TypeConverter	getTypeConverter(Class type) Returns the type converter for the given type.
static TypeConverter	registerTypeConverter(Class type, TypeConverter converter) Registers the given converter with the given type
static TypeConverter	unregisterTypeConverter(Class type) Unregisters the given converter with the given type

Methods inherited from class java.lang.Object

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

Method Detail

getTypeConverter

public static TypeConverter getTypeConverter(Class type)

Returns the type converter for the given type. This converter is either the converter associated with the given type of associated with a super class of the given type (not interfaces). This principal also works with arrays. If the type is an array, then what happens is that the array type is asked for its component type using the method getComponentType and this type is used to query the manager. So, the converter registered for Number is returned Double[] is queried (because Double is queried and since no converter was register for it, then Number is checked).
Normal types work the exact same way. First the type is checked and then its parents are checked until Object is reached, in which case null is returned.
Primitive values are treated as their wrapper classes. So, if int.class is passed into this method (queried) then either a converter registered for Integer, or Number or null is returned depending on what converters have been registered so far.

Parameters:

type - The type to start with when looking for converters

Returns:

The converter or null if one was not found

registerTypeConverter

public static TypeConverter registerTypeConverter(Class type,
                                                  TypeConverter converter)

Registers the given converter with the given type

Parameters:

type - The type to register the converter for

converter - The convert to register with the given type

Returns:

The converter that was already registered with the given type or null if this is the first converter being registered for that type

unregisterTypeConverter

public static TypeConverter unregisterTypeConverter(Class type)

Unregisters the given converter with the given type

Parameters:

type - The type to unregister the converter

Returns:

The converter that was registered with the given type or null if no converter was registered for the given type