javax.rad.type
Class NullType

java.lang.Object
  javax.rad.type.AbstractType<Object>
      javax.rad.type.NullType

All Implemented Interfaces:

IType<Object>

public class NullType
extends AbstractType<Object>

The NullType is a platform independent definition for null.

Field Summary

Fields inherited from interface javax.rad.type.IType

UNKNOWN_TYPE

Constructor Summary

NullType()
Constructs a new NullType.

Method Summary

int	compareTo(Object pObject1, Object pObject2) Compares two objects.
Class<Object>	getTypeClass() Returns the class used by this type.
Object	valueOf(Object pObject) Converts the object to an Object which is an instance of type class.

Methods inherited from class javax.rad.type.AbstractType

equals, getTypeFromClass, getTypeFromObject, hashCode, registerType, toString, validatedValueOf

Methods inherited from class java.lang.Object

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

Constructor Detail

NullType

public NullType()

Constructs a new NullType.

Method Detail

getTypeClass

public Class<Object> getTypeClass()

Returns the class used by this type.

Returns:

the class used by this type.

compareTo

public int compareTo(Object pObject1,
                     Object pObject2)

Compares two objects. If the first object is smaller than the second object a value < 0 is returned. If the two objects are equal than 0 is returned. If the first object is greater than the second object a value > 0 is returned.

Parameters:

pObject1 - the first object.

pObject2 - the second object.

Returns:

< 0 if pObject1 is smaller, 0 if equal and > 0 if it is greater then pObject2

valueOf

public Object valueOf(Object pObject)

Converts the object to an Object which is an instance of type class.

Specified by:

valueOf in interface IType<Object>

Overrides:

valueOf in class AbstractType<Object>

Parameters:

pObject - the Object to convert

Returns:

the Object which is an instance of type class.