org.exolab.castor.mapping.handlers
Class TransientFieldHandler<T>

java.lang.Object
  org.exolab.castor.mapping.loader.FieldHandlerFriend<T>
      org.exolab.castor.mapping.ExtendedFieldHandler<T>
          org.exolab.castor.mapping.AbstractFieldHandler<T>
              org.exolab.castor.mapping.handlers.TransientFieldHandler<T>

All Implemented Interfaces:

ConfigurableFieldHandler<T>, FieldHandler<T>

public class TransientFieldHandler<T>
extends AbstractFieldHandler<T>

A dummy FieldHandler for "transient" fields. This allows us to create a FieldDescriptor, but not use a real FieldHandler.

Version:

$Revision: 9062 $ $Date: 2005-01-17 14:35:07 -0700 (Mon, 17 Jan 2005) $

Author:

kvisco

Field Summary

Fields inherited from class org.exolab.castor.mapping.AbstractFieldHandler

_properties

Constructor Summary

TransientFieldHandler()

Method Summary

T	getValue(Object target) Returns the value of the field from the object.
T	newInstance(Object target) Creates a new instance of the object described by this field.
Object	newInstance(Object target, Object[] args) Creates a new instance of the object described by this field.
void	resetValue(Object target) Sets the value of the field to a default value.
void	setValue(Object target, Object value) Sets the value of the field on the object.

Methods inherited from class org.exolab.castor.mapping.AbstractFieldHandler

getFieldDescriptor, hasValue, setConfiguration, setFieldDescriptor

Methods inherited from class org.exolab.castor.mapping.ExtendedFieldHandler

checkValidity

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.exolab.castor.mapping.FieldHandler

checkValidity

Constructor Detail

TransientFieldHandler

public TransientFieldHandler()

Method Detail

getValue

public T getValue(Object target)

Description copied from interface: FieldHandler

Returns the value of the field from the object.

Parameters:

target - The object

Returns:

The value of the field

newInstance

public T newInstance(Object target)

Description copied from interface: FieldHandler

Creates a new instance of the object described by this field.

Parameters:

target - The object for which the field is created

Returns:

A new instance of the field's value

newInstance

public Object newInstance(Object target,
                          Object[] args)

Description copied from class: ExtendedFieldHandler

Creates a new instance of the object described by this field.

Specified by:

newInstance in class ExtendedFieldHandler<T>

Parameters:

target - The object for which the field is created

args - the set of constructor arguments

Returns:

A new instance of the field's value

setValue

public void setValue(Object target,
                     Object value)

Description copied from interface: FieldHandler

Sets the value of the field on the object.

Parameters:

target - The object.

value - The new value.

resetValue

public void resetValue(Object target)

Description copied from interface: FieldHandler

Sets the value of the field to a default value.

Reference fields are set to null, primitive fields are set to their default value, collection fields are emptied of all elements.

Parameters:

target - The object.