org.exolab.castor.mapping.handlers
Class TransientFieldHandler

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

All Implemented Interfaces:

ConfigurableFieldHandler, FieldHandler

public class TransientFieldHandler
extends AbstractFieldHandler

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

Version:

$Revision: 6231 $ $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

Object	getValue(Object target) Returns the value of the field from the object.
Object	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 Object getValue(Object target)

Description copied from class: AbstractFieldHandler

Returns the value of the field from the object.

Specified by:

getValue in interface FieldHandler

Specified by:

getValue in class AbstractFieldHandler

Parameters:

target - The object

Returns:

The value of the field

See Also:

FieldHandler.getValue(java.lang.Object)

newInstance

public Object newInstance(Object target)

Description copied from class: AbstractFieldHandler

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

Specified by:

newInstance in interface FieldHandler

Specified by:

newInstance in class AbstractFieldHandler

Parameters:

target - The object for which the field is created

Returns:

A new instance of the field's value

See Also:

FieldHandler.newInstance(java.lang.Object)

newInstance

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

Description copied from class: AbstractFieldHandler

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

Specified by:

newInstance in class AbstractFieldHandler

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

See Also:

ExtendedFieldHandler.newInstance(java.lang.Object, java.lang.Object[])

setValue

public void setValue(Object target,
                     Object value)

Description copied from class: AbstractFieldHandler

Sets the value of the field on the object.

Specified by:

setValue in interface FieldHandler

Specified by:

setValue in class AbstractFieldHandler

Parameters:

target - The object.

value - The new value.

See Also:

FieldHandler.setValue(java.lang.Object, java.lang.Object)

resetValue

public void resetValue(Object target)

Description copied from class: AbstractFieldHandler

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.

Specified by:

resetValue in interface FieldHandler

Specified by:

resetValue in class AbstractFieldHandler

Parameters:

target - The object

See Also:

FieldHandler.resetValue(java.lang.Object)