org.apache.ojb.broker.metadata.fieldaccess
Class PersistentFieldDirectAccessImpl
java.lang.Object
org.apache.ojb.broker.metadata.fieldaccess.AbstractPersistentField
org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldDirectAccessImpl
- All Implemented Interfaces:
- PersistentField, java.io.Serializable
- Direct Known Subclasses:
- PersistentFieldPrivilegedImpl
- public class PersistentFieldDirectAccessImpl
- extends AbstractPersistentField
A PersistentField
implementation
is a high-speed version of the access strategies.
It does not cooperate with an AccessController,
but accesses the fields directly. This implementation persistent
attributes don't need getters and setters
and don't have to be declared public or protected
- Version:
- $Id: PersistentFieldDirectAccessImpl.java,v 1.13 2004/04/09 13:22:29 tomdz Exp $
- Author:
- Thomas Mahler, Armin Waibel
- See Also:
- Serialized Form
Method Summary |
java.lang.Object |
doGet(java.lang.Object obj)
Returns the value of the field represented by this PersistentField, on the specified object. |
void |
doSet(java.lang.Object obj,
java.lang.Object value)
Sets the field represented by this PersistentField object on the specified object argument to the specified new value. |
boolean |
makeAccessible()
This implementation returns always 'false'. |
boolean |
usesAccessorsAndMutators()
Always returns 'false'. |
Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
PersistentFieldDirectAccessImpl
public PersistentFieldDirectAccessImpl()
PersistentFieldDirectAccessImpl
public PersistentFieldDirectAccessImpl(java.lang.Class type,
java.lang.String fieldname)
doSet
public void doSet(java.lang.Object obj,
java.lang.Object value)
throws MetadataException
- Sets the field represented by this PersistentField object on the specified object argument to the specified new value.
The new value is automatically unwrapped if the underlying field has a primitive type.
This implementation invokes set() on its underlying Field object if the argument is not null.
OBS IllegalArgumentExceptions are wrapped as PersistenceBrokerExceptions.
- Specified by:
doSet
in class AbstractPersistentField
- Throws:
MetadataException
- if there is an error setting this field value on obj- See Also:
Field
doGet
public java.lang.Object doGet(java.lang.Object obj)
throws MetadataException
- Returns the value of the field represented by this PersistentField, on the specified object.
This implementation invokes get() on its underlying Field object.
- Specified by:
doGet
in class AbstractPersistentField
- Parameters:
obj
- - the object instance which we are trying to get the field value from
- Throws:
MetadataException
- if there is an error getting this field value from obj- See Also:
Field
makeAccessible
public boolean makeAccessible()
- This implementation returns always 'false'.
- Specified by:
makeAccessible
in class AbstractPersistentField
- See Also:
AbstractPersistentField.makeAccessible()
usesAccessorsAndMutators
public boolean usesAccessorsAndMutators()
- Always returns 'false'.
- See Also:
PersistentField.usesAccessorsAndMutators()
(C) 2002 - 2004 Apache Software Foundation
All rights reserved. Published under the Apache License 2.0.
http://db.apache.org/ojb
Version: 1.0.3, 2005-04-2