Re: How to not persist an object

The 'transient' keyword will have no effect.  OpenAMF does not use 
Java serialization.   

OpenAMF uses JavaBeans introspection to discover JavaBean properties.

The only way to modify the behavior is:

  modify the OpenAMF source code

  OR

  implement a FooBeanInfo class for each Java class 
  where you need to force certain properties to be ignored

Cheers,

-Sean


>-- Original Message --
>From: Leif Wells <[email protected]>
>To: [email protected]
>Subject: Re: [Openamf-user] How to not persist an object
>Reply-To: [email protected]
>Date: Thu, 28 Apr 2005 09:38:32 -0400
>
>
>(I've inherited this issue from Dan, but I'm still a beginner here, so
be
>
>gentle)
>
>Todd: I'll look into the "transient" keyword since I've never seen that

>before.
>
>Sean: I have a couple of questions:
>
>In your example, what exactly are you sending to Open-AMF?
>Are we sending Foo? Or FooInfoBean?
>
>And how do Foo and FooInfoBean relate to each other?
>
>Thanks,
>
>Leif
>
>On 4/28/05, Sean C. Sullivan <[email protected]> wrote:
>> 
>> 
>> OpenAMF uses JavaBeans introspection to discover the "getter" methods.
>> 
>> If you implement a BeanInfo class, you can explicitly return an array
of
>> PropertyDescriptor objects.
>> OpenAMF will process only properties that you include in the
>> PropertyDescriptor array.
>> 
>> Here's an example:
>> 
>> File: Foo.java
>> 
>> public class Foo
>> {
>> private String a;
>> private String b;
>> 
>> public Foo()
>> {
>> 
>> }
>> 
>> public String getA()
>> {
>> return a;
>> }
>> 
>> public void setA(String value)
>> {
>> this.a = value;
>> }
>> 
>> public String getB()
>> {
>> return b;
>> }
>> 
>> public void setB(String value)
>> {
>> this.b = value;
>> }
>> 
>> }
>> 
>> File: FooBeanInfo.java
>> 
>> import java.beans.*;
>> 
>> public class FooBeanInfo extends java.beans.SimpleBeanInfo
>> {
>> public PropertyDescriptor[] getPropertyDescriptors()
>> {
>> PropertyDescriptor[] props = new PropertyDescriptor[1];
>> try
>> {
>> // Create a property descriptor for "a" only
>> PropertyDescriptor pd = new PropertyDescriptor("a", Foo.class);
>> props[0] = pd;
>> }
>> catch (IntrospectionException ex)
>> {
>> ex.printStackTrace();
>> }
>> 
>> return props;
>> }
>> 
>> }
>> 
>> Dan Glauser wrote:
>> 
>> > Hello all,
>> >
>> > I have a group of nested objects that I am trying to send over the
>> > wire with OpenAMF. I would like the AMFSerializer to not serialize
>> > one of the object's properties. I need to have a getter for this
>> > property however because this property is managed via Hibernate.
>> >
>> > Any advice would be appreciated.
>> >
>> > Thanks!
>> >
>> > --
>> > Dan
>> > [email protected]
>> 
>> -------------------------------------------------------
>> SF.Net <http://SF.Net> email is sponsored by: Tell us your software 
>> development plans!
>> Take this survey and enter to win a one-year sub to SourceForge.net<http://SourceForge.net>
>> Plus IDC's 2005 look-ahead and a copy of this survey
>> Click here to start! http://www.idcswdc.com/cgi-bin/survey?id=105hix
>> _______________________________________________
>> Openamf-user mailing list
>> [email protected]
>> https://lists.sourceforge.net/lists/listinfo/openamf-user
>>




-------------------------------------------------------
SF.Net email is sponsored by: Tell us your software development plans!
Take this survey and enter to win a one-year sub to SourceForge.net
Plus IDC's 2005 look-ahead and a copy of this survey
Click here to start!  http://www.idcswdc.com/cgi-bin/survey?id5hix