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Stanimir,
On 2/10/2009 11:25 AM, Stanimir Komitov wrote:
> How to exclude some classes to being serialized in sharing session with
> clustered tomcats?
Do you mean avoiding serializing some /objects/ in shared sessions?
I can see your problem. You want:
1. An object in the session
2a. The object's class is not serializable
or
2b. The object is very large
3. The session should properly migrate between cluster nodes
The only way I can think of doing this is writing an object wrapper.
Something like this:
public class TransientObjectWrapper
implements Serializable
{
private static final Object UNINITIALIZED = new Object();
private transient final Object _wrapped;
public TransientObjectWrapper(Object wrapped)
{
_wrapped = wrapped;
}
public Object get()
{
return initialized() ? _wrapped : null;
}
public boolean initialized()
{
return _wrapped != UNINITIALIZED;
}
// Capture de-serialization events and mark the wrapped
// object as uninitialized
private void readObject(ObjectInputStream in)
{
in.defaultReadObject();
_wrapped = UNINITIALIZED;
}
}
> And why the application scope beans are serialized too?
Objects placed in the application scope do not need to be serializable.
- -chris
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