Re: Outrigger. Jini2.1

With GigaSpaces implementation you can do this.
No synchronization or locking is required.
Shay


-----Original Message-----
From: Santoshi, Vishal [mailto:[email protected]]
Sent: Friday, February 10, 2006 4:16 PM
To: Shay Hassidim; [email protected]
Subject: RE: Outrigger. Jini2.1

 Thank you Shay.
 Does that imply that a single Space instance can be passed over to a
thread pool executor and no synchronization(or locking is required).

Thus is this example code good.

JavaSpace space = SpaceLocator.getSpace();//some utility method
ThreadPool a = new ThreadPool(space);
a.startThreads();

Each thread or Callable or Runnable has a run method ;

        public class Xthread {
          JavaSpace space = null;
          public Xthread (JavaSpace space){
              this.space = space;
          }
          public void run(){
             While(true){
               space.take(Entry, Transactio); /// etc
            }

         }
     }

-----Original Message-----
From: Shay Hassidim [mailto:[email protected]]
Sent: Friday, February 10, 2006 2:39 AM
To: Santoshi, Vishal
Subject: RE: Outrigger. Jini2.1

JavaSpace is transaction safe.
mohalo transaction can be used with different spaces.

Shay


-----Original Message-----
From: Santoshi, Vishal [mailto:[email protected]]
Sent: Friday, February 10, 2006 6:35 AM
To: [email protected]
Subject: Outrigger. Jini2.1

I have used jini-start-examples to kick start learning about jini and
javasapces .
I have a few questions.

1. How do I identify a JavaSpace by a name ? I have tried modifying the
transient-outrigger.config in
   example/outrigger/jrmp/config (I started off by using the
jrmp-transient option i.e urun jrmp-transient)
          import net.jini.jrmp.JrmpExporter;
          import net.jini.core.discovery.LookupLocator;
          import net.jini.lookup.entry.Name;
          import net.jini.core.entry.Entry;
          com.sun.jini.outrigger {
                serverExporter = new JrmpExporter();
                initialLookupGroups = new String[]
{"JRMP_Group0","JRMP_Group1"};
                initialLookupAttributes = new Entry[]{new
Name("gallup")};
          }//end com.sun.jini.outrigger

   This does not seem to resolve the space by name if I use this code.
           entry=new Entry[]{new Name("gallup")};
           _template=new ServiceTemplate(null,types,entry); // and so
on.



2.Is JavaSpace and a Transaction  threadsafe ? Can we use a space
concurrently while doing a put?
   Or to be precise
          space.write(entry,transaction,Lease.FOREVER);
   is this call a thread safe call.
   And what about the corresponding take call.


3.Can a mohalo transaction transcend java spaces? Can a single
transaction be use with n different spaces?


Thanks a lot , in anticipation.


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