Re: LookupDiscovery MulticastTimeToLive

> I really should find out for myself

Indeed, it's in the LookupDiscovery javadoc.

> but how do I set the MulticastTimeToLive for LookupDiscovery? I suppose
> I'm supposed to write something like discoveryConstraints = ???

import net.jini.constraint.BasicMethodConstraints;
import net.jini.constraint.BasicMethodConstraints.MethodDesc;
import net.jini.core.constraint.InvocationConstraints;
import net.jini.core.constraint.InvocationConstraint;
import com.sun.discovery.MulticastTimeToLive;

net.jini.discovery.LookupDiscovery {

discoveryConstraints =
     new BasicMethodConstraints(
        new MethodDesc[]{
            new MethodDesc(
                "multicastRequest",
                new InvocationConstraints(
                    new InvocationConstraint[]{
                        new MulticastTimeToLive(<n>)},
                    null)),
            new MethodDesc(
                "multicastAnnouncement",
                new InvocationConstraints(
                    new InvocationConstraint[]{
                        new MulticastTimeToLive(<n>)},
                    null))});

}


> Also, is the default value 225 or did I dream that?

It's 15 (per recommendation in the D&J spec).

> Could someone point
> me in the right direction for understanding what this means more
> practically (if remotely correct)

It's essentially how many router hops you want it to traverse.

- Bob

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