Examples of net.jini.discovery.LookupDiscoveryManager.addDiscoveryListener()

net.jini.discovery.LookupDiscoveryManager.addDiscoveryListener()

Adds an instance of DiscoveryListener to the set of objects listening for discovery events. Once the listener is registered, it will be notified of all lookup services discovered to date, and will then be notified as new lookup services are discovered or existing lookup services are discarded.

If null is input, this method takes no action. If the listener input to this method duplicates (using the equals method) another element in the current set of listeners, no action is taken. @param listener an instance of DiscoveryListenercorresponding to the listener to add to the set of listeners. @throws java.lang.NullPointerException this exception occurs whennull is input to the listener parameter. @see net.jini.discovery.DiscoveryListener @see net.jini.discovery.DiscoveryManagement#addDiscoveryListener @see #removeDiscoveryListener

         *       in the run method
         */
        LookupDiscoveryManager discMgr 
              = (LookupDiscoveryManager)(joinMgrSrvcID.getDiscoveryManager());
        discMgr.setGroups(toGroupsArray(initLookupsToStart));
        discMgr.addDiscoveryListener(mainListener);
    }//end setup


    /** Executes the current test by doing the following:
     * <p><ul>
     *    <li> verifies that the lookup service(s) started initially were

            if(ldm==null) {
                ldm = discoControl.createLookupDiscoveryManager(groups, locators, listener, config);
            } else {
                ((SharedDiscoveryManager)ldm).incrementRefCounter();
                if(listener!=null)
                    ldm.addDiscoveryListener(listener);
            }
        }
        return(ldm);
    }

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