Changes

You can register your engine in an ""weave:service:ready" observer using the Weave.Engines.register () function. Note that the parameter you passed should be the name of your engine, such as Weave.Engines.register(FooEngine) and not new FooEngine(). Also note that "weave:service:ready" is issued after the "weave:engine:start-tracking" observer notification. If your tracker observes "weave:engine:start-tracking", it's best to have the Sync service register your engine. Stick your engine class on to the Weave object: <pre>Weave.FooEngine = FooEngine;</pre> and add "Foo" to the services.sync.registerEngines preference (it's a comma separated list of engine names).