/** @since 3.1 */
@Override
protected void attachToChannel(DataChannel channel) {
super.attachToChannel(channel);
if (mergeHandler != null) {
mergeHandler.setActive(false);
mergeHandler = null;
}
EventManager eventManager = channel.getEventManager();
if (eventManager != null) {
mergeHandler = new DataContextMergeHandler(this);
// listen to our channel events...
// note that we must reset listener on channel switch, as there is
// no
// guarantee that a new channel uses the same EventManager.
EventUtil.listenForChannelEvents(channel, mergeHandler);
}
if (!usingSharedSnaphsotCache && getObjectStore() != null) {
DataRowStore cache = getObjectStore().getDataRowCache();
if (cache != null) {
cache.setEventManager(eventManager);
}
}
}
// this completely meaningless override is needed to expose the method as
// package-private ... is there a better way?
@Override
protected void fireDataChannelChanged(Object postedBy, GraphDiff changes) {
super.fireDataChannelChanged(postedBy, changes);
}
@Override
protected void attachToRuntime(Injector injector) {
super.attachToRuntime(injector);
this.transactionFactory = injector.getInstance(TransactionFactory.class);
}