*/
public PresentationModel(
ValueModel beanChannel,
ValueModel triggerChannel) {
this.beanChannel = beanChannel;
this.beanAdapter = new BeanAdapter(beanChannel, true);
this.triggerChannel = triggerChannel;
this.wrappedBuffers = new HashMap<String, WrappedBuffer>();
this.bufferingUpdateHandler = new BufferingStateHandler();
this.changed = false;
this.changedUpdateHandler = new UpdateHandler();