package com.vaadin.tests.push; import com.vaadin.annotations.Push; import com.vaadin.server.VaadinRequest; import com.vaadin.shared.ui.ui.Transport; import com.vaadin.shared.ui.ui.UIState.PushConfigurationState; @Push(transport = Transport.LONG_POLLING) public class BasicPushLongPolling extends BasicPush { @Override public void init(VaadinRequest request) { super.init(request); // Don't use fallback so we can easier detect if long polling fails getPushConfiguration().setParameter( PushConfigurationState.FALLBACK_TRANSPORT_PARAM, "none"); } }