/*
* Copyright (C) 2011 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.errai.bus.client.api.base;
/**
* An enumeration of the possible mechanisms by which a bus can communicate with
* another remote bus.
*/
public enum Capabilities {
/**
* This message bus can communicate updates using HTTP long polling, commonly known as COMET.
*/
LongPolling,
/**
* Indicates that this message bus can communicate using HTTP short polling.
* <p>
* Implementation note: This flag is WACK, man.
*/
ShortPolling,
/**
* This message bus can communicate updates using the Errai protocol over a WebSocket channel.
*/
WebSockets,
/**
* This message bus can communicate using Server-Sent Events
*/
SSE,
}