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- /*
- * Copyright 2000-2014 Vaadin Ltd.
- *
- * 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 com.vaadin.shared.ui.ui;
-
- /**
- * Transport modes for Push
- *
- * @since 7.1
- * @author Vaadin Ltd
- */
- public enum Transport {
- /**
- * Websockets
- */
- WEBSOCKET("websocket"),
- /**
- * Websockets for server to client, XHR for client to server
- *
- * @since 7.6
- */
- WEBSOCKET_XHR("websocket-xhr"),
- /**
- * HTTP streaming
- *
- * @deprecated Use the more reliable {@link Transport#LONG_POLLING} instead.
- */
- @Deprecated
- STREAMING("streaming"),
- /**
- * HTTP long polling
- */
- LONG_POLLING("long-polling");
-
- private String identifier;
-
- private Transport(String identifier) {
- this.identifier = identifier;
- }
-
- public String getIdentifier() {
- return identifier;
- }
-
- /**
- * Returns a Transport by its identifier. Returns null if no value is found
- * for the given identifier.
- *
- * @since 7.3.10
- */
- public static Transport getByIdentifier(String identifier) {
- for (Transport t : values()) {
- if (t.getIdentifier().equals(identifier)) {
- return t;
- }
- }
- return null;
- }
- }
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