| /* |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 proton; |
| |
| import java.util.Iterator; |
| |
| |
| /** |
| * Link |
| * |
| * @opt operations |
| * @opt types |
| * |
| * @assoc 1 - n Delivery |
| * |
| * @todo make links able to exist independently from |
| * sessions/connections and allow to migrate |
| * |
| */ |
| |
| public interface Link extends Endpoint |
| { |
| |
| /** |
| * transition local state to ACTIVE |
| */ |
| public void attach(); |
| |
| /** |
| * transition local state to CLOSED |
| */ |
| public void detach(); |
| |
| /** |
| * @param tag a tag for the delivery |
| * |
| * @return a Delivery object |
| */ |
| public Delivery delivery(byte[] tag); |
| |
| /** |
| * @return the unsettled deliveries for this link |
| */ |
| public Iterator<Delivery> unsettled(); |
| |
| /** |
| * Advances the current delivery to the next delivery on the link. |
| * |
| * @return the next delivery or null if there is none |
| */ |
| public Delivery next(); |
| |
| } |