| /* |
| * 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 org.apache.qpid.protonj2.engine; |
| |
| import org.apache.qpid.protonj2.types.DeliveryTag; |
| |
| /** |
| * Transfer tag generators can be assigned to {@link Sender} links in order to |
| * allow the link to automatically assign a transfer tag to each outbound delivery. |
| * Depending on the Sender different tag generators can operate in a fashion that is |
| * most efficient for that link such as caching tags for links that will produce a |
| * large number of messages to avoid GC overhead, while for other links simpler |
| * generator types could be used. |
| */ |
| public interface DeliveryTagGenerator { |
| |
| /** |
| * Creates and returns the next {@link DeliveryTag} tag that should be used when |
| * populating an {@link OutgoingDelivery}. |
| * |
| * @return the next {@link DeliveryTag} to use for an {@link OutgoingDelivery}. |
| */ |
| DeliveryTag nextTag(); |
| |
| } |