Java tutorial
/* * Copyright 2002-2019 the original author or authors. * * 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 * * https://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.springframework.amqp.core; import java.util.Map; /** * Interface for all exchanges. * * @author Mark Fisher * @author Gary Russell * @author Artem Bilan */ public interface Exchange extends Declarable { /** * The name of the exchange. * * @return the name of the exchange. */ String getName(); /** * The type of the exchange. See {@link ExchangeTypes} for some well-known examples. * * @return the type of the exchange. */ String getType(); /** * A durable exchange will survive a server restart. * * @return true if durable. */ boolean isDurable(); /** * True if the server should delete the exchange when it is no longer in use (if all bindings are deleted). * * @return true if auto-delete. */ boolean isAutoDelete(); /** * A map of arguments used to declare the exchange. These are stored by the broker, but do not necessarily have any * meaning to the broker (depending on the exchange type). * * @return the arguments. */ Map<String, Object> getArguments(); /** * Is a delayed message exchange; currently requires a broker plugin. * @return true if delayed. * @since 1.6 */ boolean isDelayed(); /** * Is an exchange internal; i.e. can't be directly published to by a client, * used for exchange-to-exchange binding only. * @return true if internal. * @since 1.6 */ boolean isInternal(); }