| /** |
| * 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.activemq.command; |
| |
| import org.apache.activemq.state.CommandVisitor; |
| |
| /** |
| * The Command Pattern so that we can send and receive commands on the different |
| * transports |
| * |
| * |
| */ |
| public interface Command extends DataStructure { |
| |
| void setCommandId(int value); |
| |
| /** |
| * @return the unique ID of this request used to map responses to requests |
| */ |
| int getCommandId(); |
| |
| void setResponseRequired(boolean responseRequired); |
| |
| boolean isResponseRequired(); |
| |
| boolean isResponse(); |
| |
| boolean isMessageDispatch(); |
| |
| boolean isBrokerInfo(); |
| |
| boolean isWireFormatInfo(); |
| |
| boolean isMessage(); |
| |
| boolean isMessageAck(); |
| |
| boolean isMessageDispatchNotification(); |
| |
| boolean isShutdownInfo(); |
| |
| boolean isConnectionControl(); |
| |
| Response visit(CommandVisitor visitor) throws Exception; |
| |
| /** |
| * The endpoint within the transport where this message came from which |
| * could be null if the transport only supports a single endpoint. |
| */ |
| Endpoint getFrom(); |
| |
| void setFrom(Endpoint from); |
| |
| /** |
| * The endpoint within the transport where this message is going to - null |
| * means all endpoints. |
| */ |
| Endpoint getTo(); |
| |
| void setTo(Endpoint to); |
| } |