| /* |
| * 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; |
| |
| /** |
| * Enumeration of Engine states as visible from the Engine API |
| */ |
| public enum EngineState { |
| |
| /** |
| * The engine has not been started yet and is safe to configure. |
| */ |
| IDLE, |
| |
| /** |
| * Indicates the engine is in the starting phase and configuration be safe to use now. |
| */ |
| STARTING, |
| |
| /** |
| * The engine has been started and no changes to configuration are permissible. |
| */ |
| STARTED, |
| |
| /** |
| * The engine has encountered an error and is no longer usable. |
| */ |
| FAILED, |
| |
| /** |
| * Engine is shutting down and all pending work should be completed. |
| */ |
| SHUTTING_DOWN, |
| |
| /** |
| * The engine has been shutdown and can no longer be used. |
| */ |
| SHUTDOWN |
| |
| } |