| /* |
| * 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.catalina; |
| |
| import java.util.Set; |
| |
| /** |
| * Interface implemented by session managers that do not keep a complete copy |
| * of all sessions in memory but do know where every session is. The |
| * BackupManager is an example of such a Manager as are implementations of the |
| * StoreManager interface. |
| * <p> |
| * With the BackupManager, sessions can be primary (master copy on this node), |
| * backup (backup copy on this node) or proxy (only the session ID on this |
| * node). The identity of the primary and backup nodes are known for all |
| * sessions, including proxy sessions. |
| * <p> |
| * With StoreManager implementations, sessions can be primary (session is in |
| * memory) or proxy (session is in the Store). |
| */ |
| public interface DistributedManager { |
| |
| /** |
| * Returns the total session count for primary, backup and proxy. |
| * |
| * @return The total session count across the cluster. |
| */ |
| public int getActiveSessionsFull(); |
| |
| /** |
| * Returns the list of all sessions IDS (primary, backup and proxy). |
| * |
| * @return The complete set of sessions IDs across the cluster. |
| */ |
| public Set<String> getSessionIdsFull(); |
| } |