| /* |
| * 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.ace.log; |
| |
| import java.io.IOException; |
| |
| import aQute.bnd.annotation.ProviderType; |
| |
| /** |
| * Log synchronizing interface. It is intended to give direct access to the synchronizing |
| * possibilities of the server side log. |
| */ |
| @ProviderType |
| public interface LogSync |
| { |
| |
| /** |
| * Pushes local changes and updates them in the remote repository. |
| * @throws java.io.IOException when there is an error communicating with the server. |
| * @return <code>true</code> when changes have been made the local log store, |
| * <code>false</code> otherwise. |
| */ |
| public boolean push() throws IOException; |
| |
| /** |
| * Pulls remote changes and updates them in the local repository. |
| * @throws java.io.IOException when there is an error communicating with the server. |
| * @return <code>true</code> when changes have been made the local log store, |
| * <code>false</code> otherwise. |
| */ |
| public boolean pull() throws IOException; |
| |
| /** |
| * Both pushes and pulls changes, and updates them in the both repositories. |
| * @throws java.io.IOException when there is an error communicating with the server. |
| * @return <code>true</code> when changes have been made the local log store, |
| * <code>false</code> otherwise. |
| */ |
| public boolean pushpull() throws IOException; |
| |
| /** Pushes lowest IDs to remote repository. */ |
| public boolean pushIDs() throws IOException; |
| /** Pulls lowest IDs from remote repository. */ |
| public boolean pullIDs() throws IOException; |
| /** Pushes and pulls lowest IDs to/from remote repository. */ |
| public boolean pushpullIDs() throws IOException; |
| |
| /** |
| * Returns the name of the log 'channel' this log sync task is assigned to. |
| * |
| * @return The name of the log 'channel' this log sync task is assigned to. |
| */ |
| public String getName(); |
| } |