| /* |
| * 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.repository; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.ace.range.SortedRangeSet; |
| |
| /** |
| * The interface for replication of the data in a repository. |
| */ |
| public interface RepositoryReplication |
| { |
| /** |
| * Determines the versions inside the repository. |
| * |
| * @returns A <code>SortedRangeSet</code> representing all the versions currently inside the repository. |
| * @throws java.io.IOException If there is an error determining the current versions. |
| */ |
| public SortedRangeSet getRange() throws IOException; |
| |
| /** |
| * Gets the specified version. |
| * |
| * @return A stream containing the specified version's data or <code>null</code> if the version does not exist. |
| * @throws java.io.IOException If there is an error reading the version. |
| * @throws IllegalArgumentException If the specified version is not greater than 0. |
| */ |
| public InputStream get(long version) throws IOException, IllegalArgumentException; |
| |
| /** |
| * Store the stream data as the specified version. |
| * |
| * @return returns True if all went fine, false if the version already existed. |
| * @throws java.io.IOException If the stream data could not be stored successfully due to I/O problems. |
| * @throws IllegalArgumentException If the version number is not greater than 0. |
| */ |
| public boolean put(InputStream data, long version) throws IOException, IllegalArgumentException; |
| } |