| /** |
| * 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.bookkeeper.meta; |
| |
| import java.io.Closeable; |
| |
| import org.apache.bookkeeper.client.BKException; |
| import org.apache.bookkeeper.proto.BookkeeperInternalCallbacks.GenericCallback; |
| |
| /** |
| * The interface for global unique ledger ID generation |
| */ |
| public interface LedgerIdGenerator extends Closeable { |
| |
| /** |
| * generate a global unique ledger id |
| * |
| * @param cb |
| * Callback when a new ledger id is generated, return code:<ul> |
| * <li>{@link BKException.Code.OK} if success</li> |
| * <li>{@link BKException.Code.ZKException} when can't generate new ledger id</li> |
| * </ul> |
| */ |
| public void generateLedgerId(GenericCallback<Long> cb); |
| |
| } |