content: /*
   * 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.api;
  
  import io.netty.buffer.ByteBuf;
  import java.util.concurrent.CompletableFuture;
  import org.apache.bookkeeper.api.kv.PTable;
  import org.apache.bookkeeper.api.kv.Table;
  import org.apache.bookkeeper.common.annotation.InterfaceAudience.Public;
  import org.apache.bookkeeper.common.annotation.InterfaceStability.Evolving;
  import org.apache.bookkeeper.common.util.AutoAsyncCloseable;
  
  /**
   * The stream storage client.
   */
  @Public
  @Evolving
  public interface StorageClient extends AutoAsyncCloseable {
  
      /**
       * Open a {@link PTable} <tt>table</tt> under <tt>namespace</tt>.
       *
       * @param namespace namespace
       * @param table table name
       * @return a future represents the open result
       */
      CompletableFuture<PTable<ByteBuf, ByteBuf>> openPTable(String namespace, String table);
  
      /**
       * Open a {@link PTable} <tt>table</tt> under the default namespace of this client.
       * The default namespace is configured when creating {@link StorageClient}.
       *
       * @param table table name
       * @return a future represents the open result
       */
      CompletableFuture<PTable<ByteBuf, ByteBuf>> openPTable(String table);
  
      /**
       * Open a {@link Table} <tt>table</tt> under <tt>namespace</tt>.
       *
       * @param namespace namespace
       * @param table table name
       * @return a future represents the open result
       */
      CompletableFuture<Table<ByteBuf, ByteBuf>> openTable(String namespace, String table);
  
      /**
       * Open a {@link Table} <tt>table</tt> under <tt>namespace</tt>.
       * The default namespace is configured when creating {@link StorageClient}.
       *
       * @param table table name
       * @return a future represents the open result
       */
      CompletableFuture<Table<ByteBuf, ByteBuf>> openTable(String table);
  
  }
  