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.statelib.impl.mvcc;
  
  import java.util.function.Supplier;
  import lombok.AccessLevel;
  import lombok.NoArgsConstructor;
  import org.apache.bookkeeper.statelib.api.mvcc.MVCCAsyncStore;
  import org.apache.distributedlog.api.namespace.Namespace;
  
  /**
   * A central place for creating and managing mvcc stores.
   */
  @NoArgsConstructor(access = AccessLevel.PRIVATE)
  public final class MVCCStores {
  
      /**
       * Provide a supplier to supply mvcc stores with a given namespace supplier.
       *
       * @param nsSupplier namespace supplier
       * @return a supplier that supplies mvcc stores.
       */
      public static Supplier<MVCCAsyncStore<byte[], byte[]>> bytesStoreSupplier(Supplier<Namespace> nsSupplier) {
          return () -> new MVCCAsyncBytesStoreImpl(
              () -> new MVCCStoreImpl<>(),
              nsSupplier
          );
      }
  
  }
  