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 accord.api;
  
  import accord.local.CommandStore;
  import accord.local.SafeCommandStore;
  import accord.primitives.PartialTxn;
  import accord.primitives.Seekable;
  import accord.primitives.Timestamp;
  import accord.primitives.TxnId;
  import accord.utils.async.AsyncChain;
  
  /**
   * A collection of data to write to one or more stores
   *
   * TODO (desired, efficiency): support splitting so as to minimise duplication of data across shards
   */
  public interface Write
  {
      AsyncChain<Void> apply(SafeCommandStore safeStore, Seekable key, TxnId txnId, Timestamp executeAt, PartialTxn txn);
  
      /**
       * Apply the write directly to the underlying data store.
       * This method will only be invoked if {@link ProtocolModifiers.Toggles#fastWritesMayBypassSafeStore()}
       */
      default AsyncChain<Void> applyDirect(CommandStore unsafeStore, Seekable key, TxnId txnId, Timestamp executeAt, PartialTxn txn) { throw new UnsupportedOperationException(); }
  
      interface InMemoryWrite extends Write
      {
          default AsyncChain<Void> applySync(CommandStore unsafeStore, Seekable key, TxnId txnId, Timestamp executeAt, PartialTxn txn) { throw new UnsupportedOperationException(); }
      }
  }
  