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.calcite.avatica.remote;
  
  import org.apache.calcite.avatica.Meta;
  import org.apache.calcite.avatica.NoSuchStatementException;
  import org.apache.calcite.avatica.proto.Requests;
  
  import java.util.List;
  
  /**
   * An extension of {@link Meta} which allows for native processing of calls with the Protobuf
   * API objects instead of the POJOS (to avoid object translation). In the write-path, performing
   * this conversion tends to represent a signficant portion of execution time. The introduction
   * of this interface is to serve the purose of gradual migration to Meta implementations that
   * can naturally function over Protobuf objects instead of the POJOs.
   */
  public interface ProtobufMeta extends Meta {
  
    /**
     * Executes a batch of commands on a prepared statement.
     *
     * @param h Statement handle
     * @param parameterValues A collection of list of typed values, one list per batch
     * @return An array of update counts containing one element for each command in the batch.
     */
    ExecuteBatchResult executeBatchProtobuf(StatementHandle h, List<Requests.UpdateBatch>
        parameterValues) throws NoSuchStatementException;
  }
  
  // End ProtobufMeta.java
  