/**
 * 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.
 */
using System;
using System.Collections.Generic;
using Avro.IO;

namespace Avro.Generic
{
    public interface DatumReader<T>
    {
        Schema ReaderSchema { get; }
        Schema WriterSchema { get; }

        /// <summary>
        /// Read a datum.  Traverse the schema, depth-first, reading all leaf values
        /// in the schema into a datum that is returned.  If the provided datum is
        /// non-null it may be reused and returned.
        /// </summary>        
        T Read(T reuse, Decoder decoder);
    }
}