/*
 * 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.vinci.transport;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

/**
 * Interface implemented by documents that can be transported (marshalled).
 */
public interface Transportable {

  /**
   * Read the object from the input stream.
   * 
   * @param is
   *          The stream to read from.
   * @return -
   * @exception IOException -
   */
  KeyValuePair fromStream(InputStream is) throws IOException;

  /**
   * Write the object to the output stream.
   * 
   * @param os
   *          The stream to write into.
   * @exception IOException -
   */
  void toStream(OutputStream os) throws IOException;

}