/*

  * 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.giraph.utils;

 /**

  * UnsafeReusableByteArrayInput is a data structure to read from a

  * byte buffer with a read pointer that can be moved to desired location

  */

 public class UnsafeReusableByteArrayInput extends UnsafeArrayReads {

   /**

    * Default Constructor

    */

   public UnsafeReusableByteArrayInput() {

     super(null, 0, 0);

   }

   /**

    * Initialize the object with all required parameters

    *

    * @param buf byte buffer

    * @param offset offset in the buffer

    * @param length length of the valid data

    */

   public void initialize(byte[] buf, int offset, int length) {

     this.buffer = buf;

     this.position = offset;

     this.limit = length;

   }

 }