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PKCS#11 wrapper based on sunpkcs11
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// Copyright (c) 2002 Graz University of Technology. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
//    this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//
// 3. The end-user documentation included with the redistribution, if any, must
//    include the following acknowledgment:
//
//    "This product includes software developed by IAIK of Graz University of
//     Technology."
//
//    Alternately, this acknowledgment may appear in the software itself, if and
//    wherever such third-party acknowledgments normally appear.
//
// 4. The names "Graz University of Technology" and "IAIK of Graz University of
//    Technology" must not be used to endorse or promote products derived from
//    this software without prior written permission.
//
// 5. Products derived from this software may not be called "IAIK PKCS Wrapper",
//    nor may "IAIK" appear in their name, without prior written permission of
//    Graz University of Technology.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
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package iaik.pkcs.pkcs11.objects;

/**
 * This is a special version of a long attribute for the type
 * of a object class.
 * It provides a better toString() implementation.
 *
 * @author Karl Scheibelhofer
 * @version 1.0
 * @invariants
 */
public class ObjectClassAttribute extends LongAttribute {

  /**
   * Empty constructor.
   *
   * @preconditions
   * @postconditions
   */
  public ObjectClassAttribute() {
    super(Attribute.CLASS);
  }

  /**
   * Get a string representation of the value of this attribute.
   *
   * @return A string representation of the value of this attribute.
   * @preconditions
   * @postconditions (result <> null)
   */
  @SuppressWarnings("restriction")
  @Override
  protected String getValueString() {
    if ((ckAttribute != null) && (ckAttribute.pValue != null)) {
      return PKCS11Object.getObjectClassName((Long) ckAttribute.pValue);
    } else {
      return "";
    }
  }

}