PBlobInfo.java from Texai at Krugle

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/*
 * PBlobInfo.java
 *
 * Created on October 24, 2006, 1:46 PM
 *
 * Description: Contains the specialized fields for PBlob.
 *
 * Copyright (C) 2006 Stephen L. Reed.
 *
 * This program is free software; you can redistribute it and/or modify it under the terms
 * of the GNU General Public License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program;
 * if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

package org.texai.kb.ejb.entity;

import java.io.Serializable;
import javax.persistence.Basic;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Lob;
import javax.persistence.OneToOne;
import javax.persistence.Transient;
import javax.sql.rowset.serial.SerialBlob;

/**
 * Entity class PBlobInfo
 *
 * @author reed
 */
@Entity
public class PBlobInfo implements Serializable {

  /**
   * Determines if a de-serialized file is compatible with this class.
   *
   * Maintainers must change this value if and only if the new version
   * of this class is not compatible with old versions. See Sun docs
   * for <a href=http://java.sun.com/products/jdk/1.1/docs/guide
   * /serialization/spec/version.doc.html> details. </a>
   *
   * Not necessary to include in first version of the class, but
   * included here as a reminder of its importance.
   */
  @Transient
  private static final long serialVersionUID = 1L;

  /** the id */
  @Id
  @GeneratedValue(strategy = GenerationType.AUTO)
  private Long pBlobInfoId;               // NOPMD

  /** the persistent binary large object */
  @OneToOne
  private PBlob pBlob;                    // NOPMD

  /** the binary large object value */
  @Lob @Basic
  private SerialBlob blobValue;           // NOPMD

  /** Creates a new instance of PBlobInfo */
  public PBlobInfo() {
    super();
  }

  /** Creates a new instance of PBlobInfo.
   *
   * @param pBlob the persistent binary large object
   * @param blobValue the binary large object value
   */
  public PBlobInfo(final PBlob pBlob, final SerialBlob blobValue) {
    super();
    //Preconditions
    assert pBlob != null : "pBlob must not be null";
    assert blobValue != null : "blobValue must not be null";

    this.pBlob = pBlob;
    this.blobValue = blobValue;
  }

  /**
   * Gets the id of this PBlobInfo.
   *
   * @return the id
   */
  public Long getId() {
    return this.pBlobInfoId;
  }

  /** Gets the binary large object value.
   *
   * @return the binary large object value
   */
  public SerialBlob getBlobValue() {
    return blobValue;
  }

  /** Returns a string representation of this object.
   *
   * @return a string representation of this object
   */
  @Override
  public String toString() {
    return blobValue.toString();
  }

  /** Returns a CycL representation of this object.
   *
   * @return a CycL representation of this object
   */
  public String toCycLString() {
    return toString();
  }

  /** gets the persistent binary large object
   *
   * @return the persistent binary large object
   */
  public PBlob getPBlob() {
    return pBlob;
  }

}
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