AbstractTerm.java from Texai at Krugle

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/*
 * AbstractTerm.java
 *
 * Created on October 15, 2006, 10:26 PM
 *
 * Description: AbstractTerm is an logical term in the Texai logical representation language.
 *
 * 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.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Inheritance;
import javax.persistence.InheritanceType;
import javax.persistence.Transient;

/**
 * Entity class AbstractTerm
 *
 * @author reed
 */
@Entity
@Inheritance(strategy=InheritanceType.SINGLE_TABLE)
public abstract class AbstractTerm implements Serializable {   // NOPMD

  /**
   * 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 database term ID injected by the container */
  @Id
  @GeneratedValue(strategy = GenerationType.TABLE)
  private Long termId;                                     // NOPMD
  
  /** Creates a new instance of AbstractTerm */
  public AbstractTerm() {
    super();
  }

  /**
   * Gets the term ID of this AbstractTerm.
   *
   * @return the term ID
   */
  public Long getTermId() {
    return this.termId;
  }


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