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PDate.java from Texai at Krugle


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/*
 * PDate.java
 *
 * Created on March 29, 2007, 2:15 PM
 *
 * Description: PDate is a persistent date in the Texai logical representation language.
 *
 * Copyright (C) 2007 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.entity;

import com.sleepycat.persist.model.Entity;
import com.sleepycat.persist.model.Relationship;
import com.sleepycat.persist.model.SecondaryKey;
import java.util.Date;
import org.texai.kb.Constants;
import org.texai.kb.ejb.session.shared.KBPartitionFacadeLocal;

/**
 *
 * @author reed
 */
@Entity
public class PDate extends AbstractTerm {
  
  /** the date */
  @SecondaryKey(relate=Relationship.ONE_TO_ONE)
  private Date dateValue;                 // NOPMD

  /** Creates a new instance of PDate. */
  public PDate() {
    super();
  }
  
  /** Creates a new instance of PDate.
   *
   * @param termId the database term ID
   * @param dateValue the date
   */
  public PDate(final int termId, final Date dateValue) {
    super(termId);
    //Preconditions
    assert dateValue != null : "dateValue must not be null";

    this.dateValue = dateValue;
  }

  /** Gets the term type.
   *
   * @return the term type
   */
  public byte getTermType() {
    return Constants.DATE;
  }

  /** Gets the date.
   *
   * @return the date
   */
  public Date getDateValue() {
    return dateValue;
  }

  /**
   * Returns a hash code value for the object. 
   *
   * @return a hash code value for this object
   */
  @Override
  public int hashCode() {
    return getTermId();
  }

  /** Determines whether another object is equal to this object.
   *
   * @param object the reference object with which to compare
   * @return <code>true</code> if this object is the same as the argument;
   * <code>false</code> otherwise.
   */
  @Override
  public boolean equals(final Object object) {
    if (!(object instanceof PDate)) {
      return false;
    }
    final PDate that = (PDate) object;
    return this.getTermId() == that.getTermId();
  }

  /** Returns a string representation of this object.
   *
   * @param kbPartitionFacade the KB partition facade
   * @return a string representation of this object
   */
  public String toString(final KBPartitionFacadeLocal kbPartitionFacade) {
    return "\"" + dateValue.toString() + "\"";
  }

  /** Returns a CycL representation of this object.
   *
   * @param kbPartitionFacade the KB partition facade
   * @return a CycL representation of this object
   */
  public String toCycLString(final KBPartitionFacadeLocal kbPartitionFacade) {
    return toString(kbPartitionFacade);
  }

}




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Texai

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Project homepage: http://sourceforge.net/projects/texai
Programming language(s): Java,Shell Script,XML
License: other

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