persistentstate.java

把java对象映射成数据库表中的一条记录

/*
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations under
 * the License.
 *
 * The Original Code is jRelationalFramework.
 *
 * The Initial Developer of the Original Code is is.com.
 * Portions created by is.com are Copyright (C) 2000 is.com.
 * All Rights Reserved.
 *
 * Contributor(s): Jonathan Carlson ([e-mail])
 * Contributor(s): ____________________________________
 *
 * Alternatively, the contents of this file may be used under the terms of
 * the GNU General Public License (the "GPL") or the GNU Lesser General
 * Public license (the "LGPL"), in which case the provisions of the GPL or
 * LGPL are applicable instead of those above.  If you wish to allow use of
 * your version of this file only under the terms of either the GPL or LGPL
 * and not to allow others to use your version of this file under the MPL,
 * indicate your decision by deleting the provisions above and replace them
 * with the notice and other provisions required by either the GPL or LGPL
 * License.  If you do not delete the provisions above, a recipient may use
 * your version of this file under either the MPL or GPL or LGPL License.
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 */
package com.is.jrf;


/**
 * This is an interface for the state of a PersistentObject object.  I'm
 * sorry for the long names for some of these methods.  They have to be
 * different enough that they won't conflict with other method names.
 */
public interface PersistentState
  {

  public static final PersistentState MODIFIED = new ModifiedPersistentState();
  public static final PersistentState NEW = new NewPersistentState();
  public static final PersistentState CURRENT = new CurrentPersistentState();
  public static final PersistentState DEAD = new DeadPersistentState();

  public void markModifiedPersistentState(PersistentObject aPO);

  public void markNewPersistentState(PersistentObject aPO);

  public void markCurrentPersistentState(PersistentObject aPO);

  public void markDeadPersistentState(PersistentObject aPO);

  public boolean isModifiedPersistentState();

  public boolean isNewPersistentState();

  public boolean isCurrentPersistentState();

  public boolean isDeadPersistentState();

  } // PersistentState