/*
Wotonomy: OpenStep design patterns for pure Java applications.
Copyright (C) 2001 Michael Powers

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library 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
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see http://www.gnu.org
*/

package net.wotonomy.control;

/**
* EOValidation provides methods for validating a operation
* on an object as a whole, rather than on an individual property.
*
* @author michael@mpowers.net
* @author $Author: cgruber $
* @version $Revision: 893 $
*/
public interface EOValidation 
{
    /**
    * Validates this object for delete.
    * Throws an exception if this object cannot be deleted.
    */
    void validateForDelete();
    
    /**
    * Validates this object for insertion into the external store.
    * Throws an exception if this object cannot be inserted.
    * Validations here should be specific to insertion.
    * Implementations may call validateForSave(). 
    */
    void validateForInsert();
    
    /**
    * Validates this object for a commit to the external store.
    * Throws an exception if this object cannot be committed.
    * Validations here are not specific to either inserts or updates.
    */
    void validateForSave();
    
    /**
    * Validates this object for update to the external store.
    * Throws an exception if this object cannot be updated.
    * Validations here should be specific to updates.
    * Implementations may call validateForSave(). 
    */
    void validateForUpdate();
}

/*
 * $Log$
 * Revision 1.1  2006/02/16 13:19:57  cgruber
 * Check in all sources in eclipse-friendly maven-enabled packages.
 *
 * Revision 1.1  2001/11/13 04:13:59  mpowers
 * Added interfaces needed to begin work on EOCustomObject.
 *
 *
 */