myvalidator.java

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/******************************************************************************
 * The contents of this file are subject to the   Compiere License  Version 1.1
 * ("License"); You may not use this file except in compliance with the License
 * You may obtain a copy of the License at http://www.compiere.org/license.html
 * 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 Compiere ERP & CRM Smart Business Solution. The Initial
 * Developer of the Original Code is Jorg Janke. Portions created by Jorg Janke
 * are Copyright (C) 1999-2005 Jorg Janke.
 * All parts are Copyright (C) 1999-2005 ComPiere, Inc.  All Rights Reserved.
 * Contributor(s): ______________________________________.
 *****************************************************************************/
package compiere.model;

import org.compiere.model.*;
import org.compiere.util.*;


/**
 *	Validator Example Implementation
 *	
 *	@author Jorg Janke
 *	@version $Id: MyValidator.java,v 1.4 2005/05/21 19:01:23 jjanke Exp $
 */
public class MyValidator implements ModelValidator
{
	/**
	 *	Constructor.
	 *	The class is instanciated when logging in and client is selected/known
	 */
	public MyValidator ()
	{
		super ();
	}	//	MyValidator
	
	/**	Logger			*/
	private static CLogger log = CLogger.getCLogger(MyValidator.class);
	/** Client			*/
	private int		m_AD_Client_ID = -1;
	
	
	/**
	 *	Initialize Validation
	 *	@param engine validation engine 
	 *	@param client client
	 */
	public void initialize (ModelValidationEngine engine, MClient client)
	{
		log.info(client.toString());
		m_AD_Client_ID = client.getAD_Client_ID();
		
		//	We want to be informed when C_Order is created/changed
		engine.addModelChange("C_Order", this);
		//	We want to validate Order before preparing 
		engine.addDocValidate("C_Order", this);
	}	//	initialize

    /**
     *	Model Change of a monitored Table.
     *	Called after PO.beforeSave/PO.beforeDelete
     *	when you called addModelChange for the table
     *	@param po persistent object
     *	@param type TYPE_
     *	@return error message or null
     *	@exception Exception if the recipient wishes the change to be not accept.
     */
	public String modelChange (PO po, int type) throws Exception
	{
		if (po.get_TableName().equals("C_Order") && type == TYPE_CHANGE)
		{
			MOrder order = (MOrder)po;
			log.info(po.toString());
		}
		return null;
	}	//	modelChange
	
	/**
	 *	Validate Document.
	 *	Called as first step of DocAction.prepareIt 
     *	when you called addDocValidate for the table.
     *	Note that totals, etc. may not be correct.
	 *	@param po persistent object
	 *	@param timing see TIMING_ constants
     *	@return error message or null
	 */
	public String docValidate (PO po, int timing)
	{
		//	Ignore all after Complete events
		if (timing == TIMING_AFTER_COMPLETE)
			return null;
		//
		if (po.get_TableName().equals("C_Order"))
		{
			MOrder order = (MOrder)po;
			log.info(po.toString());
		}
		return null;
	}	//	docValidate
	
	/**
	 *	User Login.
	 *	Called when preferences are set
	 *	@param AD_Org_ID org
	 *	@param AD_Role_ID role
	 *	@param AD_User_ID user
	 *	@return error message or null
	 */
	public String login (int AD_Org_ID, int AD_Role_ID, int AD_User_ID)
	{
		log.info("AD_User_ID=" + AD_User_ID);
		return null;
	}	//	login

	
	/**
	 *	Get Client to be monitored
	 *	@return AD_Client_ID client
	 */
	public int getAD_Client_ID()
	{
		return m_AD_Client_ID;
	}	//	getAD_Client_ID

}	//	MyValidator