Extension point to provide model validator instance. Use the {extension id} syntax in AD_ModelValidator.ModelValidationClass to reference the extension that will provide the concrete ModelValidator instance ( replace {extension id} with your actual extension id ). Alternatively, you can use the EventManager service to listen to model and document event which doesn't need any AD table entry ( see event.test project for example ). Implementation class name for the org.compiere.model.ModelValidator interface 1.0.0 <pre> <extension id="org.adempiere.extend.myModelValidator" name="My Model Validator" point="org.adempiere.base.ModelValidator"> <listener class="org.adempiere.extend.MyModelValidator" priority="0"> </listener> </extension> AD_ModelValidator.ModelValidationClass="org.adempiere.extend.myModelValidator" </pre> The class attribute must represent an implementor of org.compiere.model.ModelValidator This file is part of Adempiere ERP Bazaar http://www.adempiere.org. Copyright (C) Jorg Viola. Copyright (C) Contributors. This program is free software; you can redistribute it and/or modify it under the terms version 2 of the GNU General Public License as published by the Free Software Foundation. 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.