/*

  * Copyright 2005-2008 The Kuali Foundation

  * 

  * 

  * Licensed under the Educational Community License, Version 2.0 (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.opensource.org/licenses/ecl2.php

  * 

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 package org.kuali.rice.kew.rule;

 import org.kuali.rice.kew.validation.RuleValidationContext;

 import org.kuali.rice.kew.validation.ValidationResults;

 /**

  * A simple interface for handling validation of rules.  Validation results are returned in a

  * ValidationResults object which consists of a series of error messages regarding the

  * rule.  The user who is adding or editing the rule is passed to validate as well as the

  * rule to be validated.

  * 

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public interface RuleValidationAttribute {

         /**

          * Validates the rule within the given RuleValidationContext.

          * 

          * @return a ValidationResults object representing the results of the validation, if this is

          * empty or <code>null</code> this signifies that validation was successful.

          */

         public ValidationResults validate(RuleValidationContext validationContext) throws Exception;

 }