/*

  * Copyright 2007 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.engine.RouteContext;

 import org.kuali.rice.kew.exception.WorkflowException;

 /**

  * A rule is an entity that can be evaluated at runtime to generate a list of {@link RuleResponsibility}s

  * to which to dispatch action requests.

  * @see RuleBaseValues

  * @see RuleExpressionResult

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

  */

 public interface RuleExpression {

     /**

      * Performs an evaluation and returns a list of 0 or more {@link RuleResponsibility}s to which to dispatch action requests

      * @param rule the rule that this rule expression applies to

      * @param context the RouteContext under which the expression is being evaluated

      * @return the result of the rule evaluation

      * @throws WorkflowException

      */

     public RuleExpressionResult evaluate(Rule rule, RouteContext context) throws WorkflowException;

 }