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1   /**
2    * Copyright 2005-2011 The Kuali Foundation
3    *
4    * Licensed under the Educational Community License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.opensource.org/licenses/ecl2.php
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.kuali.rice.kew.engine.node;
17  
18  import org.kuali.rice.kew.engine.RouteContext;
19  import org.kuali.rice.kew.engine.RouteHelper;
20  
21  /**
22   * A Node type which can be used to dynamically generate a route path for a document.
23   * 
24   * @author Kuali Rice Team (rice.collab@kuali.org)
25   */
26  public interface DynamicNode extends Node {
27  
28  	/**
29  	 * Invoked when the engine first encounters this DynamicNode.  Should return a {@link DynamicResult} containing 
30  	 * the first {@link RouteNodeInstance} in the dynamic process.
31  	 */
32  	public DynamicResult transitioningInto(RouteContext context, RouteNodeInstance process, RouteHelper helper) throws Exception;
33  	
34  	/**
35  	 * Invoked everytime a node in the dynamic process completes.  Should return a {@link DynamicResult} with the 
36  	 * {@link RouteNodeInstance} (or instances) of the next node in the dynamic graph.  If this returns no next 
37  	 * node then the dynamic process will be considered completed.
38  	 */
39  	public DynamicResult transitioningOutOf(RouteContext context, RouteHelper helper) throws Exception;
40  	
41  }