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Copyright 2005-2013 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.engine.transition;
Handles transitions into and out of org.kuali.rice.kew.engine.node.SubProcessNode nodes.

Author(s):
Kuali Rice Team (rice.collab@kuali.org)
See also:
org.kuali.rice.kew.engine.node.SubProcessNode
    
    public RouteNodeInstance transitionTo(RouteNodeInstance nextNodeInstanceRouteContext contextthrows Exception {
        String processName = nextNodeInstance.getRouteNode().getRouteNodeName();
        ProcessDefinitionBo process = context.getDocument().getDocumentType().getNamedProcess(processName);
        if (process == null) {
            throw new WorkflowException("Could not locate named sub process: " + processName);
        }
        RouteNodeInstance subProcessNodeInstance = nextNodeInstance;
        subProcessNodeInstance.setInitial(false);
        subProcessNodeInstance.setActive(false);
        nextNodeInstance = getRouteHelper().getNodeFactory().createRouteNodeInstance(subProcessNodeInstance.getDocumentId(), process.getInitialRouteNode());
        nextNodeInstance.setBranch(subProcessNodeInstance.getBranch());
        nextNodeInstance.setProcess(subProcessNodeInstance);
	    return nextNodeInstance;
	}
	public ProcessResult isComplete(RouteContext contextthrows Exception {
        throw new UnsupportedOperationException("isComplete() should not be invoked on a SubProcess!");
    }
    public Transition transitionFrom(RouteContext contextProcessResult processResultthrows Exception {
		RouteNodeInstance processInstance = context.getNodeInstance().getProcess();
        processInstance.setComplete(true);
		SubProcessNode node = (SubProcessNode)getNode(processInstance.getRouteNode(), SubProcessNode.class);
		SubProcessResult result = node.process(context);
		List<RouteNodeInstancenextNodeInstances = new ArrayList<RouteNodeInstance>();
		if (result.isComplete()) {
			List<RouteNodenextNodes = processInstance.getRouteNode().getNextNodes();
            for (RouteNode nextNode : nextNodes)
            {
                RouteNodeInstance nextNodeInstance = getRouteHelper().getNodeFactory().createRouteNodeInstance(processInstance.getDocumentId(), nextNode);
                nextNodeInstance.setBranch(processInstance.getBranch());
                nextNodeInstance.setProcess(processInstance.getProcess());
                nextNodeInstances.add(nextNodeInstance);
            }
		}
		return new Transition(nextNodeInstances);
	}
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