/**
    * Copyright 2010 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.osedu.org/licenses/ECL-2.0 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.student.core.entity;
  
  import javax.persistence.Embedded;
  import javax.persistence.MappedSuperclass;
  
  import org.kuali.student.common.util.UUIDHelper;
  
  @MappedSuperclass
  public abstract class VersionEntity extends MetaEntity {
  
  	@Embedded
  	private Version version;
  	
  	@Override
  	protected void onPrePersist(){
  		super.onPrePersist();
  		if(version == null){
  			version = new Version();
  		}
  		if(version.getSequenceNumber()==null){
  			version.setSequenceNumber(Long.valueOf(1));
  		}
  		version.setVersionIndId(UUIDHelper.genStringUUID(version.getVersionIndId()));
  	}
  	
  	
  	public Version getVersion() {
  		return version;
  	}
  
  	public void setVersion(Version version) {
  		this.version = version;
  	}
  }