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   1 package net.java.examples.hmp.model.domain.userchangeinfo;\r
   2 \r
   3 import java.io.Serializable;\r
   4 \r
   5 import javax.persistence.Embedded;\r
   6 import javax.persistence.MappedSuperclass;\r
   7 \r
   8 import net.java.examples.hmp.model.domain.BaseEntity;\r
   9 import net.java.examples.hmp.model.domain.extension.IUserChangeTrackable;\r
  10 \r
  11 @MappedSuperclass\r
  12 public abstract class BaseUserChangeTrackedEntity<T extends Serializable> extends BaseEntity<T> implements IUserChangeTrackable {\r
  13 \r
  14     private static final long serialVersionUID = -7850597447088838323L;\r
  15 \r
  16     @Embedded\r
  17     private UserChangeInfo userChangeInfo = new UserChangeInfo();\r
  18 \r
  19     @Override\r
  20     public UserChangeInfo getUserChangeInfo() {\r
  21         // Workaround for Hibernate! For detailed information see this link: https://hibernate.atlassian.net/browse/HHH-7610\r
  22         if (this.userChangeInfo == null) {\r
  23             this.userChangeInfo = new UserChangeInfo();\r
  24         }\r
  25         return this.userChangeInfo;\r
  26     }\r
  27 \r
  28     public void setUserChangeInfo(UserChangeInfo userChangeInfo) {\r
  29         this.userChangeInfo = userChangeInfo;\r
  30     }\r
  31 }\r