annotations_embeddedId

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 @Entity(name="linux")
 public class LinuxDistribuition {

 @EmbeddedId
 private IdLinux id;

 @Column
 private String guy;

 @Column
 private String version;

 @Column(name="descriptions")
 private String descriptions;
 
//getter and setter
}

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EmbeddedId

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 public class IdLinux {
   
 @Column
 private String name;

 @Column
 private String kernelVersion;

 //getter and setter

 }

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