do not require meta field in dbupdater tables

code/MoyaDatabase/src/fi/codecrew/moya/model/DBModel.java

@@ -4,22 +4,44 @@ import java.util.Date;
 
 import javax.persistence.Column;
 import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
 import javax.persistence.Table;
 import javax.persistence.Temporal;
 import javax.persistence.TemporalType;
 
+import fi.codecrew.moya.utilities.jpa.ModelInterface;
+
 @Entity
 @Table(name = "db_models")
-public class DBModel extends GenericEntity {
-	private static final long serialVersionUID = 5073284536090477220L;
+public class DBModel implements ModelInterface {
+    private static final long serialVersionUID = 5073284536090477221L;
+
+    public static final String ID_COLUMN = "id";
 
-	@Column(name="revision", nullable=false)
+    @Id
+    @Column(name = ID_COLUMN, nullable = false)
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Integer id;
+
+    @Column(name = "revision", nullable = false)
     private Integer revision;
 
-	@Column(name="applied_at")
+    @Column(name = "applied_at")
     @Temporal(TemporalType.TIMESTAMP)
     private Date appliedAt = new Date();
 
+    @Override
+    public final Integer getId() {
+        return id;
+    }
+
+    @Override
+    public final void setId(Integer id) {
+        this.id = id;
+    }
+
     public Date getAppliedAt() {
         return appliedAt;
     }