EJB3EntityBean

    import javax.persistence.Column;
    import javax.persistence.Entity;
    import javax.persistence.GeneratorType;
    import javax.persistence.Id;
    import javax.persistence.Inheritance;
    import javax.persistence.NamedQueries;
    import javax.persistence.NamedQuery;
    import javax.persistence.OneToMany;
    import javax.persistence.SequenceGenerator;
    import javax.persistence.Table;
    import javax.persistence.Version;
    
    @Entity(name="User")
    @Table(name="T_USER")
    @Inheritance
    @SequenceGenerator(name="ID_SEQ", sequenceName="SEQ_USER")
    @NamedQueries({
        @NamedQuery(name="findUserByUserName", 
                    queryString="SELECT u FROM User u WHERE u.userName = :username")
    })
    public class User implements Serializable {
        private int id, versionnr;
        private String userName, password, description;
    
        @Id(generate=GeneratorType.SEQUENCE, generator="ID_SEQ")
        public int getId() {
            return id;
        }
    
        public void setId(int id) {
            this.id = id;
        }
    
        @Version
        public int getVersionnr() {
            return versionnr;
        }
    
        public void setVersionnr(int versionnr) {
            this.versionnr = versionnr;
        }
    
        @Column(nullable=false, unique=true)
        public String getUsername() {
            return userName;
        }
    
        public void setUsername(String username) {
            this.userName = username;
        }
    
        @Column(name="pass", nullable=false)
        public String getPassword() {
            return password;
        }
    
        public void setPassword(String password) {
            this.password = password;
        }
    
        public String getDescription() {
            return description;
        }
    
        public void setDescription(String description) {
            this.description = description;
        }
    }
    

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