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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