User.java

import java.util.Date;

import javax.jdo.PersistenceManager;
import javax.jdo.annotations.Column;
import javax.jdo.annotations.IdGeneratorStrategy;
import javax.jdo.annotations.PersistenceCapable;
import javax.jdo.annotations.Persistent;
import javax.jdo.annotations.PrimaryKey;

import com.google.gwt.requestfactory.shared.Version;

@PersistenceCapable
public class User {
	
	
	public static User get(Long id) {
		PersistenceManager pm = PMF.getPm();
		
		try {
			return pm.getObjectById(User.class, id);
		} finally {
			pm.close();
		}
	}
	
	public void persist() {
		PersistenceManager pm = PMF.getPm();

		try {
			pm.makePersistent(this);
		} finally {
			pm.close();
		}
	}

	public void remove() {
		PersistenceManager pm = PMF.getPm();
		
		try {
			User attached = pm.getObjectById(User.class, this.id);
			pm.deletePersistent(attached);
		} finally {
			pm.close();
		}
	}
	
	
	@Version
	@Persistent
	private Integer version;
	
	public Integer getVersion() {
		return this.version;
	}
	
	public void setVersion(Integer version) {
		this.version = version;
	}
	
	
    @PrimaryKey
    @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
    private Long id;
    
    @Persistent
    @Column(allowsNull = "false")
    private String firstname;
    
    @Persistent
    @Column(allowsNull = "false")
    private String lastname;
    
    @Persistent
    @Column(allowsNull = "false")
    private String email;
    
    @Persistent
    @Column(allowsNull = "false")
    private String password;
    
    @Persistent
    @Column(allowsNull = "false")
    private de.....client.db.UserProxy.Type type;
    
    @Persistent
    private String steamid;
    
    @Persistent
    private Date lastLogin;
    
    @Persistent
    @Column(allowsNull = "false")
    private Date created;
	
    public User() {}
    
	public Long getId() {
		return id;
	}

	public void setId(Long id) {
		this.id = id;
	}

	public String getFirstname() {
		return firstname;
	}

	public void setFirstname(String firstname) {
		this.firstname = firstname;
	}

	public String getLastname() {
		return lastname;
	}

	public void setLastname(String lastname) {
		this.lastname = lastname;
	}

	public String getEmail() {
		return email;
	}

	public void setEmail(String email) {
		this.email = email;
	}

	public String getPassword() {
		return password;
	}

	public void setPassword(String password) {
		this.password = password;
	}

	public de.....client.db.UserProxy.Type getType() {
		return type;
	}

	public void setType(de.....db.UserProxy.Type type) {
		this.type = type;
	}

	public String getSteamid() {
		return steamid;
	}

	public void setSteamid(String steamid) {
		this.steamid = steamid;
	}

	public Date getLastLogin() {
		return lastLogin;
	}

	public void setLastLogin(Date lastLogin) {
		this.lastLogin = lastLogin;
	}

	public Date getCreated() {
		return created;
	}

	public void setCreated(Date created) {
		this.created = created;
	}
    
}

UserProxy.java

import java.util.Date;

import com.google.gwt.requestfactory.shared.EntityProxy;
import com.google.gwt.requestfactory.shared.EntityProxyId;
import com.google.gwt.requestfactory.shared.ProxyFor;

@ProxyFor(de.....server.db.User.class)
public interface UserProxy extends EntityProxy {

	public static enum Type {
		Admin, Member, User
	}
	
	Long getId();

	void setId(Long id);

	String getFirstname();

	void setFirstname(String firstname);

	String getLastname();

	void setLastname(String lastname);

	String getEmail();

	void setEmail(String email);

	String getPassword();

	void setPassword(String password);

	Type getType();

	void setType(de.....client.db.UserProxy.Type type);

	String getSteamid();

	void setSteamid(String steamid);

	Date getLastLogin();

	void setLastLogin(Date lastLogin);

	Date getCreated();

	void setCreated(Date created);
	
	EntityProxyId<UserProxy> stableId();
	
}