Primary key not available

Question

Hi!
When i run my appication client to connect to Oracle9i database i have a next exception:
javax.ejb.CreateException: java.lang.IllegalStateException: Primary key not available.
In Oracle i set a primary key field ID.
Here is my code:
/* Generated by Together */
package ejb;
import javax.ejb.EntityBean;
import javax.ejb.EntityContext;
import javax.ejb.EJBException;
import javax.ejb.CreateException;
import java.sql.SQLException;
import java.sql.Connection;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import java.sql.PreparedStatement;
import javax.ejb.NoSuchEntityException;
import java.sql.ResultSet;
import javax.ejb.DuplicateKeyException;
import javax.ejb.RemoveException;
import java.util.Collection;
import java.util.ArrayList;
import javax.ejb.FinderException;
import javax.sql.DataSource;
import java.lang.Integer;
import java.lang.String;
import java.rmi.RemoteException;
import javax.sql.*;
import java.sql.DriverManager;
public class TestingBean implements EntityBean {
private EntityContext ctx;
public Integer userID;
public String userLogin;
public String userPassword;
public String userPrivilege;
static private final String users_res_ref = "jdbc/Oracle";
public void setEntityContext(EntityContext context) throws EJBException {
System.out.println("EntityContext before = " + ctx);
ctx = context;
System.out.println("EntityContext after = " + ctx);
public void unsetEntityContext() throws EJBException {
ctx = null;
public void ejbActivate() throws EJBException {
public void ejbPassivate() throws EJBException {
public void ejbRemove() throws EJBException {
Connection con = null;
PreparedStatement ps = null;
try {
con = getConnection();
userID = (Integer)ctx.getPrimaryKey();
ps = con.prepareStatement("DELETE FROM TLogon WHERE Id = ?");
ps.setInt(1, userID.intValue());
if (!(ps.executeUpdate() > 0)) {
throw new RemoveException ("ejbLoad: Can't remove user - " + userID);
catch (Exception e) {
throw new EJBException(e);
finally {
closeStatement(ps);
closeConnection(con);
public void ejbStore() throws EJBException {
Connection con = null;
PreparedStatement ps = null;
try {
con = getConnection();
ps = con.prepareStatement("UPDATE TLogon SET Login = ?, Password = ?, Privilege = ? WHERE Id = ?");
ps.setString(1, userLogin);
ps.setString(2, userPassword);
ps.setString(3, userPrivilege);
ps.setInt(4, userID.intValue());
ps.executeUpdate();
catch (Exception e) {
throw new EJBException(e);
finally {
closeStatement(ps);
closeConnection(con);
public void ejbLoad() throws EJBException {
Connection con = null;
PreparedStatement ps = null;
userID = (Integer)ctx.getPrimaryKey();
try {
con = getConnection();
ps = con.prepareStatement("SELECT Id, Login, Password, Privilege FROM TLogon WHERE Id = ?");
ps.setInt(1, userID.intValue());
ps.executeQuery();
ResultSet rs = ps.getResultSet();
rs.next();
userLogin = rs.getString("Login");
userPassword = rs.getString("Password");
userPrivilege = rs.getString("Privilege");
catch (Exception e) {
throw new EJBException("ejbLoad: Can't load user - " + userID);
finally{
closeStatement(ps);
closeConnection(con);
public Integer ejbCreate(Integer aUserID, String aUserLogin, String aUserPassword, String aUserPrivilege) throws CreateException, EJBException, SQLException {
System.out.println("Inititialization parameters...");
this.userID = aUserID;
this.userLogin = aUserLogin;
this.userPassword = aUserPassword;
this.userPrivilege = aUserPrivilege;
System.out.println("Setting connection to null...");
Connection con = null;
PreparedStatement ps = null;
try {           
System.out.println("Getting connection...");
con = getConnection();
System.out.println("EntityContext before getting primary key... = " + ctx);
System.out.println("Getting primary key...");
userID = (Integer)ctx.getPrimaryKey();
System.out.println("Primary key is done...");
ps = con.prepareStatement("INSERT INTO TLogon (Id, Login, Password, Privilege) VALUES (?,?,?)");
System.out.println("Inserting data...");
ps.setInt(1, userID.intValue());
ps.setString(2, userLogin);
ps.setString(3, userPassword);
ps.setString(4, userPrivilege);
ps.executeUpdate();
return aUserID;
catch (Exception e) {
throw new CreateException(e.toString());
finally{
closeStatement(ps);
closeConnection(con);
public Integer ejbFindByPrimaryKey(java.lang.Integer pk) throws FinderException, EJBException {
Connection con = null;
PreparedStatement ps = null;
try {
con = getConnection();
ps = con.prepareStatement("SELECT Id, Login, Password, Privilege FROM TLogon WHERE Id = ?");
ps.setInt(1, pk.intValue());
ps.executeQuery();
ResultSet rs = ps.getResultSet();
rs.next();
return pk;
catch(Exception e) {
throw new FinderException (e.toString());
finally {
closeStatement(ps);
closeConnection(con);
public void ejbPostCreate(Integer aUserID, String aUserLogin, String aUserPassword, String aUserPrivilege) throws CreateException, EJBException, SQLException {
          /* Write your code here */
public Collection ejbFindAllUsers() throws EJBException, FinderException {
Connection con = null;
PreparedStatement ps = null;
try {
con = getConnection();
ps = con.prepareStatement("SELECT Id FROM TLogon");
ps.executeQuery();
ResultSet rs = ps.getResultSet();
ArrayList v = new ArrayList();
Integer pk;
while(rs.next()) {
pk = new Integer(rs.getInt(1));
v.add(pk);
return v;
catch(Exception e) {
throw new FinderException(e.toString());
finally {
closeStatement(ps);
closeConnection(con);
public Integer getUserID() throws RemoteException, EJBException {return userID;}
public void setUserID(Integer param) throws RemoteException, EJBException {this.userID = param;}
public String getUserLogin() throws RemoteException, EJBException {return userLogin;}
public void setUserLogin(String param) throws RemoteException, EJBException {this.userLogin = param;}
public String getUserPassword() throws RemoteException, EJBException {return userPassword;}
public void setUserPassword(String param) throws RemoteException, EJBException {this.userPassword = param;}
public String getUserPrivilege() throws RemoteException, EJBException {return userPrivilege;}
public void setUserPrivilege(String param) throws RemoteException, EJBException {this.userPrivilege = param;}
private Connection getConnection() throws SQLException {
InitialContext initCtx = null;
try {
initCtx = new InitialContext();
DataSource ds = (javax.sql.DataSource)initCtx.lookup("java:comp/env/" + users_res_ref);
return ds.getConnection();
catch (Exception e) {
throw new EJBException(e);
private void closeStatement(PreparedStatement ps) {
try {
if (ps != null) {ps.close();}
catch (Exception e) {
throw new EJBException(e);
private void closeConnection(Connection con) {
try {
if(con != null) {con.close();}
catch(Exception e) {
throw new EJBException(e);
What i do wrong?
Please help!!!!

Answer 1

Very BIG thank you!!!!
That's right, but i must delete this method only in ejbCreate?
And i have a next exception: java.sql.SQLException: ORA-00947: not enough values. Why?
Here is my code db:
CREATE TABLE "SYSTEM"."TLOGON" ("ID" NUMBER(20) NOT NULL, "LOGIN"
VARCHAR2(20 byte) NOT NULL, "PASSWORD" VARCHAR2(20 byte) NOT
NULL, "PRIVILEGE" VARCHAR2(20 byte) NOT NULL,
CONSTRAINT "ID" PRIMARY KEY("ID")
USING INDEX
TABLESPACE "SYSTEM"
STORAGE ( INITIAL 12K NEXT 12K MINEXTENTS 1 MAXEXTENTS
2147483645 PCTINCREASE 50 FREELISTS 1 FREELIST GROUPS 1)
PCTFREE 10 INITRANS 2 MAXTRANS 255)
TABLESPACE "SYSTEM" PCTFREE 10 PCTUSED 40 INITRANS 1
MAXTRANS 255
STORAGE ( INITIAL 12K NEXT 12K MINEXTENTS 1 MAXEXTENTS 249
PCTINCREASE 50 FREELISTS 1 FREELIST GROUPS 1)
LOGGING
And my client:
package ejb.client;
import javax.naming.Context;
import javax.rmi.PortableRemoteObject;
import ejb.TestingHome;
import ejb.Testing;
import java.util.Collection;
import java.rmi.RemoteException;
import javax.ejb.FinderException;
import javax.naming.InitialContext;
public class TestingClient {
public static void main(String []args) {
try {
System.out.println("Step #1");
Context initial = new InitialContext();
System.out.println("Step #2");
Object objref = initial.lookup("java:comp/env/ejb/SimpleTesting");
System.out.println("Step #3");
ejb.TestingHome home = (ejb.TestingHome)PortableRemoteObject.narrow(objref, ejb.TestingHome.class);
System.out.println("Step #4");
ejb.Testing aTesting;
for(int i = 0; i < 3; i++) {
String login = users[0];
String password = users[i][1];
String privilege = users[i][2];
System.out.println("Adding user..." + login + "\n" + password + "\n" + privilege);
home.create(new Integer(i+1), login, password, privilege);
Integer i = new Integer(2);
home.create(i, "Zatoka", "password", "admin");
catch(Exception e) {
e.printStackTrace();
//private static String JNDI = "ejb.TestingHome";
private final static String[][] users = {{"Zatoka","*****","admin"}, {"Ivanov","234fds","user"},{"Petrov","dcd2","user"}};
BIG thanks!!!