Entity bean doesn't return hours/min/sec from a Date database field

Hello:
I'mm working with Sun One 7 Appserv and Oracle 9i
I'm having a strange behaviour with getter methods in entity beans when the return value is a Timestamp
In database, the field's type is Date, but the return value's type is Timestamp
In this case, the hours/min/sec values return into Timestamp value are always 00:00:00
For example: in database , F field is a Date and has got the value "12/12/2006 12:30:00"
After Timestamp t = entityRef.getF() call , t has got the "12/12/2006 00:00:00" value
The strange case is that in anothers AS ( like JBoss ) , the same code returns right
Any problem with Oracle 9i in SunOne 7 ? Any problem with JDBC driver ?
Thanks !
Best regards

Well, I found the solution.
The problem was the ojdbc14.jar driver, which made wrong schema files.
Exactly, with the bad ojdbc14.jar, generated this entry
<_type>91</_type>
when the right for time types is
<_type>91</_type>
I dont know beause the new ojdbc14.jar works fine, but I paste its size
ojdbc14.jar good : 1181679 bytes

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Hi
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4:00:00
7:00:00
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I have not used this function, and do not have access to an Oracle DB at the moment to test it, maybe you can confirm what I am thinking:
You state to use:
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to return the minutes portion, why are you then dividing by 24?
Should you not mod by 60?
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Ross
http://www.RossGoodman.com

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3                    sysdate            Discharge_Date
4               from dual
5            )
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I've read the "Simplifying J2EE and EJB Development with BC4J" white paper including the "How Does EJB 2.0 Change the Picture?" section, but that seems to have been written at a time when EJB 2.0 support was a rarity.IMO there's no change.
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to be through a DAO tier that's SQL based. With BC4J you get transactional support too, so
why bother with EJB, except to be wrapped by SLSB's for remotability from the client.
I'd like to get some feedback from people who have had experience with both. We are basically starting this application from scratch, although we have relational tables from our legacy C++ application that will serve as the basis for the Java object model. So what would we gain/lose by using entity objects? I'm at the end of phase one of a medium scale BC4J project which was initiated after scrapping
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issue. We found hand coding the Sun architecture to be 400% slower, if you don't hit any of the
above mentioned bumps in the road. We never got to reports, which would have been imposible without
custom DAOs.
I must admit, I'm leaning toward using entity beans over a vendor-specific persistence framework, but if there are compelling reasons to choose entity objects (besides those mentioned in the white paper), I'd like to hear them. Please speak slowly, as I'm new to BC4J. :)You're not the first to ask this question nor the last. Sun's happy talk in the face of their
king has great cloths sell job to fend off .net will take more than just J2EE Anti-patterns books
to displell. Try the reports and finders experiements in EJB 2.0. You'll no doubt learn alot
and read more news group posts in the process.
Heck, you might even discover that 903 oc4j's CMR and EQL can instantiate 1000's of Entity beans,
JNDI entries, return a Collection of handles, your client get the ValueObjects and build a report
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curt

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Even my code is also almost the same....i am pasting the code below...Please go through it and let me know if I have made any mistake..
EditVendorEntityBean.....(Bean Class)
package code.beans.EditVendor;
import code.beans.dataAccess.*;
import javax.ejb.CreateException;
import javax.ejb.RemoveException;
import javax.ejb.EntityBean;
import javax.ejb.EntityContext;
import javax.ejb.EJBException;
import javax.ejb.FinderException;
import javax.ejb.ObjectNotFoundException;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import java.sql.*;
import javax.sql.*;
import java.util.*;
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public class EditVendorEntityBean implements javax.ejb.EntityBean {
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 private String username;
private int Vendor_ID;
private int Category_Id;
private String Category_Name;
private String Vendor_Name;
private String Vendor_Address1;
private String Vendor_Address2;
private String Contact_Name;
private String Home_Phone;
private String Work_Phone;
private String email;
private String faxno;
private String userloginname;
private boolean dirtyFlag = false;
private EntityContext context;
private static final String DS_NAME = "jdbc/spiPOPS";
Connection con = null;
Statement stmt = null;
PreparedStatement st = null;
ResultSet res = null;
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// Begin of Busines Methods
public void setData (String[] catname, String vendorname,String vendadd1,String vendadd2,String vendcontact,String venoff,String venres,String mailid,String venfax) {
 System.out.println("in setData where Vendor Id= "+ Vendor_ID);
 boolean status=false;
 boolean existing=false;
 ArrayList cat=new ArrayList();
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 System.out.println("Size of cat array -->" + cat.size() + " and string array size -->" + catname.length);
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 for(int i=0;i<cat.size();i++)
 existing=false;
 String tempdata=(String)cat.get(i);
 for(int j=0;j<catname.length;j++)
 if(tempdata.equals(catname[j]))
 existing=true;
 if(!existing)
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 System.out.println("Could not delete record in POPS_VENDOR_CATEGORY for -->" + tempdata);
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 try
 for(int i=0;i<catname.length;i++)
 status=false;
 String strcat=catname;
 status=checkcat(this.Vendor_ID,strcat.trim());
 if(!status)
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 System.out.println("Could not insert or select from POPS_VENDOR_CATEGORY table");
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 this.Vendor_Address1 =vendadd1;
 this.Vendor_Address2 =vendadd2;
 this.Contact_Name =vendcontact;
 this.Work_Phone =venoff;
 this.Home_Phone =venres;
 this.email =mailid;
 this.faxno =venfax;
 dirtyFlag = true;
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public Vector getData() {
 Vector vctRec=new Vector();
 ArrayList arrdatas = new ArrayList();
 arrdatas.add(""+this.Vendor_ID);
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 arrdatas.add(this.Vendor_Address1);
 arrdatas.add(this.Vendor_Address2);
 arrdatas.add(this.Contact_Name);
 arrdatas.add(this.Work_Phone);
 arrdatas.add(this.Home_Phone);
 arrdatas.add(this.email);
 arrdatas.add(this.faxno);
 vctRec.addElement(arrdatas);
 ArrayList cat=new ArrayList();
 try
 System.out.println("Calling getcategorylist from getdata with vendorid-->" + this.Vendor_ID);
 cat = getcategorylist(this.Vendor_ID);
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 allcats = getallcategorylist();
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 System.out.println("Could not get datas for category list");
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 public void ejbActivate() {
 Vendor_ID = Integer.parseInt((String)context.getPrimaryKey());
 System.out.println("Inside ejbActivate Vendor_ID-->"+ Vendor_ID);
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 public void ejbLoad() {
 System.out.println("Inside ejbLoad ********" );
try {
loadRow();
}catch (Exception ex) {
 System.out.println("Failed in loadRow()");
throw new EJBException("ejbLoad: " +
ex.getMessage());
 * ejbPassivate
 public void ejbPassivate() {
 System.out.println("Inside ejbPassivate " );
Vendor_ID = 0;
 * ejbRemove
 public void ejbRemove() throws javax.ejb.RemoveException {
 //Empty Method
 * ejbStore
 public void ejbStore() {
System.out.println("Inside ejbStore " );
try {
storeRow();
}catch (Exception ex) {
 System.out.println("Exception thrown in storeRow" + ex.getMessage());
throw new EJBException("ejbLoad: " +
ex.getMessage());
 * getEntityContext
 public javax.ejb.EntityContext getEntityContext() {
 return context;
 * setEntityContext
 public void setEntityContext(javax.ejb.EntityContext ctx) {
 System.out.println("Inside setEntityContext " );
try{
 con = getConnection(DS_NAME);
 System.out.println("DB Connection Created!!");
catch(Exception e){
this.context = ctx;
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 public void unsetEntityContext() {
System.out.println("Inside unsetEntityContext " );
closeDbConnection(con, res, st);
this.context = null;
 * ejbCreate
 //code.beans.EditVendor.EditVendorEntityKey
 public code.beans.EditVendor.EditVendorEntityKey ejbCreate(String vendorid)
 throws javax.ejb.CreateException {
 return new EditVendorEntityKey(vendorid);
 //return null;
 * ejbPostCreate
 public void ejbPostCreate(String vendorid) throws javax.ejb.CreateException {
 //Empty
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 //code.beans.EditVendor.EditVendorEntityKey
 public code.beans.EditVendor.EditVendorEntityKey ejbFindByPrimaryKey(
 code.beans.EditVendor.EditVendorEntityKey primaryKey)
 throws javax.ejb.FinderException {
try {
if(selectByPrimaryKey(Integer.parseInt(primaryKey.getVendorId()))) {
 System.out.println("Leaving the findbyprimarykey method from the entity bean");
 return primaryKey;
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}else {
 throw new ObjectNotFoundException
 ("Row for id " + primaryKey + " not found.");
}catch (Exception ex) {
throw new EJBException("EXCEPTION IN ejbFindByPrimaryKey :- " + ex.getMessage());
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private boolean selectByPrimaryKey(int priKey)
throws SQLException {
 System.out.println("inside selectByPrimaryKey for primary key " + priKey);
String queryStr ="SELECT VENDOR_ID FROM POPS_VENDOR WHERE VENDOR_ID = " + priKey;
System.out.println("in selectByPrimaryKey where queryString is: "+ queryStr);
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ResultSet result = stmt.executeQuery(queryStr);
if(!result.next()) {
stmt.close();
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return false;
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stmt.close();
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 ArrayList catadatas=new ArrayList();
 if(!result.next())
 throw new SQLException("No record for primary key" + Vendor_ID);
 this.Vendor_ID =Vendor_ID;
 this.Vendor_Name =result.getString("VENDOR_NAME");
 this.Vendor_Address1 =result.getString("VENDOR_ADDRESS1");
 this.Vendor_Address2 =result.getString("VENDOR_ADDRESS2");
 this.Contact_Name =result.getString("CONTACT_NAME");
 this.Home_Phone =result.getString("HOME_PHONE");
 this.Work_Phone =result.getString("WORK_PHONE");
 this.email =result.getString("EMAIL_ID");
 this.faxno =result.getString("FAX_NO");
 System.out.println("Leaving loadrow method with loaded datas for vendor -->" + Vendor_ID);
 stmt.close();
private ArrayList getcategorylist(int vendor) throws SQLException{
 String queryStr ="SELECT DISTINCT(VENDOR_CAT) FROM POPS_VENDOR_CATEGORY WHERE VENDOR_ID=" + vendor;
 System.out.println("Query for the cat list --> " + queryStr);
 stmt = con.createStatement();
 ResultSet result = stmt.executeQuery(queryStr);
 ArrayList catdatas=new ArrayList();
try{
 while(result.next())
 catdatas.add(result.getString("VENDOR_CAT"));
 catch (SQLException e){
 stmt.close();
 System.out.println("Could not retrieve datas for Category list");
 stmt.close();
 System.out.println("size off array for cat -->" + catdatas.size() + " and datas ->" + catdatas);
 return catdatas;
 private ArrayList getallcategorylist() throws SQLException{
 //String queryStr ="SELECT DISTINCT(VENDOR_CAT) FROM POPS_VENDOR_CATEGORY";
 StringBuffer strquery=new StringBuffer(20);
 strquery.append("SELECT DISTINCT(CATEGORY_NAME) FROM POPS_CATEGORY");
 stmt = con.createStatement();
 //ResultSet result = stmt.executeQuery(queryStr);
 ResultSet result = stmt.executeQuery(strquery.toString());
 ArrayList catdatas=new ArrayList();
 try{
 while(result.next())
 //catdatas.add(result.getString("VENDOR_CAT"));
 catdatas.add(result.getString("CATEGORY_NAME"));
 catch (SQLException e){
 stmt.close();
 System.out.println("Could not retrieve datas for All Category list");
 stmt.close();
 return catdatas;
 private void delvencat(int vendor,String vencat) throws SQLException {
 int update=-1;
 stmt = con.createStatement();
 String queryStr ="DELETE FROM POPS_VENDOR_CATEGORY WHERE VENDOR_ID = " + vendor + " AND VENDOR_CAT = '" + vencat.toUpperCase() + "'";
 System.out.println("Delete query --> " + queryStr);
 update= stmt.executeUpdate(queryStr);
 if(update!=1)
 System.out.println("Did not find data to delete");
 stmt.close();
 private void insertvencat(int vendor,String vencat) throws SQLException {
 int update=-1;
 String queryStr ="INSERT INTO POPS_VENDOR_CATEGORY(VENDOR_ID,VENDOR_CAT)" +
 " VALUES(" + vendor +",'" + vencat + "')";
 System.out.println("Insert query --> " + queryStr);
 stmt = con.createStatement();
 update=stmt.executeUpdate(queryStr);
 if(update!=1)
 System.out.println("Could not insert records in the database");
 stmt.close();
 private boolean checkcat(int vendor,String catven) throws SQLException {
 boolean datastatus=false;
 String queryStr ="SELECT VENDOR_ID FROM POPS_VENDOR_CATEGORY WHERE VENDOR_ID = " + vendor + " AND VENDOR_CAT = '" + catven.toUpperCase() + "'";
 stmt = con.createStatement();
 ResultSet result = stmt.executeQuery(queryStr);
 datastatus=result.next();
 stmt.close();
 return datastatus;
private void storeRow() throws SQLException {
 System.out.println("Inside ejb store");
 if (!dirtyFlag) {
 System.out.println("Skipping the UPDATE because object is not dirty");
 return;
 CallableStatement cs=null;
try{
 cs = con.prepareCall("EXEC POPS_VENDOR_UPDATE " + this.Vendor_ID + ",'" + this.Vendor_Name + "','" + this.Vendor_Address1 + "','" + this.Vendor_Address2 + "','" + this.Contact_Name + "','" + this.Work_Phone + "','" + this.Home_Phone + "','" + this.email + "','" + this.faxno +"'");
 System.out.println("\n\n SQL Statement : \n " + "EXEC POPS_VENDOR_UPDATE " + this.Vendor_ID + ",'" + this.Vendor_Name + "','" + this.Vendor_Address1 + "','" + this.Vendor_Address2 + "','" + this.Contact_Name + "','" + this.Work_Phone + "','" + this.Home_Phone + "','" + this.email + "','" + this.faxno +"'");
 cs.executeUpdate();
 catch (SQLException e){
 cs.close();
 System.out. println("\n\n Error in calling stored procedure POPS_INSERT_NEW_REQUEST \n\n"+ e.getMessage() + "\n\n");
 cs.close();
 dirtyFlag = false;
 private Connection getConnection(String dbName) throws SQLException
 String configuredDataSourceName = null;
 if (dbName == null) {
 System.out.println("Attemp to get connection failed. The requested database name is null");
 DataSource dbSource = getDataSource(dbName);
 return dbSource.getConnection();
 private DataSource getDataSource(String dbName)
 // looking from cache;
 DataSource dbSource = (DataSource) dataSources.get(dbName);
 if (dbSource == null) { //we need to find it from JNDI
 try {
 Context ic = new InitialContext();
 dbSource = (DataSource) ic.lookup(dbName);
 dataSources.put(dbName, dbSource);
 }catch (NamingException e){
 return dbSource;
 * User calls this function to safely close an connection
 * @param connt The connection a datasource
 * @param rs The resulSet inside this connection
 * @param statement The statement associate with this connection
 private void closeDbConnection(Connection cont,ResultSet rs,Statement statement)
 if (rs != null)
 try {
 rs.close();
 } catch (SQLException ignored) {
 ignored.printStackTrace();
 if (statement != null)
 try {
 statement.close();
 } catch (SQLException ignored) {
 ignored.printStackTrace();
 if (cont != null)
 try {
 cont.close();
 } catch (SQLException ignored) {
 ignored.printStackTrace();
 } //closeDbConnection
EditVendorEntity (Remote Interface)
package code.beans.EditVendor;
import javax.ejb.EJBObject;
import java.rmi.RemoteException;
import java.util.*;
* Remote interface for Enterprise Bean: EditVendorEntity
public interface EditVendorEntity extends javax.ejb.EJBObject {
 public void setData (String[] catname, String vendorname,String vendadd1,String vendadd2,String vendcontact,String venoff,String venres,String mailid,String venfax)
 throws RemoteException;
public Vector getData() throws RemoteException;
EditVendorEntityHome (Home Interface)
package code.beans.EditVendor;
import java.rmi.RemoteException;
import javax.ejb.CreateException;
import javax.ejb.FinderException;
import javax.ejb.DuplicateKeyException;
import javax.ejb.EJBHome;
import java.util.*;
* Home interface for Enterprise Bean: EditVendorEntity
public interface EditVendorEntityHome extends javax.ejb.EJBHome {
 * Creates an instance from a key for Entity Bean: EditVendorEntity
 public code.beans.EditVendor.EditVendorEntity create(String vendorid)
 throws javax.ejb.CreateException, java.rmi.RemoteException;
 * Finds an instance using a key for Entity Bean: EditVendorEntity
 public code.beans.EditVendor.EditVendorEntity findByPrimaryKey(
 code.beans.EditVendor.EditVendorEntityKey Vendor_ID)
 throws javax.ejb.FinderException, java.rmi.RemoteException;
EditVendorEntityKey (Primary Key Class)
package code.beans.EditVendor;
* Key class for Entity Bean: EditVendorEntity
public class EditVendorEntityKey implements java.io.Serializable {
 static final long serialVersionUID = 3206093459760846163L;
 public String primkey;
 * Creates an empty key for Entity Bean: EditVendorEntity
 public EditVendorEntityKey() { }
 public EditVendorEntityKey(String primarykey) {
 this.primkey=primarykey;
 public String getVendorId() {
return primkey;
 * Returns true if both keys are equal.
 public boolean equals(java.lang.Object otherKey) {
 if (otherKey instanceof code.beans.EditVendor.EditVendorEntityKey) {
 code.beans.EditVendor.EditVendorEntityKey o =
 (code.beans.EditVendor.EditVendorEntityKey) otherKey;
 return (primkey.equals(otherKey));
 return false;
 * Returns the hash code for the key.
 public int hashCode() {
 return (primkey.hashCode());
Please go through and give me your comments and solution...
Thanks in advance
Rahul

CMP Entity Bean with database specific features

Hi there,
I�m studying Entity Beans and I'm doing some experiences with SQL Server.
At first, I built a CMP Bean and marked in deploytool to create the tables. Ok, it worked.
Now, I'm trying to interact to an existent database. But, I got a problem: the primary key is defined by the Server. I can read it and I can remove entries. But, when I try to insert some entry, I can't pass the key in SQL statement. I edited the generated statement to do it, but it doesn't work. I get a RollbackException.
My question is: is it possible to do what I'm intending to do with CMP? What am I doing wrong?
Do you think that, to do this, I should use BMP Entity beans?
Thanks in advance,
Anicio

"CMP provides you with database independence and less coding efforts."
BMP is not database dependent, unless you invoke database specific things in your SQL (something I do not do). CMP on the otherhand is inherently appserver specific (which was it's goal when BEA, IBM, et al. came up with it), and still limits your design possibilities. See this thread for an example:
http://forum.java.sun.com/thread.jsp?forum=13&thread=318785
As for less coding effort, that is a relative statment. Yes a simple CMP bean requires less coding to develop the first time. I personally view a few lines of SQL to load and store the data as being fairly trivial. But that needs to be offset with the problems inherent in using appserver specific CMP implementations.
As an example, try mapping WebSphere CMP to a pre-existing database without using IBM's IDE. It's an incredible pain in the ass since WebSphere does not come with a "meet-in-the-middle" solution. Any J2EE developer that has had the experience of working with different appservers (especially if they have had to port an app, as I have) can attest to the complications that arise with each implementation.
A BMP bean, written with non-DB-specific SQL, is the most portable, most flexible approach to EntityBeans. Yes, it requires the developer to be able to write some SQL, which should not take a significant amout of time. WRT queries, you have to write them, either SQL, EQL, or some appserver specific format.
As an aside, the use of code generators to simplify the creation of EJBs lends itself well to BMP. By using a (or writing your own) code generator, you can mitigate the annoying SQL bugs that creep up early in development.

CMP Entity Bean with ejb-ql finder methods and INFORMIX database

Hi,
I have some CMP Entity Beans with finder methods defined in ejb-ql. In my ejb-jar, within <entity> definitions I have something like:
 <entity>
 <abstract-schema-name>BeanName</abstract-schema-name>
 <cmp-field><field-name>fieldOne</field-name></cmp-field>
 <cmp-field><field-name>fieldTwo</field-name></cmp-field>
 <query>
 <query-method>
 <method-name>findAll</method-name>
 <method-params></method-params>
 </query-method>
 <ejb-ql>SELECT OBJECT(o) FROM BeanName o</ejb-ql>
 </query>
 <entity>
And in persistent.xml:
<db-properties>
 <data-source-name>datasource_name</data-source-name>
</db-properties>
<entity-bean>
 <ejb-name>BeanName</ejb-name>
 <table-name>table_name</table-name>
 <field-map key-type="NoKey">
 <field-name>fieldOne</field-name>
 <column><column-name>column_one</column-name></column>
 </field-map>
 <field-map key-type="NoKey">
 <field-name>fieldTwo</field-name>
 <column><column-name>column_two</column-name></column>
 </field-map>
 <finder-descriptor>
 <method-name>findAll</method-name>
 <method-params/>
 </finder-descriptor>
Once deployed, on server side, I can found a java source file (with corresponding compiled class file) in path:
j2ee/cluster/server0/apps/companyName/MyEARApp/EJBContainer/temp/temp38837373733/route/to/package/
with names:
BeanName0_0pm.java
BeanName0_0PM.class
and the generated java file contains this code:
public java.util.Enumeration ejbFindAll() throws javax.ejb.FinderException, javax.ejb.EJBException {
 TransactionContext tc = pm.getTransactionContext();
 Connection conn = null;
 PreparedStatement pSt = null;
 ResultSet ejb_rs = null;
 int status = javax.transaction.xa.XAResource.TMSUCCESS;
 try {
 conn = pm.getConnectionForFindMethod();
 pSt = conn.prepareStatement("SELECT \"O\".\"COLUMN_ONE\",\"O\".\"COLUMN_TWO\", FROM \"TABLE_NAME\" \"O\"");
 ejb_rs = pSt.executeQuery();
I'm trying to call this method but it throws a SQLException when preparing the statement.
It seems that Informix does not like this SQL syntax because of upper case names, doble quotes on table alias, or something else.
When editing persistent.xml in netweaver, I can define the element <datasource-vendor> as ORACLE, SAPDB, MS_SQL_SERVER, DB2_UDB_AS400 or DB2_UDB_OS390 but INFORMIX is not an accepted value.
Is there any way to define how this SQL query is build?
Thanks in advance.

The return type of the finder method defined in the remote home interface is either the entity bean's remote interface or a collection of objects implementing the entity bean's remote interface. The return type of the finder method defined in the local home interface is either the entity bean's local interface or a collection of objects implementing the entity bean's local interface

Client Program accessing J2EE entity Bean

I have trouble find my Course J2EE bean from a client. (The client
runs on the same computer but a different VM from the bean.)
In Glassfish (Sun Application Server Nine), I set up a simple
Container-Managed Entity Bean. I tried to access it from an external
client as described in the glassfish EJB
FAQ https://glassfish.dev.java.net/javaee5/ejb/EJB-FAQ.html
Here is the client program:
package RS;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.xml.parsers.*;
import org.apache.xml.serialize.*;
import org.w3c.dom.*;
import org.xml.sax.*;
import RS.CourseHome;
import RS.CoursePK;
import javax.naming.InitialContext;
import javax.naming.Context;
import javax.naming.NamingException;
import java.rmi.RemoteException;
import javax.rmi.*;
import java.util.Properties;
import Debug.*;
public class Client {
public static void main (String arg[]) throws IOException {
try {
InitialContext jndiContext = new InitialContext ();
Debug.P("jndic ongtext" + jndiContext);
Object o = jndiContext.lookup("RS.CourseHome");
Debug.P("looked up object "+o + "|"+o.getClass().getName());
RS.CourseHome home =
 (RS.CourseHome)PortableRemoteObject.narrow(o,RS.CourseHome.class);
Debug.P("got home "+home);
Course C = home.create(1);
C.setName("blah");
CoursePK PK = new CoursePK();
PK.number=1;
C = home.findByPrimaryKey(PK);
Debug.P(C.getName());
catch (java.rmi.RemoteException re) {Debug.P("Remote Exception" + re.getMessage());}
catch (javax.naming.NamingException ne){Debug.P("Naming Exception"+ne.getMessage());}
catch (javax.ejb.CreateException ce){Debug.P("Create Exception"+ce.getMessage());}
catch (javax.ejb.FinderException fe){Debug.P("Finder Exception"+fe.getMessage());}
}Here is the error message:
Exception in thread "main" java.lang.ClassCastException
at com.sun.corba.ee.impl.javax.rmi.PortableRemoteObject.narrow
 (PortableRemoteObject.java:294)
at javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137)
at RS.Client.main(Client.java:26)The debugging indicates that I got the Initial Context
and got the object but the PortableObject.narrow failed:
jndic ongtextjavax.naming.InitialContext@1d85f79
looked up object IOR: (huge number deleted)
com.sun.corba.ee.impl.corba.CORBAObjectImplEarlier, I tried the version below, but based on the suggestion by Mr. Ebbert
in the forum started "Error When running the Client Program" by sree_devi,
I checked
the following. I went to "Jndi Tree Browsing" from the Administrative Console
and I found a "RS.CourseHome" entry under "ejb" I found RS.CourseHome there
but did not see the "Course" tghat I expected to see
Thus, I tried the version above:
package RS;
 --- imports deleted for conciseness
import Debug.*;
public class Client {
public static void main (String arg[]) throws IOException {
try {
InitialContext jndiContext = new InitialContext ();
Object o = jndiContext.lookup("Course");
CourseHome home =
 (CourseHome)PortableRemoteObject.narrow(o,CourseHome.class);
Course C = home.create(1);
C.setName("blah");
CoursePK PK = new CoursePK();
PK.number=1;
C = home.findByPrimaryKey(PK);
Debug.P(C.getName());
catch (java.rmi.RemoteException re) {Debug.P("Remote Exception" + re.getMessage());}
catch (javax.naming.NamingException ne){Debug.P("Naming Exception"+ne.getMessage());}
catch (javax.ejb.CreateException ce){Debug.P("Create Exception"+ce.getMessage());}
catch (javax.ejb.FinderException fe){Debug.P("Finder Exception"+fe.getMessage());}
}When I run it, I get the following Naming Exception: Course not found
I confirmed at the administrative console, that I have "Course" listed
under Enterprise Applications:
As per the ejb FAQ, I set up my $CLASSPATH so it starts as follows:
/opt/j2ee/SUNWappserver/lib/appserv-rt.jar:
/opt/j2ee/SUNWappserver/lib/javaee.jar:I also verifed in my domain.xml that the orb-listener-1, the default
naming service port was at 3700.
Here is the info on the Bean that I have running for both of the tries
at my Client code.
ejb-jar.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<ejb-jar xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd"
version="2.1">
<enterprise-beans>
 <entity>
 <description>Course</description>
 <display-name>CourseBean</display-name>
 <ejb-name>CourseBean</ejb-name>
 <home>RS.CourseHome</home>
 <remote>RS.Course</remote>
 <ejb-class>RS.CourseBean</ejb-class>
 <persistence-type>Container</persistence-type>
 <prim-key-class>RS.CoursePK</prim-key-class>
 <reentrant>false</reentrant>
 <abstract-schema-name>Course</abstract-schema-name>
 <cmp-field><field-name>number</field-name></cmp-field>
 <cmp-field><field-name>name</field-name></cmp-field>
 </entity>
</enterprise-beans>
<assembly-descriptor>
 <security-role>
 <description>Everyone</description>
 <role-name>everyone</role-name>
 </security-role>
 <method-permission>
 <unchecked/>
 <method>
 <ejb-name>CourseBean</ejb-name>
 <method-name>*</method-name>
 </method>
 </method-permission>
 <container-transaction>
 <method>
 <ejb-name>CourseBean</ejb-name>
 <method-name>*</method-name>
 </method>
 <trans-attribute>Required</trans-attribute>
 </container-transaction>
</assembly-descriptor>
</ejb-jar>
Sun-ejb-jar.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sun-ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Application Server 8.1 EJB 2.1//EN"
"http://www.sun.com/software/appserver/dtds/sun-ejb-jar_2_1-1.dtd">
<sun-ejb-jar>
<enterprise-beans>
 <name>CourseBean</name>
 <ejb>
 <ejb-name>CourseBean</ejb-name>
 <jndi-name>Course</jndi-name>
 </ejb>
<cmp-resource>
 <jndi-name>jdbc/__default</jndi-name>
 <create-tables-at-deploy>true</create-tables-at-deploy>
 <drop-tables-at-undeploy>true</drop-tables-at-undeploy>
</cmp-resource>
</enterprise-beans>
</sun-ejb-jar>
Course.java
package RS;
import java.rmi.RemoteException;
public interface Course extends javax.ejb.EJBObject {
public String getName() throws RemoteException;
public void setName (String Str) throws RemoteException;
public int getNumber() throws RemoteException;
public void setNumber (int n) throws RemoteException;
CourseHome.java
package RS;
import java.rmi.RemoteException;
import javax.ejb.CreateException;
import javax.ejb.FinderException;
public interface CourseHome extends javax.ejb.EJBHome {
public Course create(int id) throws
CreateException,RemoteException;
public Course findByPrimaryKey(CoursePK pk)
throws FinderException,RemoteException;
CourseBean.java
package RS;
import javax.ejb.EntityContext;
public abstract class CourseBean implements javax.ejb.EntityBean {
public CoursePK ejbCreate (int number) throws javax.ejb.CreateException{
this.setNumber(number);
return null;
public void ejbPostCreate (int number) {
public abstract String getName();
public abstract void setName (String str);
public abstract int getNumber ();
public abstract void setNumber (int number);
public void setEntityContext (EntityContext ctx) {}
public void unsetEntityContext() {}
public void ejbActivate () {}
public void ejbPassivate () {}
public void ejbLoad () {}
public void ejbStore () {}
public void ejbRemove() {}
}Laurence L. Leff, Ph.D. Associate Professor of Computer Science
Western Illinois University, 1 University Circle 61455, Pager: 309 367 0787
FAX 309 298 2302

hi s-mcgowan,
"some other processing" comprises of printing of debug lines and publishing to the message queue using JMS. I added more debug lines so that i could see whats really happening... here is the result
myTableHome.create(...); <----------- no exception was thrown and it returned LocalMyTable object
print out "Insert successful"
print out "publishing message"
... publish message to message queue using JMS...
print out "Publish done"
... after few milliseconds...
java.sql.BatchUpdateException: Data exception -- row already exist in index PK_MYTABLE on table MYTABLE.
From the exception it seems like its doing a batch insert. So that seems to explain why the java.sql.BatchUpdateException is thrown few milliseconds after my call to myTableHome.create(...);
Is it possible to disable batch update / insert? how?
thanks in advance,
leigh

Problems accessing tables in oracle database with ejb entity bean

I have created a simple server application that uses an entity bean (version 2.0) for an existing table in oracle database, and a session bean that is used as an outside interface for performing operations on that table.
after deploying the server and client application the client attempts to perform an operation with the session bean remote interface it obtained.
The session bean uses a locale interface to communicate with the entity bean, but when it tries to use its methods (create, findByXXX) it always get the following Exception: java.sql.SQLException: ORA-00942: table or view does not exist.
the table of course exists, and the username password I'm using has all the permissions needed for this table.
note - I'm using the Forte enterprise edition 4.0 as developer tool.
I'll be glad to get some help.
Here is the full stack trace of the exception:
javax.ejb.TransactionRolledbackLocalException: Exception thrown from bean; nested exception is: javax.ejb.EJBException: nested exception is: java.sql.SQLException: ORA-00942: table or view does not exist
javax.ejb.EJBException: nested exception is: java.sql.SQLException: ORA-00942: table or view does not exist
java.sql.SQLException: ORA-00942: table or view does not exist
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:168)
at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:208)
at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:543)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1405)
at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteDescribe(TTC7Protocol.java:643)
at oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.java:1674)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1870)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:363)
at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:314)
at com.sun.ejb.persistence.SQLEngine.ejb20Finder(SQLEngine.java:226)
at com.sun.ejb.persistence.PartitionImpl.ejbFinder(PartitionImpl.java:736)
at com.cti2.telco.core.ejb.entity.userInfo.UserInfoEJB_PM.ejbFindByEmail(UserInfoEJB_PM.java:393)
at com.cti2.telco.core.ejb.entity.userInfo.UserInfoEJB_PM_LocalHomeImpl.findByEmail(UserInfoEJB_PM_LocalHomeImpl.java:64)
at com.cti2.telco.core.ejb.UserManagerEJB.authenticate(UserManagerEJB.java:77)
at com.cti2.telco.core.ejb.UserManagerEJB.authenticate(UserManagerEJB.java:68)
at com.cti2.telco.core.ejb.UserManagerEJB_EJBLocalObjectImpl.authenticate(UserManagerEJB_EJB
LocalObjectImpl.java:63)
at com.cti2.telco.core.ejb.dispatch.TelcoFacadeEJB.userLogin(TelcoFacadeEJB.java:80)
at com.cti2.telco.core.ejb.dispatch.TelcoFacadeEJB_EJBObjectImpl.userLogin(TelcoFacadeEJB_EJBObjectImpl.java:24)
at com.cti2.telco.core.ejb.dispatch._TelcoFacadeEJB_EJBObjectImpl_Tie._invoke(Unknown Source)
at com.sun.corba.ee.internal.POA.GenericPOAServerSC.dispatchToServant(GenericPOAServerSC.java:519)
at com.sun.corba.ee.internal.POA.GenericPOAServerSC.internalDispatch(GenericPOAServerSC.java:204)
at com.sun.corba.ee.internal.POA.GenericPOAServerSC.dispatch(GenericPOAServerSC.java:112)
at com.sun.corba.ee.internal.iiop.ORB.process(ORB.java:273)
at com.sun.corba.ee.internal.iiop.RequestProcessor.process(RequestProcessor.java:84)
at com.sun.corba.ee.internal.orbutil.ThreadPool$PooledThread.run(ThreadPool.java:99)
...

Well it seems like the problems has a simple explanation. The Forte assigns a default table name (<entityName>EJBTable) when creating an entity bean from an existsing table in DB (which is not the same as the one it was created from !!!). Also, for reason unknown, when you deploy these entity beans, it doesn't even create the new table under its new name (even if instructed to).
So using the Forte we managed to use successfuly only entity beans that were created "from scretch" (when deployed their tables are created).
Does anyone know how to change the default name the Forte uses, and make it work properly with entity beans created from an existsing table (without going over the xml's) ?

Entity bean doesn't return hours/min/sec from a Date database field

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