Problem with OJB-0.9.8 (jdori)

[tshitshi kia ntoni]

I'm newer in ojb.

Can anyone help me ? I got the followinf exception when trying the jdo plugin :
 
java.lang.NullPointerException 
 at org.apache.ojb.jdori.sql.OjbExtent.<init>(OjbExtent.java:86) 
 at org.apache.ojb.jdori.sql.OjbStoreManager.getExtent(OjbStoreMa 
nager.java:271) 
 at com.sun.jdori.common.PersistenceManagerImpl.getExtent(Unknown 
Source) 
 at com.sun.jdori.common.PersistenceManagerWrapper.getExtent(Unkn 
own Source) 
 at org.apache.ojb.tshi.Test1.main(Unknown Source) 


 

Here are my classes :

/**
 * Testing  AdressImpl with JDO : Test1.java
*/

package org.apache.ojb.tshi;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Vector;
import java.util.Collection;
import java.util.Iterator;

import javax.jdo.PersistenceManager;
import javax.jdo.PersistenceManagerFactory;
import javax.jdo.Query;
import javax.jdo.Transaction;
import javax.jdo.Extent;

import org.apache.ojb.broker.PersistenceBrokerFactory;
import org.apache.ojb.broker.util.ui.AsciiSplash;
import org.apache.ojb.jdori.sql.OjbStorePMF;
import org.apache.ojb.jdori.sql.OjbExtent;

 


public class Test1
{
 public static void main(String[] args)
 {
  
  PersistenceManagerFactory factory;
  PersistenceManager manager;
  try
  {
   /*
    * SETUP JDO
    */
   // first create a persistence manager factory
   factory = new OjbStorePMF(); // have to use this to make it easily portable, should 
get factory from JNDI or something
   // now retrieve the persistence manager
   manager = factory.getPersistenceManager(); 
   
   /*
    * START A TRANSACTION
    */
     // retrieve the current transaction
   Transaction t = manager.currentTransaction();
     // start a new transaction
   t.begin();
   /*
    * CREATE AN OBJECT INSTANCE
    */
   
   AddressImpl a = 
     new AddressImpl ("7700 Technology Way", "NONNULL", "Denver", "CO", "80237");
   
   /*
    * MAKE THE OBJECT PERSISTENT
    */
   manager.makePersistent(a);

   /*
    * COMMIT THE OBJECT TO STORAGE
    */
     // commit the transaction, all changes made between
     // the begin and the commit are set to the db
   t.commit();
   /*
    * RETRIEVING ALL ADDRESSES
    */
   System.out.println("RETRIEVING ADDRESSES...");
   Extent ext = manager.getExtent(AddressImpl.class, false);
   System.out.println("A new OjbExtent instance created...");
   String filter = "addressLine1==line1";
   Query query = manager.newQuery(ext, filter);
   System.out.println("A new query created with extent and filter...");
   String parameter = "String line1";
   query.declareParameters (parameter);

   System.out.println("Parameter declared...");
   Collection c = (Collection) query.execute("7700 Technology Way");
   System.out.println("Query executed with parameter and cast to Collection...");
   Iterator i = c.iterator();
   while (i.hasNext()) 
   {
    AddressImpl addr = (AddressImpl) i.next();
    System.out.println (
     "Address : " 
     + addr.getAddressLine1()
     + ", "
     + addr.getAddressLine2()
     + ", "
     + addr.getCity()
     + ", "
     + addr.getState()
     + ", "
     + addr.getZip() );    
   }

   /*
    * CLEANUP AND EXIT
    */
   manager.close();   
  }
  catch (Exception e)
  {
   e.printStackTrace();
  }
  
 }
}

 

/**
  *  AdrressImpl.java
*/

package org.apache.ojb.tshi;

public class AddressImpl {
 public String addressLine1;
 public String addressLine2;
 public String city;
 public String state;
 public String zip; 

 public AddressImpl()
 { addressLine1 = "stillnull";
  addressLine2 = "stillnull";
  city = "stillnull";
  state = "stillnull";
  zip = "stillnull";
 }

 public AddressImpl (String addr1, String addr2, String city, String state, String 
zip) {
  addressLine1=addr1;
  addressLine2=addr2;
  this.city=city;
  this.state=state;
  this.zip=zip;
 }
 
 public String getAddressLine1() {
  return addressLine1;
 }

 public void setAddressLine1(String addressLine1) {
  this.addressLine1=addressLine1;
 }

 public String getAddressLine2() {
  return addressLine2;
 }

 public void setAddressLine2(String addressLine2) {
  this.addressLine2=addressLine2;
 }

 public String getCity() {
  return city;
 }

 public void setCity (String city) {
  this.city=city;
 }

 public String getState() {
  return state;
 }
 
 public void setState(String state) {
  this.state=state;
 }

 public String getZip() {
  return zip;
 }

 public void setZip(String zip) {
  this.zip=zip;
 }
}

 

Thinks in advance.

tshitshi




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