EJB 3.0 JPA Entities and preserving user identities

Hello all,
I've been reading about some of the techniques available to Oracle DB developers to ensure that some sense of a user's real identity is maintained in multitier applications (<http://download-uk.oracle.com/docs/cd/B19306_01/network.102/b14266/apdvprxy.htm>).
I was wondering if either of the methods described (proxy authentication or the use of the CLIENT_IDENTIFIER attribute) could be used in conjunction with EJB 3.0 JPA Entity beans (in an OC4J container).
If so, I would really appreciate any pointers to useful documentation! I've read something about the use of proxy authentication with TopLink (<http://www.oracle.com/technology/products/ias/toplink/doc/11110/relnotes/toplink-relnotes.html#BABHEFEF>), but I'm not sure how this relates to the use of Entity beans.
Many thanks,
Alistair.

Just to close this thread out...
Under another thread: <JPA Entities with Proxy Authentication / OC4J bug it was determined that this is NOT possible with OC4J 10g, but should be supported by 11g.
Alistair.

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Hi
I have 10.3.9 Server and a few 10.3.9 and 10.4.9 clients with iMacs, eMacs, Macbooks etc. I would like to install (not boot) from the server but I cant find much info about it except the Help which doesnt cover my question which is:
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Thanks Camelot
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Edited by: new_to_webcenter on 21-Jan-2011 03:20

@Shay,
In a new JPA app, I've created
New Business Tier > EJB > Entity
Choose Persistence Unit and OFfline DB , Choose No Inheritance
Ticked on "Create Offline Table"
Include @Id field without a Sequencer
In the generated Entity class, I've added a new private field Name with setter/getter.
I've added these via the Structure > EJB > Add new field > generate accessors.
I've also specified @Column for the private field Name .
Next in the offline DB source, I right-click the Table > Generate to Connection > and go through the steps , choosing CREATE table.
In the created table as well as the generated SQL script, the Name column does not appear.
It creates a table in the DB with only the ID column.
Edit: I've checked again - if i click on the offline db source > table > columns - even there it only shows ID and no NAME column.
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In persistence.xml I've specified
<property name="eclipselink.target-server" value="WebLogic_10"/>
<property name="eclipselink.ddl-generation.output-mode"
value="database" />
@dvohra16 : Nope I dont need the sequencer at present.
Edited by: new_to_webcenter on 21-Jan-2011 22:37
Edited by: new_to_webcenter on 21-Jan-2011 22:58

How to create a cache for JPA Entities using an EJB

Hello everybody! I have recently got started with JPA 2.0 (I use eclipseLink) and EJB 3.1 and have a problem to figure out how to best implement a cache for my JPA Entities using an EJB.
In the following I try to describe my problem.. I know it is a bit verbose, but hope somebody will help me.. (I highlighted in bold the core of my problem, in case you want to first decide if you can/want help and in the case spend another couple of minutes to understand the domain)
I have the following JPA Entities:
@Entity Genre{
private String name;
@OneToMany(mappedBy = "genre", cascade={CascadeType.MERGE, CascadeType.PERSIST})
private Collection<Novel> novels;
@Entity
class Novel{
@ManyToOne(cascade={CascadeType.MERGE, CascadeType.PERSIST})
private Genre genre;
private String titleUnique;
@OneToMany(mappedBy="novel", cascade={CascadeType.MERGE, CascadeType.PERSIST})
private Collection<NovelEdition> editions;
@Entity
class NovelEdition{
private String publisherNameUnique;
private String year;
@ManyToOne(optional=false, cascade={CascadeType.PERSIST, CascadeType.MERGE})
private Novel novel;
@ManyToOne(optional=false, cascade={CascadeType.MERGE, CascadeType.PERSIST})
private Catalog appearsInCatalog;
@Entity
class Catalog{
private String name;
@OneToMany(mappedBy = "appearsInCatalog", cascade = {CascadeType.MERGE, CascadeType.PERSIST})
private Collection<NovelEdition> novelsInCatalog;
The idea is to have several Novels, belonging each to a specific Genre, for which can exist more than an edition (different publisher, year, etc). For semplicity a NovelEdition can belong to just one Catalog, being such a Catalog represented by such a text file:
FILE 1:
Catalog: Name Of Catalog 1
"Title of Novel 1", "Genre1 name","Publisher1 Name", 2009
"Title of Novel 2", "Genre1 name","Pulisher2 Name", 2010
FILE 2:
Catalog: Name Of Catalog 2
"Title of Novel 1", "Genre1 name","Publisher2 Name", 2011
"Title of Novel 2", "Genre1 name","Pulisher1 Name", 2011
Each entity has associated a Stateless EJB that acts as a DAO, using a Transaction Scoped EntityManager. For example:
@Stateless
public class NovelDAO extends AbstractDAO<Novel> {
@PersistenceContext(unitName = "XXX")
private EntityManager em;
protected EntityManager getEntityManager() {
return em;
public NovelDAO() {
super(Novel.class);
//NovelDAO Specific methods
I am interested at when the catalog files are parsed and the corresponding entities are built (I usually read a whole batch of Catalogs at a time).
Being the parsing a String-driven procedure, I don't want to repeat actions like novelDAO.getByName("Title of Novel 1") so I would like to use a centralized cache for mappings of type String-Identifier->Entity object.
Currently I use +3 Objects+:
1) The file parser, which does something like:
final CatalogBuilder catalogBuilder = //JNDI Lookup
//for each file:
String catalogName = parseCatalogName(file);
catalogBuilder.setCatalogName(catalogName);
//For each novel edition
String title= parseNovelTitle();
String genre= parseGenre();
catalogBuilder.addNovelEdition(title, genre, publisher, year);
//End foreach
catalogBuilder.build();
2) The CatalogBuilder is a Stateful EJB which uses the Cache and gets re-initialized every time a new Catalog file is parsed and gets "removed" after a catalog is persisted.
@Stateful
public class CatalogBuilder {
@PersistenceContext(unitName = "XXX", type = PersistenceContextType.EXTENDED)
private EntityManager em;
@EJB
private Cache cache;
private Catalog catalog;
@PostConstruct
public void initialize() {
catalog = new Catalog();
catalog.setNovelsInCatalog(new ArrayList<NovelEdition>());
public void addNovelEdition(String title, String genreStr, String publisher, String year){
Genre genre = cache.findGenreCreateIfAbsent(genreStr);//##
Novel novel = cache.findNovelCreateIfAbsent(title, genre);//##
NovelEdition novEd = new NovelEdition();
novEd.setNovel(novel);
//novEd.set publisher year catalog
catalog.getNovelsInCatalog().add();
public void setCatalogName(String name) {
catalog.setName(name);
@Remove
public void build(){
em.merge(catalog);
3) Finally, the problematic bean: Cache. For CatalogBuilder I used an EXTENDED persistence context (which I need as the Parser executes several succesive transactions) together with a Stateful EJB; but in this case I am not really sure what I need. In fact, the cache:
Should stay in memory until the parser is finished with its job, but not longer (should not be a singleton) as the parsing is just a very particular activity which happens rarely.
Should keep all of the entities in context, and should return managed entities form mehtods marked with ##, otherwise the attempt to persist the catalog should fail (duplicated INSERTs)..
Should use the same persistence context as the CatalogBuilder.
What I have now is :
@Stateful
public class Cache {
@PersistenceContext(unitName = "XXX", type = PersistenceContextType.EXTENDED)
private EntityManager em;
@EJB
private sessionbean.GenreDAO genreDAO;
//DAOs for other cached entities
Map<String, Genre> genreName2Object=new TreeMap<String, Genre>();
@PostConstruct
public void initialize(){
for (Genre g: genreDAO.findAll()) {
genreName2Object.put(g.getName(), em.merge(g));
public Genre findGenreCreateIfAbsent(String genreName){
if (genreName2Object.containsKey(genreName){
return genreName2Object.get(genreName);
Genre g = new Genre();
g.setName();
g.setNovels(new ArrayList<Novel>());
genreDAO.persist(t);
genreName2Object.put(t.getIdentifier(), em.merge(t));
return t;
But honestly I couldn't find a solution which satisfies these 3 points at the same time. For example, using another stateful bean with an extended persistence context (PC) would work for the 1st parsed file, but I have no idea what should happen from the 2nd file on.. Indeed, for the 1st file the PC will be created and propagated from CatalogBuilder to Cache, which will then use the same PC. But after build() returns, the PC of CatalogBuilder should (I guess) be removed and re-created during the succesive parsing, although the PC of Cache should stay "alive": shouldn't in this case an exception being thrown? Another problem is what to do when the Cache bean is passivated. Currently I get the exception:
"passivateEJB(), Exception caught ->
java.io.IOException: java.io.IOException
at com.sun.ejb.base.io.IOUtils.serializeObject(IOUtils.java:101)
at com.sun.ejb.containers.util.cache.LruSessionCache.saveStateToStore(LruSessionCache.java:501)"
Hence, I have no Idea how to implement my cache.. Can you please tell me how would you solve the problem?
Many thanks!
Bye

Hi Chris,
thanks for your reply!
I've tried to add the following into persistence.xml (although I've read that eclipseLink uses L2 cache by default..):
<shared-cache-mode>ALL</shared-cache-mode>
Then I replaced the Cache bean with a stateless bean which has methods like
Genre findGenreCreateIfAbsent(String genreName){
Genre genre = genreDAO.findByName(genreName);
if (genre!=null){
return genre;
genre = //Build new genre object
genreDAO.persist(genre);
return genre;
As far as I undestood, the shared cache should automatically store the genre and avoid querying the DB multiple times for the same genre, but unfortunately this is not the case: if I use a FINE logging level, I see really a lot of SELECT queries, which I didn't see with my "home made" Cache...
I am really confused.. :(
Thanks again for helping + bye

How to do a Clean Install (Don't preserve users and network settings)

I'd like to make a clean install of Snow Leopard -- but NOT erasing the whole drive and NOT migrating/preserving my users and network settings.
I have a bunch of applications and huge data sets (about 40G) on the boot drive that I don't want to go through the trouble of reinstalling or backing up, and that do not install Application Support folders and the like. I'd like to keep them, as well as migrate files like fonts and preferences over manually. Thus I don't want to format in disk utility and install.
I seem to remember there was the option in Tiger (Leopard maybe?) to Archive and Install Without Preserving anything, such as network settings, users, extensions and preferences. It would leave a completely fresh System, and a Previous System where I could manually migrate over everything I wanted to keep.
Is this possible in Snow Leopard?
Thanks.

Let me clarify.
Snow Leopard does an Archive and Install, BUT it PRESERVES Users and Settings. The default install "upgrades in place".
I have been having all sorts of weird crashes and hangs on my Leopard install and i want a fresh, not upgraded install.
I WANT to keep my old Leopard system so I can manually transfer over fonts, files, and applications.
I WANT an upgrade that DOES NOT preserve Preferences, Application Settings, extensions, etc. etc. etc.
But, I do NOT want to have to completely format and install, because that would involve burning approximately 60G of files and applications to DVD-Rs and copying them back.
Thanks.
Message was edited by: J Law

New to the Apple and I want to set up a user account that will not delete the guest users files and allow and preserve their personal settings after log out. Is this possible?

New to the Apple and I want to set up a user account that will not delete the guest users files and allow and preserve their personal settings after log out. Is this possible?

The built-in guest user account will not do this. Simply create a new standard account and call it "Guest" or "Guest Users" or whatever you like.
Go to System Preferences > Users& Groups, click "+" to make a new account.

Unable to check "Preserve Users and Network Settings" checkbox

I may need to Archive and Install but I'm unable to select the "Preserve Users and Network Settings" checkbox when selecting Archive and Install. It's simply greyed out.
Any ideas?

Alan,
Try repairing disk and repairing permissions first. Then try the Archive and Install option again.
If that doesn't work you can always use a firewire drive and with carbon copy cloner, clone the drive. Then do a clean install and with the migration wizard import the users and network settings back. If you don't have firewire drive you can just do the Archive and Install without checking the "Preserver Users.." option. Your old users will still be in the "/Previous System/Users" folder.
Message was edited by: b3av1s

Cannot select Preserve Users and Network Settings

I am trying to do an Archive and Install but want to save my user settings but I cannot select "Preserve Users and Network Settings" as it is grayed out and unelectable. The question is, why?

Have a read of this.
http://discussions.apple.com/thread.jspa?threadID=1858697&tstart=1

Not given option to preserve users and network settings

I have a Quicksilver with Leopard installed. I've learned that normally you can't install Leopard on this computer because the processor (733 mhz) is too slow. It works, but I've found that it does indeed run poorly.(The hard drive was transferred from another computer, with Leopard already installed.)
So now I want to install Tiger on it, but when I get to the options installation window and click on the 'Archive and Install' button, the option to also 'preserve users and network settings' remains grayed out. I can't select it. Why so? I want to preserve the settings when I install Tiger.

zanzen wrote:
I have a Quicksilver with Leopard installed. I've learned that normally you can't install Leopard on this computer because the processor (733 mhz) is too slow. It works, but I've found that it does indeed run poorly.(The hard drive was transferred from another computer, with Leopard already installed.)
So now I want to install Tiger on it, but when I get to the options installation window and click on the 'Archive and Install' button, the option to also 'preserve users and network settings' remains grayed out. I can't select it. Why so?
because tiger installer doesn't know how to deal with leopard files as leopard was released after Tiger. downgraded like this is not recommended by apple.
I want to preserve the settings when I install Tiger.
you can't. however, if you do an archive and install without preserving user settings, your leopard home directory will be preserved in the Previous Systems folder at the top level of the hard drive. after you are done with the install of Tiger you can move what you need to your new home directory. move data files ONLY. don't move any preference files. they most likely won't work.
A better option would be to back up your data to an external and do an erase and install of tiger. you should make a backup anyway in case something goes wrong with the install.

Preserve Users and Network Settings

If I do an Archive & Install of my OS with this option off, will it keep my Users folder, or also erase it?
And would it do anything to it if I put the contents of my home folder in a new directory somewhere not in the Users folder?
Because I'd like to reset the network settings, but I'd like to keep my documents. Apple KBase tells that when this option is off, a backup is needed of your Users reason, but I don't see why if the documents are kept. Otherwise, I don't get why it's named "Archive" and Install, as nothing would be archived.

It won't erase it, but it will move it to the Previous System Folder, and because there are various permissions on all the thousands of files in your Users folder, it will be difficult to reset them all correctly. You're better off leaving the option on to Preserver Users and Network Settings.
Mulder

Preserve Users and Network Settings is grayed out

Hi, I was having some issues with my Mac so I decided to perform an archive and install. I currently have Snow Leopard 10.6.4. I popped in the disk but when I got to choosing install options, "Preserve Users and Network Settings" is grayed out. I want to keep all my data as it was and just reinstall Snow Leopard. Does this option appear later on in the installation? Is there a way to go back? It's currently installing Snow Leopard. Please help

Your Home folder may be in the Previous System Folder. Check to see if it's there and intact. Otherwise it's been moved into the new system. You need to make a backup of your Home folder on an external drive.
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EJB 3.0 JPA: java.lang.NullPointerException at JdbcOdbcDriver.initialize()

Hello every body,
I'm trying to implement EJB 3.0 JPA .
The entities Users ,and Products are created ,
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package com.prapansol.demos;
import java.util.List;
import javax.ejb.EJB;
import com.xyz.demos.ejb30.Users;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import javax.persistence.PersistenceContext;
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private EntityManager manager;
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EntityManager em=emf.createEntityManager();
this.setEntityManager(em);
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}catch(Exception e){
System.out.println(e.getClass().getName());
System.out.println(e.getMessage());
e.printStackTrace();
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getEntityManager().close();
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this.manager = manager;
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public static void main(String[] args) {
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<?xml version="1.0" encoding="UTF-8" ?>
<persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
version="1.0" xmlns="http://java.sun.com/xml/ns/persistence">
<persistence-unit name="EJB">
<provider>oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider</provider>
<class>com.xyz.demos.ejb30.Users</class>
<class>com.xyz.demos.ejb30.Products</class>
<class>com.xyz..demos.ejb30.ServiceRequests</class>
<class>com.xyz.demos.ejb30.ServiceHistories</class>
<class>com.xyz.demos.ejb30.ExpertiseAreas</class>
<properties>
<property name="jdbc.driver" value="oracle.jdbc.driver.OracleDriver"/>
<property name="jdbc.connection.string" value="jdbc:oracle:thin:@localhost:1521:ORCL"/>
<property name="jdbc.user" value="scott"/>
<property name="jdbc.password" value="tiger"/>
<property name="toplink.logging.level" value="INFO"/>
</properties>
</persistence-unit>
</persistence>
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[TopLink Finest]: 2007.03.23 01:36:15.095--ServerSession(32012057)--Thread(Thread[main,5,main])--property=toplink.weaving; value=true
[TopLink Config]: 2007.03.23 01:36:15.323--ServerSession(32012057)--Thread(Thread[main,5,main])--The alias name for the entity class [class com.prapansol.demos.technology.Users] is being defaulted to: Users.
[TopLink Config]: 2007.03.23 01:36:15.335--ServerSession(32012057)--Thread(Thread[main,5,main])--The table name for entity [class com.prapansol.demos.technology.Users] is being defaulted to: USERS.
[TopLink Config]: 2007.03.23 01:36:15.360--ServerSession(32012057)--Thread(Thread[main,5,main])--The column name for element [private java.lang.String com.prapansol.demos.technology.Users.city] is being defaulted to: CITY.
[TopLink Config]: 2007.03.23 01:36:15.377--ServerSession(32012057)--Thread(Thread[main,5,main])--The column name for element [private java.lang.String com.prapansol.demos.technology.Users.email] is being defaulted to: EMAIL.
[TopLink Config]: 2007.03.23 01:36:15.431--ServerSession(32012057)--Thread(Thread[main,5,main])--The alias name for the entity class [class com.prapansol.demos.technology.ServiceHistories] is being defaulted to: ServiceHistories.
[TopLink Config]: 2007.03.23 01:36:15.435--ServerSession(32012057)--Thread(Thread[main,5,main])--The column name for element [private java.lang.String com.prapansol.demos.technology.ServiceHistories.notes] is being defaulted to: NOTES.
[TopLink Config]: 2007.03.23 01:36:15.456--ServerSession(32012057)--Thread(Thread[main,5,main])--The alias name for the entity class [class com.prapansol.demos.technology.ServiceRequests] is being defaulted to: ServiceRequests.
[TopLink Config]: 2007.03.23 01:36:15.460--ServerSession(32012057)--Thread(Thread[main,5,main])--The column name for element [private java.lang.String com.prapansol.demos.technology.ServiceRequests.status] is being defaulted to: STATUS.
[TopLink Config]: 2007.03.23 01:36:15.461--ServerSession(32012057)--Thread(Thread[main,5,main])--The alias name for the entity class [class com.prapansol.demos.technology.Products] is being defaulted to: Products.
[TopLink Config]: 2007.03.23 01:36:15.464--ServerSession(32012057)--Thread(Thread[main,5,main])--The table name for entity [class com.prapansol.demos.technology.Products] is being defaulted to: PRODUCTS.
[TopLink Config]: 2007.03.23 01:36:15.466--ServerSession(32012057)--Thread(Thread[main,5,main])--The column name for element [private java.lang.String com.prapansol.demos.technology.Products.description] is being defaulted to: DESCRIPTION.
[TopLink Config]: 2007.03.23 01:36:15.466--ServerSession(32012057)--Thread(Thread[main,5,main])--The column name for element [private java.lang.String com.prapansol.demos.technology.Products.image] is being defaulted to: IMAGE.
[TopLink Config]: 2007.03.23 01:36:15.467--ServerSession(32012057)--Thread(Thread[main,5,main])--The column name for element [private java.lang.String com.prapansol.demos.technology.Products.name] is being defaulted to: NAME.
[TopLink Config]: 2007.03.23 01:36:15.468--ServerSession(32012057)--Thread(Thread[main,5,main])--The alias name for the entity class [class com.prapansol.demos.technology.ExpertiseAreas] is being defaulted to: ExpertiseAreas.
[TopLink Config]: 2007.03.23 01:36:15.470--ServerSession(32012057)--Thread(Thread[main,5,main])--The column name for element [private java.lang.String com.prapansol.demos.technology.ExpertiseAreas.notes] is being defaulted to: NOTES.
[TopLink Config]: 2007.03.23 01:36:15.574--ServerSession(32012057)--Thread(Thread[main,5,main])--The target entity (reference) class for the one to many mapping element [private java.util.List com.prapansol.demos.technology.ServiceRequests.serviceHistoriesList] is being defaulted to: class com.prapansol.demos.technology.ServiceHistories.
[TopLink Config]: 2007.03.23 01:36:15.579--ServerSession(32012057)--Thread(Thread[main,5,main])--The target entity (reference) class for the many to one mapping element [private com.prapansol.demos.technology.ServiceRequests com.prapansol.demos.technology.ServiceHistories.serviceRequests] is being defaulted to: class com.prapansol.demos.technology.ServiceRequests.
[TopLink Config]: 2007.03.23 01:36:15.592--ServerSession(32012057)--Thread(Thread[main,5,main])--The target entity (reference) class for the one to many mapping element [private java.util.List com.prapansol.demos.technology.Users.serviceHistoriesList] is being defaulted to: class com.prapansol.demos.technology.ServiceHistories.
[TopLink Config]: 2007.03.23 01:36:15.593--ServerSession(32012057)--Thread(Thread[main,5,main])--The target entity (reference) class for the many to one mapping element [private com.prapansol.demos.technology.Users com.prapansol.demos.technology.ServiceHistories.users] is being defaulted to: class com.prapansol.demos.technology.Users.
[TopLink Config]: 2007.03.23 01:36:15.593--ServerSession(32012057)--Thread(Thread[main,5,main])--The target entity (reference) class for the one to many mapping element [private java.util.List com.prapansol.demos.technology.Users.expertiseAreasList] is being defaulted to: class com.prapansol.demos.technology.ExpertiseAreas.
[TopLink Config]: 2007.03.23 01:36:15.594--ServerSession(32012057)--Thread(Thread[main,5,main])--The target entity (reference) class for the many to one mapping element [private com.prapansol.demos.technology.Users com.prapansol.demos.technology.ExpertiseAreas.users] is being defaulted to: class com.prapansol.demos.technology.Users.
[TopLink Config]: 2007.03.23 01:36:15.594--ServerSession(32012057)--Thread(Thread[main,5,main])--The target entity (reference) class for the many to one mapping element [private com.prapansol.demos.technology.Products com.prapansol.demos.technology.ExpertiseAreas.products] is being defaulted to: class com.prapansol.demos.technology.Products.
[TopLink Config]: 2007.03.23 01:36:15.595--ServerSession(32012057)--Thread(Thread[main,5,main])--The target entity (reference) class for the one to many mapping element [private java.util.List com.prapansol.demos.technology.Products.expertiseAreasList] is being defaulted to: class com.prapansol.demos.technology.ExpertiseAreas.
[TopLink Finer]: 2007.03.23 01:36:15.600--ServerSession(32012057)--Thread(Thread[main,5,main])--Weaver processing class [com.prapansol.demos.technology.Users].
[TopLink Finer]: 2007.03.23 01:36:15.601--ServerSession(32012057)--Thread(Thread[main,5,main])--Weaver processing class [com.prapansol.demos.technology.ServiceHistories].
[TopLink Finer]: 2007.03.23 01:36:15.601--ServerSession(32012057)--Thread(Thread[main,5,main])--Weaver processing class [com.prapansol.demos.technology.ServiceRequests].
[TopLink Finer]: 2007.03.23 01:36:15.601--ServerSession(32012057)--Thread(Thread[main,5,main])--Weaver processing class [com.prapansol.demos.technology.ExpertiseAreas].
[TopLink Finer]: 2007.03.23 01:36:15.602--ServerSession(32012057)--Thread(Thread[main,5,main])--Weaver processing class [com.prapansol.demos.technology.Products].
[TopLink Finer]: 2007.03.23 01:36:15.604--Thread(Thread[main,5,main])--cmp_init_globalInstrumentation_is_null
[TopLink Finest]: 2007.03.23 01:36:15.613--ServerSession(32012057)--Thread(Thread[main,5,main])--begin deploying Persistence Unit EJB; state Predeployed; deploymentCount 0
[TopLink Finest]: 2007.03.23 01:36:15.633--ServerSession(32012057)--Thread(Thread[main,5,main])--property=toplink.logging.level; value=FINEST; translated value=FINEST
[TopLink Finest]: 2007.03.23 01:36:15.634--ServerSession(32012057)--Thread(Thread[main,5,main])--property=toplink.logging.level; value=FINEST; translated value=FINEST
[TopLink Info]: 2007.03.23 01:36:15.639--ServerSession(32012057)--Thread(Thread[main,5,main])--TopLink, version: Oracle TopLink Essentials - 2006.8 (Build 060829)
[TopLink Finest]: 2007.03.23 01:36:15.646--ServerSession(32012057)--Thread(Thread[main,5,main])--end deploying
Persistence Unit EJB; state Undeployed; deploymentCount 0
Here is the Stack Trace:
Exception in thread "main" java.lang.NullPointerException
     at sun.jdbc.odbc.JdbcOdbcDriver.initialize(JdbcOdbcDriver.java:436)
     at sun.jdbc.odbc.JdbcOdbcDriver.connect(JdbcOdbcDriver.java:153)
     at java.sql.DriverManager.getConnection(DriverManager.java:525)
     at java.sql.DriverManager.getConnection(DriverManager.java:140)
     at oracle.toplink.essentials.sessions.DefaultConnector.connect(DefaultConnector.java:85)
     at oracle.toplink.essentials.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:170)
     at oracle.toplink.essentials.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:537)
     at oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:180)
     at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:230)
     at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:84)
     at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:127)
     at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:121)
     at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:76)
     at com.prapansol.demos.Client.<init>(Client.java:29)
     at com.prapansol.demos.Client.main(Client.java:83)
where am I doing wrong?
Why does sun.jdbc.odbc.JdbcOdbcDriver.initialize method get called when I'm using Oracle DataBase?
Am I missing any thing ?
I'll be thankful if any one help me find my fault?
Thanking you in Advance,
Regards,
Samba

Check the property names for configuring TopLink's internal connection pool. All of the JDBC property names should be prefixed with toplink.
Refer to the TopLink JPA extensions guide for more information.
http://www.oracle.com/technology/products/ias/toplink/jpa/resources/toplink-jpa-extensions.html
Doug

Error received on creating jpa entities

Hello,
I am using jdeveloper 11.1.1.7 and am working with a simple test of creating a row in a table. I have created the Jpa entities as described on
Oracle JDeveloper 11g Release 2 Tutorials - Building a JPA Application and
EJB 3.0 component exposed as webservice using Oracle JDeveloper: Create simple EJB component, exposed it as a webservice…
which deals more with creating an actual row in the table.
I run it and I get a huge list of depreciated methods and an error. It does load the data, which is great, but I cannot use this in production with all the errors produced!
This is pretty bad considering most of the code was generated using the wizards....
Any ideas?
C:\Oracle11117\Middleware\jdk160_24\bin\javaw.exe -client -classpath C:\JDeveloper\mywork\XML\.adf;C:\JDeveloper\mywork\XML\Jpa_EntitiesAgain\classes;C:\Oracle11117\Middleware\modules\com.oracle.toplink_1.0.0.0_11-1-1-5-0.jar;C:\Oracle11117\Middleware\modules\org.eclipse.persistence_1.1.0.0_2-1.jar;C:\Oracle11117\Middleware\modules\com.bea.core.antlr.runtime_2.7.7.jar;C:\Oracle11117\Middleware\modules\javax.persistence_1.0.0.0_2-0-0.jar;C:\Oracle11117\Middleware\oracle_common\modules\oracle.xdk_11.1.0\xmlparserv2.jar;C:\Oracle11117\Middleware\oracle_common\modules\oracle.xdk_11.1.0\xml.jar;C:\Oracle11117\Middleware\modules\javax.jsf_1.1.0.0_1-2.jar;C:\Oracle11117\Middleware\modules\javax.ejb_3.0.1.jar;C:\Oracle11117\Middleware\modules\javax.enterprise.deploy_1.2.jar;C:\Oracle11117\Middleware\modules\javax.interceptor_1.0.jar;C:\Oracle11117\Middleware\modules\javax.jms_1.1.1.jar;C:\Oracle11117\Middleware\modules\javax.jsp_1.2.0.0_2-1.jar;C:\Oracle11117\Middleware\modules\javax.jws_2.0.jar;C:\Oracle11117\Middleware\modules\javax.activation_1.1.0.0_1-1.jar;C:\Oracle11117\Middleware\modules\javax.mail_1.1.0.0_1-4-1.jar;C:\Oracle11117\Middleware\modules\javax.xml.soap_1.3.1.0.jar;C:\Oracle11117\Middleware\modules\javax.xml.rpc_1.2.1.jar;C:\Oracle11117\Middleware\modules\javax.xml.ws_2.1.1.jar;C:\Oracle11117\Middleware\modules\javax.management.j2ee_1.0.jar;C:\Oracle11117\Middleware\modules\javax.resource_1.5.1.jar;C:\Oracle11117\Middleware\modules\javax.servlet_1.0.0.0_2-5.jar;C:\Oracle11117\Middleware\modules\javax.transaction_1.0.0.0_1-1.jar;C:\Oracle11117\Middleware\modules\javax.xml.stream_1.1.1.0.jar;C:\Oracle11117\Middleware\modules\javax.security.jacc_1.0.0.0_1-1.jar;C:\Oracle11117\Middleware\modules\javax.xml.registry_1.0.0.0_1-0.jar;C:\Oracle11117\Middleware\jdeveloper\ide\macros\..\..\..\oracle_common\modules\oracle.jdbc_11.1.1\ojdbc6dms.jar;C:\Oracle11117\Middleware\jdeveloper\ide\macros\..\..\..\oracle_common\modules\oracle.nlsrtl_11.1.0\orai18n.jar;C:\Oracle11117\Middleware\oracle_common\modules\oracle.odl_11.1.1\ojdl.jar;C:\Oracle11117\Middleware\oracle_common\modules\oracle.dms_11.1.1\dms.jar -Djavax.net.ssl.trustStore=C:\Oracle11117\Middleware\wlserver_10.3\server\lib\DemoTrust.jks jpa_entities.Serve.JavaServiceFacade
[EL Info]: 2013-10-07 15:35:17.703--ServerSession(13419912)--Thread(Thread[main,5,main])--property eclipselink.jdbc.user is deprecated, property javax.persistence.jdbc.user should be used instead.
[EL Info]: 2013-10-07 15:35:17.703--ServerSession(13419912)--Thread(Thread[main,5,main])--property eclipselink.jdbc.driver is deprecated, property javax.persistence.jdbc.driver should be used instead.
[EL Info]: 2013-10-07 15:35:17.703--ServerSession(13419912)--Thread(Thread[main,5,main])--property eclipselink.jdbc.url is deprecated, property javax.persistence.jdbc.url should be used instead.
[EL Info]: 2013-10-07 15:35:17.703--ServerSession(13419912)--Thread(Thread[main,5,main])--property eclipselink.jdbc.password is deprecated, property javax.persistence.jdbc.password should be used instead.
[EL Finer]: 2013-10-07 15:35:17.718--ServerSession(13419912)--Thread(Thread[main,5,main])--Searching for default mapping file in file:/C:/JDeveloper/mywork/XML/Jpa_EntitiesAgain/classes/
[EL Finer]: 2013-10-07 15:35:17.734--ServerSession(13419912)--Thread(Thread[main,5,main])--Searching for default mapping file in file:/C:/JDeveloper/mywork/XML/Jpa_EntitiesAgain/classes/
[EL Config]: 2013-10-07 15:35:17.812--ServerSession(13419912)--Thread(Thread[main,5,main])--The access type for the persistent class [class jpa_entities.JpaTest] is set to [FIELD].
[EL Config]: 2013-10-07 15:35:17.828--ServerSession(13419912)--Thread(Thread[main,5,main])--The alias name for the entity class [class jpa_entities.JpaTest] is being defaulted to: JpaTest.
[EL Config]: 2013-10-07 15:35:17.843--ServerSession(13419912)--Thread(Thread[main,5,main])--The column name for element [field test1] is being defaulted to: TEST1.
[EL Config]: 2013-10-07 15:35:17.843--ServerSession(13419912)--Thread(Thread[main,5,main])--The column name for element [field test2] is being defaulted to: TEST2.
[EL Finer]: 2013-10-07 15:35:17.843--Thread(Thread[main,5,main])--JavaSECMPInitializer - transformer is null.
[EL Info]: 2013-10-07 15:35:17.843--ServerSession(13419912)--Thread(Thread[main,5,main])--property eclipselink.jdbc.user is deprecated, property javax.persistence.jdbc.user should be used instead.
[EL Info]: 2013-10-07 15:35:17.843--ServerSession(13419912)--Thread(Thread[main,5,main])--property eclipselink.jdbc.driver is deprecated, property javax.persistence.jdbc.driver should be used instead.
[EL Info]: 2013-10-07 15:35:17.843--ServerSession(13419912)--Thread(Thread[main,5,main])--property eclipselink.jdbc.url is deprecated, property javax.persistence.jdbc.url should be used instead.
[EL Info]: 2013-10-07 15:35:17.843--ServerSession(13419912)--Thread(Thread[main,5,main])--property eclipselink.jdbc.password is deprecated, property javax.persistence.jdbc.password should be used instead.
[EL Finer]: 2013-10-07 15:35:17.859--ServerSession(13419912)--Thread(Thread[main,5,main])--Could not initialize Validation Factory. Encountered following exception: java.lang.NoClassDefFoundError: javax/validation/Validation
[EL Info]: 2013-10-07 15:35:18.25--ServerSession(13419912)--Thread(Thread[main,5,main])--EclipseLink, version: Eclipse Persistence Services - 2.1.3.v20110304-r9073
[EL Warning]: 2013-10-07 15:35:18.25--Thread(Thread[main,5,main])--java.lang.ClassNotFoundException: weblogic.version
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:305)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:246)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.eclipse.persistence.internal.security.PrivilegedAccessHelper.getClassForName(PrivilegedAccessHelper.java:81)
at org.eclipse.persistence.platform.server.wls.WebLogicPlatform.initializeServerNameAndVersion(WebLogicPlatform.java:85)
at org.eclipse.persistence.platform.server.ServerPlatformBase.getServerNameAndVersion(ServerPlatformBase.java:181)
at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.preConnectDatasource(DatabaseSessionImpl.java:653)
at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:576)
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:228)
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:389)
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:164)
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:221)
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:209)
at jpa_entities.Serve.JavaServiceFacade.getEntityManager(JavaServiceFacade.java:37)
at jpa_entities.Serve.JavaServiceFacade._persistEntity(JavaServiceFacade.java:53)
at jpa_entities.Serve.JavaServiceFacade.persistJpaTest(JavaServiceFacade.java:75)
at jpa_entities.Serve.JavaServiceFacade.main(JavaServiceFacade.java:32)
[EL Fine]: 2013-10-07 15:35:18.812--Thread(Thread[main,5,main])--Detected Vendor platform: org.eclipse.persistence.platform.database.oracle.Oracle10Platform
[EL Config]: 2013-10-07 15:35:18.828--ServerSession(13419912)--Connection(21411547)--Thread(Thread[main,5,main])--connecting(DatabaseLogin(
platform=>Oracle10Platform
user name=> "stuartf"
datasource URL=> "jdbc:oracle:thin:@lpgtr82:1521:test11g"
[EL Config]: 2013-10-07 15:35:18.859--ServerSession(13419912)--Connection(15399793)--Thread(Thread[main,5,main])--Connected: jdbc:oracle:thin:@lpgtr82:1521:test11g
User: STUARTF
Database: Oracle Version: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Driver: Oracle JDBC driver Version: 11.2.0.3.0
[EL Info]: 2013-10-07 15:35:19.078--ServerSession(13419912)--Thread(Thread[main,5,main])--file:/C:/JDeveloper/mywork/XML/Jpa_EntitiesAgain/classes/_Jpa_EntitiesAgain-1 login successful
[EL Warning]: 2013-10-07 15:35:19.078--ServerSession(13419912)--Thread(Thread[main,5,main])--Failed to find MBean Server: javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
[EL Warning]: 2013-10-07 15:35:19.078--ServerSession(13419912)--Thread(Thread[main,5,main])--Failed to find MBean Server: javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
[EL Warning]: 2013-10-07 15:35:19.078--ServerSession(13419912)--Thread(Thread[main,5,main])--Failed to find MBean Server: javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
[EL Finer]: 2013-10-07 15:35:19.093--ServerSession(13419912)--Thread(Thread[main,5,main])--Canonical Metamodel class [jpa_entities.JpaTest_] not found during initialization.
[EL Finer]: 2013-10-07 15:35:19.109--ServerSession(13419912)--Thread(Thread[main,5,main])--client acquired
[EL Finer]: 2013-10-07 15:35:19.109--UnitOfWork(7819553)--Thread(Thread[main,5,main])--begin unit of work commit
[EL Finer]: 2013-10-07 15:35:19.109--ClientSession(32803057)--Connection(15399793)--Thread(Thread[main,5,main])--begin transaction
[EL Fine]: 2013-10-07 15:35:19.125--ClientSession(32803057)--Connection(15399793)--Thread(Thread[main,5,main])--INSERT INTO JPA_TEST (JPA_TEST_ID, TEST1, TEST2) VALUES (?, ?, ?)
bind => [2, hello, there]
[EL Finer]: 2013-10-07 15:35:19.203--ClientSession(32803057)--Connection(15399793)--Thread(Thread[main,5,main])--commit transaction
[EL Finer]: 2013-10-07 15:35:19.218--UnitOfWork(7819553)--Thread(Thread[main,5,main])--end unit of work commit
[EL Finer]: 2013-10-07 15:35:19.218--UnitOfWork(7819553)--Thread(Thread[main,5,main])--resume unit of work
[EL Finer]: 2013-10-07 15:35:19.218--UnitOfWork(7819553)--Thread(Thread[main,5,main])--release unit of work
[EL Finer]: 2013-10-07 15:35:19.218--ClientSession(32803057)--Thread(Thread[main,5,main])--client released
Process exited with exit code 0.

The error seems caused by the persistence.xml specifying that EclipseLink should use the weblogic server platform, but you are not running your example within WLS. This causes an internal exception when it tries to load WebLogic classes which are unavailable. It is only printing off the exception at the warning level to indicate you do not have the correct settings for your test environment.
Ideally you would only want the log level set to severe or off in production, as any exceptions would be propagated up to the application anyway.
Best Regards,
Chris

JPA entities to the database generation

Hi,
I am trying to create JPA entities in an EJB diagram and then automatically get the tables created in a database schema. I started by creating some entities from the Entity wizard, then added some fields, dragged them into the diagram and added some relationships.
With that done, I noticed that the tables in the offline database created by the wizard don't get updated with the new fields of the entities (they have only the id and version fields). And I couldn't figure out how to do so.
Then, I tried to use the option 'Synchronize with database -> Generate to' option in the context menu from the EJB diagram, but its options appear disabled for me.
Please, tell me if I am doing something wrong or expecting anything that the tool is not able to do for me.
Thanks for any help.

Disabling the bind variables produces the following:
INSERT INTO BIG_NUM (ID, NUM) VALUES (2, 9999999999999999.00)The database still joyfully contains a rounded number:
SQL> select * from big_num;
ID NUM
2 10000000000000000,00So, no, it's not an issue with the bind variables. I need to examine the JDBC driver but could you tell me how I can find out what Oracle JDBC driver is used by JPA? Or... is it some other JDBC driver (not Oracle, that is)?
Best regards,
Bisser
P.S. We use the following version of TopLink Essentials:
TopLink, version: Oracle TopLink Essentials - 2.1 (Build b60-fcs (11/17/2008))
Edited by: bisser on Jan 28, 2009 9:25 AM

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