Re: ANSWER: How to use pooled connections in Orion?
Thank you Al.
I realize I haven't worded my question correctly, though. Maybe a
better way to say it is, where is Orion's JNDI environment defined?
That is, how does Orion know the location of the LDAP server on the
network, plus the binding (login) credentials required so that the
data-sources.xml example can work its auto-magic?
If I were doing this programmatically I'd create an InitialDirContext
parameterized with a Hashtable of connection parameters. Presumably
Orion does the same thing behind the scenes. Where are those connection
parameters defined to Orion?
Many thanks,
--Mark
===
Orion will bind the Datasource to the JNDI environment for you, you set
this
up in the data-sources.xml file. for instance for my Oracle instance the
file is ... defined in data-sources.xml like so
?xml version="1.0"?
!DOCTYPE data-sources PUBLIC "Orion data-sources"
"http://www.orionserver.com/dtds/data-sources.dtd"
data-sources
!--
An example/default DataSource that uses an ordinary
JDBC-driver (in this case hsql) to create the connections.
This tag creates all the needed kinds
of data-sources, transactional, pooled and EJB-aware sources.
The source generally used in application code is the "EJB"
one - it provides transactional safety and connection pooling.
--
data-source
class="com.evermind.sql.DriverManagerDataSource"
name="Oracle"
location="jdbc/RedbookDS"
xa-location="jdbc/xa/RedbookXADS"
ejb-location="jdbc/RedbookDS"
connection-driver="oracle.jdbc.driver.OracleDriver"
username=""
password=""
url="jdbc:oracle:thin:@enterprise:1521:G2K_DEV"
inactivity-timeout="30"
/
/data-sources
this will bind my DataSource to "java:comp/env/jdbc/RedbookDS"
Al
- Original Message -
From: "Mark" [EMAIL PROTECTED]
To: "Orion-Interest" [EMAIL PROTECTED]
Sent: Saturday, October 21, 2000 8:01 PM
Subject: RE: ANSWER: How to use pooled connections in Orion?
Deepak et al:
I'm confused about how Orion populates the JNDI server with the
DataSource object. Obviously for the code fragment you posted to
work,
an object "jdbc/SQLServerDS" has to exist in your directory server.
How
does it get there?
I would have guessed that admin.jar -installDataSource was the answer,
but I find no switch there which would tell Orion how to find the
directory server.
Many thanks for your posts, they're very helpful!
--Mark
===
Hi,
The way you access the datasource is dependent on where will you
access
the
datasource from. I'm currently accessing the datasource from a servlet
which
is pretty straightforward:
InitialContext ctx = new InitialContext();
DataSource ds = (DataSource)ctx.lookup("jdbc/SQLServerDS");
The above method might not be portable but it works for me so I
mention
it.
Note that you don't need any special Orion datasource name. DataSource
is
defined in javax.sql.*
The portable way which require more work is to add the following to
your
web.xml if you access the datasource from servlets and/or JSP:
context-param
param-namemyDS/param-name
param-valuejdbc/SQLServerDS/param-value
/context-param
resource-ref
descriptionA data source/description
res-ref-namemyDS/res-ref-name
res-typejavax.sql.DataSource/res-type
res-authCONTAINER/res-auth
/resource-ref
Now, you can access the datasource by:
InitialContext ctx = new InitialContext();
DataSource ds = (DataSource)ctx.lookup("java:comp/env/myDS");
--Deepak
-Original Message-
From: Luis M Bernardo [mailto:[EMAIL PROTECTED]]
Sent: Thursday, October 12, 2000 7:39 AM
To: Goel, Deepak
Subject: Re: ANSWER: How to use pooled connections in Orion?
hi. thanks for posting this message, but could you show me how you
make
the connection (a code snippet)? Looking at old postings I see some
people
using a DataSource and some others a ConnectionPoolDataSource. Also,
you
use a DriverManagerDataSource, some other people use a
ConnectionDataSource.
cheers,
luis
On Sat, 7 Oct 2000, Goel, Deepak wrote:
Hello everyone,
I've seen that many people are confused over how to setup pooled
connections
in Orion (even I was initially). Now since I figured out through
documentation and through some hit and try, I would like to share
these
instructions. Keep in mind that this is only one way of setting it
up
and
there are other ways to setup depending on capabilities of the
driver.
1. Basically, the first step is to create a non-pooled version of
your
data
source. This can be done by adding something like this to your
data-sources.xml:
data-source
class="com.evermind.sql.DriverManagerDataSource"
name="SQLServerNP"
location="jdbc/SQLServerNP"
xa-location="jdbc/xa/SQLServerXANP"
ejb-location="jdbc/SQLServerNP"
connection-driver="com.inet.tds.TdsDriver"
username="user"
password="pwd"
RE: EJB Help..
Uaually, I need to build on top of legacy code. If I had time I would build a tool to generate the 2.0 entity beans and descriptors from a database schema, but I don't have time. I have seen these tools for 1.1, so someone will be doing it. Currently, my project is to build something brand new. Jim --On Saturday, October 21, 2000 8:23 PM -0400 Cory Adams [EMAIL PROTECTED] wrote: Jim, Thanks for the reply. I have not looked over the 2.0 spec. in detail yet but I will. Are you mapping cmp entity beans to an existing db structure most of the time? Cory At 07:28 PM 10/21/00 -0400, you wrote: Hi Cory... I doubt we'll see anything thats database engine specific supported in CMP. I agree that sequences are extremely usefull and wish that there was a standard way on implementing them on database engines so that JDBC (and therefore J2EE) could take full advantage. PostgreSQL has a sequence and MS SQL Server has an identity field and so on. Unfortunatly, database vendors have no standard for implementing them. You can write code to generate a unique value for a primary key. You could code up a session bean that uses JDBC to create a new record in a table with no fields but the identity field. Of course, this bean would be database specific and it would be used by the non-database specific CMP entity beans. Orion makes a key generator available called counter.jar, which you can read about in the Orion FAQ (although I don't know what its licensing terms are - check this before you rely on it in your app). Setting aside the question of sequence types and primary key generation, I have not yet run into a RDBMS data structure I don't think I could replicate using EJB 2.0 CMP. Even if I did, I could isolate part with BMP or session beans and use CMP for the rest. I expect if I found something so strange 2.0 CMP could not handle it that I would try to redesign it so that it could be handled. I would probably end up with a better and simpler design. With EJB 2.0 CMP, I have a very good chance of getting my J2EE app to run on whatever database on whatever compliant server on whatever operating system. And, all the work it does for me is nice as well. Also, with EJB 2.0, its entirely possible to create a tool that would let you draw a UML diagram and generate almost the entire back end of an app - deployment descripters, code, maybe everything but the QL- automatically and then make changes a snap. There is no such tool now, but give some time. The best source of how to do CMP, unfortunatly, is still the spec. Anyhow, I thought EJB 1.1 was of limited utility. I think 2.0 is much, much better and can probably handle most systems. Just my opinion. Jim --On Saturday, October 21, 2000 3:11 AM -0400 Cory Adams [EMAIL PROTECTED] wrote: Jim, How could a CMP managed entity bean handle a create for say an Oracle database table that used db specific sql for describing the key using a sequence? Where the sql itself might look like insert into customer (id, name, address) values(cust_sequence.NEXTVAL, "Jim" "12 Willow Street"); Maybe this is trivial. Better yet could I ask you to provide some of the sources of information that you use to help all of us better understand how to do CMP with perhaps complex RDBMS entity relationships? Thanks, Cory At 09:07 PM 10/20/00 -0400, Jim Archer wrote: What types of relationships do you feel EJB 2.0 can't adequately support? I have been studying 2.0 CMP carefully, and it seems to be quite powerfull. There may be holes in it, but it can handle the majority of real works cases. Jim --On Friday, October 20, 2000 12:28 PM -0700 [EMAIL PROTECTED] wrote: If you don't use an object-relational mapping tool you're still in for a lot of hurt with EJB if you have a complex data model. I don't think CMP really addresses the kind of data models large systems have. Nor does the relationship support in EJB 2.0 either. I think you'll end up doing JDBC BMP with your Session and Entity beans. Performance is only an issue when you make everything a stateful session bean or an entity bean. There are rules for when it's appropriate to make things entity beans. There still isn't a whole lot of useful information around on design EJBs yet though with most of it only explaining the basics including the ORA book. On Fri, 20 Oct 2000, Duffey, Kevin wrote: Thanks. I only meant to use the /classes folder because my ejb code is in the same project as the rest of my code (Servlets, javabeans, action classes, etc). Since it all compiles to the same one folder, I assume I will have to "move" the ejb compiled classes every time I compile them. What I was hoping for was a way to not have to do this..instead, just let the whole project compile to the WEB-INF/classes folder (all my code), and then have Orion pick up on the ejb changes from that point. It appears to me from what
Re: Orion in production
IMHO the docs from the better-known app server vendors are just more pretty. In most cases they aren't actually better. The best docs I've ever seen for applications of this kind are those for open-source CORBA ORBs - ORBacus springs to mind. Maybe Orion can emulate those. I dont know what docs you have been looking at. For me, looking at the JRun 3.0 documentation makes me feel like a desert wanderer hitting an oasis. I think a nicely written, consistent, complete, tutorial-like introduction IS a real value. Now, when relating to the issues covered by the J2EE standard, I can accept that we have the spec and are excpected to read it (thoroughly and completely). But when it comes to server-specific issues, I think full, well-written docs are a must. Also, regarding the pricing issue. I dont think those management types are all that stupid. The fact that a company has 1500 employees, has a huge service force and has been in the business for a decade or more may well be worth a few bucks. Its all a matter of perspective, and there is more than one justified perspective IMO. I as a techie running a small shop am well (somewhat) able to cope with orions deficiencies (only a handful of developers, strange definition of "documentation", etc.) in favor of its qualities. But I do accept that a management type running a 300+ heads shop sees things from a different angle. I thinks it is also fair to reflect that in the pricing..
Problem with Cookies
Dear Friends, When I was trying to set a cookie using a JSP Page using Orion Server, it is working once in while. I don't know the exact problem. Whereas the same code i tried with Jakarta-Tomcat, i is working properly. Please reply to [EMAIL PROTECTED] Thanking you saif Khan --- Waheed Rahuman +91-431-459604 _ Get Your Free ScanMail and Email At http://www.bharatmail.com
RE: Orion in production
I don't think I could say it better myself. I totally agree with you. The fact is, while a few people in the organization I work for believe a small company has little or no support, Magnus, Karl and a number of competent Orion users have given me far better support than I have got from Allaire or BEA..at least 100x better. I mean this. I get answeres EVERY DAY about things I have questions for. Not only was BEA slow in responding (over 1 week), but the people they have their answering questions, first of all are not the developers, second of all don't know the product very well, and third..those that know it can only explain the "basic" things. Technical questions seem to elude all but the developers of BEA and you can't talk to them directly. -Original Message- From: Sven van 't Veer [mailto:[EMAIL PROTECTED]] Sent: Friday, October 20, 2000 2:29 PM To: Orion-Interest Subject: Re: Orion in production "Duffey, Kevin" wrote: easiest to set up. I played around with WebLogic for two weeks (on and off) and still couldn't get my simple JSP page to show up. WebSphere was a nightmare, and while Resin was easy to work with, its not a full J2EE app server. IBM WebSphere..about a year late for the full J2EE support. I can't even believe IBM WebSphere still doesn't support Servlet 2.2 and JSP 1.1! I don't care how many billions you put into your software..if it doesn't even meet the standards that have been in place for almost a year now..it sure doesn't say a lot to me that the money is being spent in the right places! Meanwhile, you have little itty bitty Orion (Ok..they are big to me! ;) over here support EJB 2.0, Servlet 2.3, full J2EE support, clusterable, easy to set up, fast, etc.. I sound like I am a sales man for Orion, but you know..I tend to read up and test alot of the latest stuff and Orion kicks the competitions ass hands down. AFIK Orion is a very small company, only a hand full of people which is great. IMHO lagre companies waste a lof of time and money on meetings and stuff like that which is really bad for productions. Before starting for myself I worked in a couple of those and, eventhough the salary is generally very good the working climate sucks. I hate meetings, 90 % of the time is wasted discussing off-topic issues. The company I worked for had about 50 developers working which isn't even that big (considering Weblogic witb it's 1500). Every day started with a staff meeting of one hour with the section heads and one hour of the section heads with all the section members, resulting in about man hours lost per section per day. If there is anything that makes small companies great, it's their agility. Orion has already implemented mos t of the EJB 2.0 specs while weblogin has just launched it's fully 1.1 compliant server. I'd take Orion over any othjer server, and not only because of it's price, but because it seems there are some really competent people working on this server. sven -- == Sven E. van 't Veer http://www.cachoeiro.net Java Developer [EMAIL PROTECTED] ==
RE: EJB Help..
Thanks. Good news...I used ANT 1.1 and made a simple build script that compiles my com.company.ejb folder into a .jar file including the META-INF dir. I was finally able to get EJB deployed!!! So i am stoked about that. I do have a lot to learn still, and the spec from what I heard was mostly for vendors to understand..didn't help developers too much. But I will read it again. I am also still reading on an EJB book from ORiely press that covers EJB 1.1. It talks more about CTM's than EJB J2EE servers to my surprise, but I suppose they are the same thing. I really want to use stateless EJB session objects that work with entity objects. I don't want my web/client side to access entity objects directly...I don't know if thats the right way or not. What do you think? One of our developers here thinks we should just use Entity objects directly, but I don't see how that will help locate our logic on the ejb server. Do ejb session objects work directly with entity objects? Ahh..so much to learn..so little time. I think I'll be just in time for EJB 2.0! :) -Original Message- From: Juan Lorandi (Chile) [mailto:[EMAIL PROTECTED]] Sent: Friday, October 20, 2000 2:52 PM To: Orion-Interest Subject: RE: EJB Help.. the create method must reside in the Home interface and must match an ejbCreate method in the bean class... the Home And Remote interfaces (Login.java and LoginHome.java) must be implemented somewhere, because the Bean class doesn't implement it... EJB Servers/Containers, at deploy time, build a class that implements them and calls your ejb-- providing an indirection pattern which enables to provide transaction, security, caching and pooling support I suggest you read (again) extra carefully the ejb spec, and don't skip any section, specially the ones about Container responsabilities, this will give you the insight to know why your app isn't behaving well... HTH, Rifle PS: Copies of your Login*.java and the ejb-jar.xml would be welcome... -Original Message- From: Duffey, Kevin [mailto:[EMAIL PROTECTED]] Sent: Viernes, 20 de Octubre de 2000 17:22 To: Orion-Interest Subject: RE: EJB Help.. HI, Double check your ejb-jar.xml--are you setting LoginHome as your Home interface in there? Is there a LoginHome.create() method declared? Is there a LoginBean.ejbCreate() method defined? Hmm..I don't have a LoginHome.create()..the Orion Primer didn't show that. I have a Login.java, LoginBean.java and LoginHome.java. I think Login.java is the only one with a create() method in it. Should both the "interface" classes have a create() in it? Also, why is Orion trying to compile it if its already compiled? Or is this some sort of "assembly" routine Orion does? I assume from what I read that the EJB server "implements" the interfaces..so is it generating its own code at runtime and that is what compiling is failing? Thanks again.
RE: Remote object callback from a session bean
What your are proposing seems like it should work. I am surprised it doesn't. Why would it not work? Does it not work with RMI? If you can call methods on an object from the client to the server, why can't it be the reverse..where the client object passed in (this) is like a "server" object to the server (which would assume the role of a client in this case). I thought RMI is two way..so I can't make sense of why this wouldn't work. -Original Message- From: Juan Lorandi (Chile) [mailto:[EMAIL PROTECTED]] Sent: Friday, October 20, 2000 2:54 PM To: Orion-Interest Subject: RE: Remote object callback from a session bean Message Beans, regretably, they're only a public draft at this moment, tough orion already provides some support for them -Original Message- From: John D'Ausilio [mailto:[EMAIL PROTECTED]] Sent: Viernes, 20 de Octubre de 2000 17:22 To: Orion-Interest Subject: Remote object callback from a session bean Tell me if I'm insane or not ... I have a session bean, and one of the services it provides is a long-running process which needs to inform the object on whose behalf it is running when various events occur. 1. Client gets the session bean and calls createProcess(processID, this) ... passing itself along 2. Session bean does it's thing, create a process and gives it the client object reference 3. As the process processes, at various points it calls receiveEvent() on the client object reference Seems to me that this should be feasible using standard RMI stuff .. I made an interface extending Remote that exposes the receiveEvent call, made the client class extend UnicastRemoteObject, and ran rmic on the class to generate a stub. The stub source looks sensible. Everything actually runs without error, but the client callback never gets executed and the client finishes but never terminates, as there are a couple of RMI-related threads that never die. I've successfully tested some vanilla RMI stuff and made remote object calls, but I had to create a .java.policy file. Is there some equivalent mechanism that needs to be set up for Orion? Has anyone tried anything this funky? Is there an easier/saner way to do this? Thanks! jd
Re: EJB 2.0 Dependent Object problem - NPE on deploy
Jim,
Try adding a field-name tag in your dependent cmp-field declarations:
dependents
dependent
dependent-nameaddrDo/dependent-name
dependent-classTest20CmpDo.eb.AddrDo/dependent-class
cmp-fieldfield-namestreet/field-name/cmp-field
cmp-fieldfield-namecity/field-name/cmp-field
cmp-fieldfield-namestate/field-name/cmp-field
cmp-fieldfield-namezip/field-name/cmp-field
/dependent
/dependents
I can't remember how I discovered this - it worked for me when I first
looked into ejb 2.0 / cmr / orion a couple of months ago.
Also, the ejb-name for the entity must match exactly with the role-source
ejb-name in the relationship. You have Temp20CmpDo.eb.Person in the former
and and Temp20CmpDo.eb.PersonEJB in the latter.
Hope this helps,
Earl
Earl S. Marwil, Ph.D. / Senior Scientist / SCIENTECH, Inc.
__o / TEL: (208) 525-3717 / 1690 International Way
-\, / FAX: (208) 529-4721 / Idaho Falls, ID 83402
0/ 0__ / net: [EMAIL PROTECTED]
RE: Orion in production
Hi, One thing we'll probably end up doing is getting a pricey app server so we can tell outside folks we have it, and then continue using Orion so that we can assure ourselves that things will work. Seems stupid, but that's the way things are. Thats a good ideas as long as they don't use any netcraft website style stuff..where they can enter a domain name and see the server and version info! :) One valid concern our business folks have is, "what is Orion's future?" _I_ don't know where they stand from a business viewpoint (revenue, profits, business plan) and so it's really tough to know whether they'll be around in a year. What's to stop them being bought out? For this reason we'll end up using Orion in production to some degree, but we'll also have a shiny stand-by app server migration plan, JIC. That is a concern of ours as well. I am hoping with WebLogic 6.0 I can easily move our app from Orion to WebLogic so that I can "prove" to my boss that its moveable. I have experienced the same pains you have..in that while our app is fully Java (and hopefully soon J2EE), it doesn't seem to be easily moveable as once thought. I think its probably 99% server related..I haven't had to change any code to run on different servers. But it does require some tweaking, and I have yet to move my Orion app successfully to WebLogic. I think that is because WebLogic is far from implementing J2EE as Orion has. (Pretty sad when you compare the small team of Orion compared to the large team of developers WebLogic has).
RE: Orion in production - new howto
I've just added a new HowTo to orionsupport.com. Details one approach to running Orion securely on UNIX/Linux. Also includes a useful shell script for administering Orion with. http://www.orionsupport.com/articles/unixprocess.html This is just one way of securing Orion... as Mike said, we'd love to hear how others approached the problem. -Joe Walnes -- At 05:28 22/10/2000, Mike Cannon-Brookes wrote -- This sounds fascinating - I'd love to know more about *ix permissions, securing Orion properly etc. You sound like you've got it all down pat, if you wouldn't mind, I'd love to learn more about your setup - as I'm sure other Orion users would. How about writing a quick how to doc about securing Orion on *ix? The OrionSupport team will love you for it ;)
RE: EJB Help..
Hi Kevin... Accessing entity beans through session beans is usually the recomended procedure, but it does depend on what your doing. Jim --On Sunday, October 22, 2000 10:32 AM -0700 "Duffey, Kevin" [EMAIL PROTECTED] wrote: Thanks. Good news...I used ANT 1.1 and made a simple build script that compiles my com.company.ejb folder into a .jar file including the META-INF dir. I was finally able to get EJB deployed!!! So i am stoked about that. I do have a lot to learn still, and the spec from what I heard was mostly for vendors to understand..didn't help developers too much. But I will read it again. I am also still reading on an EJB book from ORiely press that covers EJB 1.1. It talks more about CTM's than EJB J2EE servers to my surprise, but I suppose they are the same thing. I really want to use stateless EJB session objects that work with entity objects. I don't want my web/client side to access entity objects directly...I don't know if thats the right way or not. What do you think? One of our developers here thinks we should just use Entity objects directly, but I don't see how that will help locate our logic on the ejb server. Do ejb session objects work directly with entity objects? Ahh..so much to learn..so little time. I think I'll be just in time for EJB 2.0! :) -Original Message- From: Juan Lorandi (Chile) [mailto:[EMAIL PROTECTED]] Sent: Friday, October 20, 2000 2:52 PM To: Orion-Interest Subject: RE: EJB Help.. the create method must reside in the Home interface and must match an ejbCreate method in the bean class... the Home And Remote interfaces (Login.java and LoginHome.java) must be implemented somewhere, because the Bean class doesn't implement it... EJB Servers/Containers, at deploy time, build a class that implements them and calls your ejb-- providing an indirection pattern which enables to provide transaction, security, caching and pooling support I suggest you read (again) extra carefully the ejb spec, and don't skip any section, specially the ones about Container responsabilities, this will give you the insight to know why your app isn't behaving well... HTH, Rifle PS: Copies of your Login*.java and the ejb-jar.xml would be welcome... -Original Message- From: Duffey, Kevin [mailto:[EMAIL PROTECTED]] Sent: Viernes, 20 de Octubre de 2000 17:22 To: Orion-Interest Subject: RE: EJB Help.. HI, Double check your ejb-jar.xml--are you setting LoginHome as your Home interface in there? Is there a LoginHome.create() method declared? Is there a LoginBean.ejbCreate() method defined? Hmm..I don't have a LoginHome.create()..the Orion Primer didn't show that. I have a Login.java, LoginBean.java and LoginHome.java. I think Login.java is the only one with a create() method in it. Should both the "interface" classes have a create() in it? Also, why is Orion trying to compile it if its already compiled? Or is this some sort of "assembly" routine Orion does? I assume from what I read that the EJB server "implements" the interfaces..so is it generating its own code at runtime and that is what compiling is failing? Thanks again.
Data Sources Help
Can anyone provide a step-by-step 'hello world' procedure for setting up
data-sources.xml properly and calling the resource from within a servlet?
Alternatively, can someone review my setup and comment on what might be
wrong?
The section of my data-sources.xml looks like this:
data-source
class="com.evermind.sql.DriverManagerDataSource"
name="jdbc/d123DS"
location="jdbc/d123DS"
xa-location="jdbc/xa/d123XADS"
ejb-location="jdbc/d123DS"
connection-driver="oracle.jdbc.driver.OracleDriver"
username="username"
password="password"
url="jdbc:oracle:thin:my.oracle.host:@dev2:1521:D123DEV"
inactivity-timeout="30"
/
I'm attempting to create a connection within my servlet. Snippets of
the relevant code:
public class DSTest extends HttpServlet
{
InitialContext ctx;
DataSource ds;
...
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
res.setContentType("text/html");
PrintWriter out = res.getWriter();
try {
ctx=new InitialContext();
ds = (DataSource) ctx.lookup("java:comp/env/jdbc/d123DS");
con = ds.getConnection();
...
}
...
catch (NamingException e) { System.out.println(e); }
}
It is catching the NamingException, telling me:
javax.naming.NamingException: Error instantiating web-app JNDI-context: No
location specified for resource-ref d123DS
So I went and added to my application's web.xml, since this isn't under the
default orion application:
context-param
param-named123DS/param-name
param-valuejdbc/d123DS/param-value
/context-param
resource-ref
descriptionTest Data Source/description
res-ref-named123DS/res-ref-name
res-typejavax.sql.DataSource/res-type
res-authContainer/res-auth
/resource-ref
And it still catches the same exception.
Am I missing something simple? I'll gladly write up a tutorial for this for
orionsupport.com if I can get this working.
My environment: jdk 1.3, orion 1.4.0
Any help would be wonderful.
--
David S. Kenzik
[EMAIL PROTECTED] - http://kenzik.com
Original Music - http://mp3.com/text
java:comp/UserTransaction not found
dear all, i'm sort of still learning about entity beans and wondered if anyone had any pointers for an error i'm getting. i receive *no* error when i try to obtain a reference to a UserTransaction from a stateless server bean under orion. i receive the following error when i try to obtain a reference to a UserTransaction from a java program running *outside* orion, that is similar to CartClient in the orion examples. javax.naming.NameNotFoundException: java:comp/UserTransaction not found i can get around this error by having a stateless session bean do the UserTransaction stuff, and act as a facade to the other various entity and session bean methods but was wondering if there was a way around the above problem. thanks, greg.
RE: Orion in production
On Today, Duffey, Kevin ([EMAIL PROTECTED]) wrote: I don't think I could say it better myself. I totally agree with you. The fact is, while a few people in the organization I work for believe a small company has little or no support, Magnus, Karl and a number of competent Orion users have given me far better support than I have got from Allaire or BEA..at least 100x better. I mean this. I get answeres EVERY DAY about things I have questions for. I wish I could say the same. I've asked maybe five questions, and received exactly one answer. That one took a week or so. I've basically given up on the support address. And I'm a paying customer! Not too excited about buying any more licenses at this point. Gary Shea iTransact.com, Inc.
Re: Data Sources Help
On Today, David Kenzik ([EMAIL PROTECTED]) wrote:
ds = (DataSource) ctx.lookup("java:comp/env/jdbc/d123DS");
Well, it took me a couple weeks (not full time!) to figure out that
even though they tell you to use java:comp/env/jdbc... it doesn't
actually work. Instead do your lookup on just "jdbc/d123DS".
At least, that's what worked for me...
Gary
--
David S. Kenzik
[EMAIL PROTECTED] - http://kenzik.com
Original Music - http://mp3.com/text
RE: Orion in production
I agree that sometimes support can be lacking, but I've worked out the key - specific questions! I find if I send them a specific question (usually with a working example I'll whip up), they can deploy it and get an answer to me quite quickly (1-2 days). If you ask a vague question like "How do JNDI bindings work in local apps?" it generally doesn't illicit a response ;) Just my experiences, Mike -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Gary Shea Sent: Monday, October 23, 2000 1:34 PM To: Orion-Interest Subject: RE: Orion in production On Today, Duffey, Kevin ([EMAIL PROTECTED]) wrote: I don't think I could say it better myself. I totally agree with you. The fact is, while a few people in the organization I work for believe a small company has little or no support, Magnus, Karl and a number of competent Orion users have given me far better support than I have got from Allaire or BEA..at least 100x better. I mean this. I get answeres EVERY DAY about things I have questions for. I wish I could say the same. I've asked maybe five questions, and received exactly one answer. That one took a week or so. I've basically given up on the support address. And I'm a paying customer! Not too excited about buying any more licenses at this point. Gary Shea iTransact.com, Inc.
Re: Data Sources Help
Gary Shea said...
On Today, David Kenzik ([EMAIL PROTECTED]) wrote:
ds = (DataSource) ctx.lookup("java:comp/env/jdbc/d123DS");
Well, it took me a couple weeks (not full time!) to figure out that
even though they tell you to use java:comp/env/jdbc... it doesn't
actually work. Instead do your lookup on just "jdbc/d123DS".
Yes, Greg Matthews sent me a note shortly after receiving my inquiry with
that same answer-- this is the case, "java:comp/env/jdbc..." won't work, you
must shorten it to simply "jdbc/SOURCENAME".
Now that is out of the way, and it __was__ working for a bit. Really!
However, I wanted to restart Orion and pass it some debugging info to find a
pesky connection leak. Now my Orion won't startup:
Error initializing server: DriverManagerDataSource driver
'oracle.jdbc.driver.OracleDriver' not found
I've changed nothing and can't figure out what the heck would've caused
this.
My oracle.zip jdbc drivers are available because if I comment out my
data-sources tag and start Orion, my servlets that use the Oracle jdbc
driver directly (without the Orion driver manager) work just fine.
I'm totally boggled at this point. Any ideas?
Also, does anyone else notice that it takes nearly an hour for messages to
make it to the list distribution, or is it just my location versus the
Evermind mail server I guess I'm used to instant email. ;-)
--
David S. Kenzik
[EMAIL PROTECTED] - http://kenzik.com
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