Re: Problem with UserTransaction reference within Servlet code.
The answer's in the question ;) Tomcat is not a J2EE Server but an implementation of the Servlet Specification (which is but a part of the whole J2EE spec). Tomcat's JNDI lookups are in-process only. Need an open source J2EE container? Have a look at JBoss... Hassan Sajjad wrote: Hi Can anyone help! Problem with UserTransaction reference within Servlet code. When you reference UserTransaction object in your Servlet Code, as from J2EE Specification: The J2EE Product Provider is responsible for providing an appropriate object as required There's a code snippet. Context initCtx = new InitialContext(); UserTransaction tx = (UserTransaction)initCtx.lookup(java:comp/UserTransaction); This works fine on J2EE Impementation Servers but fails on Tomcat 4.1.3. Exception: javax.naming.NameNotFoundException: Name javax.transaction.UserTransaction is not bound in this Context at org.apache.naming.NamingContext.lookup(NamingContext.java:811) at org.apache.naming.NamingContext.lookup(NamingContext.java:194) at org.apache.naming.SelectorContext.lookup(SelectorContext.java:183) at javax.naming.InitialContext.lookup(InitialContext.java:347) Thanks Hassan PREMIER HOUSEWARES Premier Business Park, 55 Jordanvale Avenue Whiteinch Glasgow G14 0QP UK - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Problem with UserTransaction reference within Servlet code.
Jon Wingfield, thanks for your reply. My application is a Web Application (.war) only, no ejb's etc. However, since I'm using Composite View Pattern (aka Templating), I want different parts to be combined into One View, all in one transaction. This is done in a Servlet. Now if Tomcat doesn't provide a reference to an implementation of javax.transaction.UserTransaction, through JNDI lookup, then I believe there must be some other of doing this. e.g. Using a third party package that provides the implementation of javax.transaction api and plugging it in the application. Do you know of any? Remember, after all this is on the Web Tier, Tomcat tier, there must be a way of doing it! Thanks Hassan - Original Message - From: Jon Wingfield [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, April 06, 2004 11:25 AM Subject: Re: Problem with UserTransaction reference within Servlet code. The answer's in the question ;) Tomcat is not a J2EE Server but an implementation of the Servlet Specification (which is but a part of the whole J2EE spec). Tomcat's JNDI lookups are in-process only. Need an open source J2EE container? Have a look at JBoss... Hassan Sajjad wrote: Hi Can anyone help! Problem with UserTransaction reference within Servlet code. When you reference UserTransaction object in your Servlet Code, as from J2EE Specification: The J2EE Product Provider is responsible for providing an appropriate object as required There's a code snippet. Context initCtx = new InitialContext(); UserTransaction tx = (UserTransaction)initCtx.lookup(java:comp/UserTransaction); This works fine on J2EE Impementation Servers but fails on Tomcat 4.1.3. Exception: javax.naming.NameNotFoundException: Name javax.transaction.UserTransaction is not bound in this Context at org.apache.naming.NamingContext.lookup(NamingContext.java:811) at org.apache.naming.NamingContext.lookup(NamingContext.java:194) at org.apache.naming.SelectorContext.lookup(SelectorContext.java:183) at javax.naming.InitialContext.lookup(InitialContext.java:347) Thanks Hassan PREMIER HOUSEWARES Premier Business Park, 55 Jordanvale Avenue Whiteinch Glasgow G14 0QP UK - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Problem with UserTransaction reference within Servlet code.
There is always a way ;) Saw this the other day: http://www.theserverside.com/discussions/thread.tss?thread_id=24879 Googled for this for JTA integration with tomcat: http://www.onjava.com/pub/a/onjava/2003/07/30/jotm_transactions.html JNDI config for tomcat: http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-resources-howto.html Have fun, Jon Hassan Sajjad wrote: Jon Wingfield, thanks for your reply. My application is a Web Application (.war) only, no ejb's etc. However, since I'm using Composite View Pattern (aka Templating), I want different parts to be combined into One View, all in one transaction. This is done in a Servlet. Now if Tomcat doesn't provide a reference to an implementation of javax.transaction.UserTransaction, through JNDI lookup, then I believe there must be some other of doing this. e.g. Using a third party package that provides the implementation of javax.transaction api and plugging it in the application. Do you know of any? Remember, after all this is on the Web Tier, Tomcat tier, there must be a way of doing it! Thanks Hassan - Original Message - From: Jon Wingfield [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, April 06, 2004 11:25 AM Subject: Re: Problem with UserTransaction reference within Servlet code. The answer's in the question ;) Tomcat is not a J2EE Server but an implementation of the Servlet Specification (which is but a part of the whole J2EE spec). Tomcat's JNDI lookups are in-process only. Need an open source J2EE container? Have a look at JBoss... Hassan Sajjad wrote: Hi Can anyone help! Problem with UserTransaction reference within Servlet code. When you reference UserTransaction object in your Servlet Code, as from J2EE Specification: The J2EE Product Provider is responsible for providing an appropriate object as required There's a code snippet. Context initCtx = new InitialContext(); UserTransaction tx = (UserTransaction)initCtx.lookup(java:comp/UserTransaction); This works fine on J2EE Impementation Servers but fails on Tomcat 4.1.3. Exception: javax.naming.NameNotFoundException: Name javax.transaction.UserTransaction is not bound in this Context at org.apache.naming.NamingContext.lookup(NamingContext.java:811) at org.apache.naming.NamingContext.lookup(NamingContext.java:194) at org.apache.naming.SelectorContext.lookup(SelectorContext.java:183) at javax.naming.InitialContext.lookup(InitialContext.java:347) Thanks Hassan PREMIER HOUSEWARES Premier Business Park, 55 Jordanvale Avenue Whiteinch Glasgow G14 0QP UK - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Problem with UserTransaction reference within Servlet code.
And of course: http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-datasource-examples-howto.html#Tyrex%20Connection%20Pool Although I'm not sure how actively maintained Tyrex is these days. http://sourceforge.net/projects/tyrex/ Jon Jon Wingfield wrote: There is always a way ;) Saw this the other day: http://www.theserverside.com/discussions/thread.tss?thread_id=24879 Googled for this for JTA integration with tomcat: http://www.onjava.com/pub/a/onjava/2003/07/30/jotm_transactions.html JNDI config for tomcat: http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-resources-howto.html Have fun, Jon Hassan Sajjad wrote: Jon Wingfield, thanks for your reply. My application is a Web Application (.war) only, no ejb's etc. However, since I'm using Composite View Pattern (aka Templating), I want different parts to be combined into One View, all in one transaction. This is done in a Servlet. Now if Tomcat doesn't provide a reference to an implementation of javax.transaction.UserTransaction, through JNDI lookup, then I believe there must be some other of doing this. e.g. Using a third party package that provides the implementation of javax.transaction api and plugging it in the application. Do you know of any? Remember, after all this is on the Web Tier, Tomcat tier, there must be a way of doing it! Thanks Hassan - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Problem with UserTransaction reference within Servlet code.
This looks very promising Jon. Thanks a lot mate. - Original Message - From: Jon Wingfield [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, April 06, 2004 12:58 PM Subject: Re: Problem with UserTransaction reference within Servlet code. And of course: http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-datasource-examples-howto.html#Tyrex%20Connection%20Pool Although I'm not sure how actively maintained Tyrex is these days. http://sourceforge.net/projects/tyrex/ Jon Jon Wingfield wrote: There is always a way ;) Saw this the other day: http://www.theserverside.com/discussions/thread.tss?thread_id=24879 Googled for this for JTA integration with tomcat: http://www.onjava.com/pub/a/onjava/2003/07/30/jotm_transactions.html JNDI config for tomcat: http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-resources-howto.html Have fun, Jon Hassan Sajjad wrote: Jon Wingfield, thanks for your reply. My application is a Web Application (.war) only, no ejb's etc. However, since I'm using Composite View Pattern (aka Templating), I want different parts to be combined into One View, all in one transaction. This is done in a Servlet. Now if Tomcat doesn't provide a reference to an implementation of javax.transaction.UserTransaction, through JNDI lookup, then I believe there must be some other of doing this. e.g. Using a third party package that provides the implementation of javax.transaction api and plugging it in the application. Do you know of any? Remember, after all this is on the Web Tier, Tomcat tier, there must be a way of doing it! Thanks Hassan - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Problem with UserTransaction reference within Servlet code.
Thanks Jon, the resource you mentioned at ONJava did the magic. It's excellent tutorial-type Article, for anyone interested in knowledge reading. It's http://www.onjava.com/pub/a/onjava/2003/07/30/jotm_transactions.html?page=1 Rgds Hassan - Original Message - From: Hassan Sajjad [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, April 06, 2004 1:17 PM Subject: Re: Problem with UserTransaction reference within Servlet code. This looks very promising Jon. Thanks a lot mate. - Original Message - From: Jon Wingfield [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, April 06, 2004 12:58 PM Subject: Re: Problem with UserTransaction reference within Servlet code. And of course: http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-datasource-examples-howto.html#Tyrex%20Connection%20Pool Although I'm not sure how actively maintained Tyrex is these days. http://sourceforge.net/projects/tyrex/ Jon Jon Wingfield wrote: There is always a way ;) Saw this the other day: http://www.theserverside.com/discussions/thread.tss?thread_id=24879 Googled for this for JTA integration with tomcat: http://www.onjava.com/pub/a/onjava/2003/07/30/jotm_transactions.html JNDI config for tomcat: http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-resources-howto.html Have fun, Jon Hassan Sajjad wrote: Jon Wingfield, thanks for your reply. My application is a Web Application (.war) only, no ejb's etc. However, since I'm using Composite View Pattern (aka Templating), I want different parts to be combined into One View, all in one transaction. This is done in a Servlet. Now if Tomcat doesn't provide a reference to an implementation of javax.transaction.UserTransaction, through JNDI lookup, then I believe there must be some other of doing this. e.g. Using a third party package that provides the implementation of javax.transaction api and plugging it in the application. Do you know of any? Remember, after all this is on the Web Tier, Tomcat tier, there must be a way of doing it! Thanks Hassan - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Problem with UserTransaction reference within Servlet code.
Hi, True, it's nicely written but it suggests things that JOTM has never been able to do. In particular, JOTM is not a fully functional transaction manager and will not recover your databases after restart or crash - meaning that the claim that it makes your application robust is to be taken with at least a few grains of salt (especially if you value data integrity)... Of course, one will probably say that I'm biased in what I value to be important in a JTA ;-) Best regards, Guy On dinsdag, apr 6, 2004, at 15:10 Europe/Brussels, Hassan Sajjad wrote: Thanks Jon, the resource you mentioned at ONJava did the magic. It's excellent tutorial-type Article, for anyone interested in knowledge reading. It's http://www.onjava.com/pub/a/onjava/2003/07/30/ jotm_transactions.html?page=1 Rgds Hassan - Original Message - From: Hassan Sajjad [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, April 06, 2004 1:17 PM Subject: Re: Problem with UserTransaction reference within Servlet code. This looks very promising Jon. Thanks a lot mate. - Original Message - From: Jon Wingfield [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, April 06, 2004 12:58 PM Subject: Re: Problem with UserTransaction reference within Servlet code. And of course: http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-datasource- examples-howto.html#Tyrex%20Connection%20Pool Although I'm not sure how actively maintained Tyrex is these days. http://sourceforge.net/projects/tyrex/ Jon Jon Wingfield wrote: There is always a way ;) Saw this the other day: http://www.theserverside.com/discussions/thread.tss?thread_id=24879 Googled for this for JTA integration with tomcat: http://www.onjava.com/pub/a/onjava/2003/07/30/jotm_transactions.html JNDI config for tomcat: http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-resources- howto.html Have fun, Jon Hassan Sajjad wrote: Jon Wingfield, thanks for your reply. My application is a Web Application (.war) only, no ejb's etc. However, since I'm using Composite View Pattern (aka Templating), I want different parts to be combined into One View, all in one transaction. This is done in a Servlet. Now if Tomcat doesn't provide a reference to an implementation of javax.transaction.UserTransaction, through JNDI lookup, then I believe there must be some other of doing this. e.g. Using a third party package that provides the implementation of javax.transaction api and plugging it in the application. Do you know of any? Remember, after all this is on the Web Tier, Tomcat tier, there must be a way of doing it! Thanks Hassan - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Dr. Guy Pardon ( [EMAIL PROTECTED] ) Atomikos: Your Partner for Reliable eBusiness Coordination http://www.atomikos.com/ The information in this email is confidential and only meant for the addressee(s). The content of this email is informal and will not be legally binding for Atomikos.
Re: Problem with UserTransaction reference within Servlet code.
Thanks Hassan, It's always good to receive useful feedback. Maybe we should also publish a light-weight release that doesn't do recovery... Kind of like a 50% JTA. (Actually, that doesn't sound too bad;-) Thanks, Best, Guy On dinsdag, apr 6, 2004, at 15:50 Europe/Brussels, Hassan Sajjad wrote: Guy, I've seen the alternative product at http://www.atomikos.com/download.html, it seems good, however in my instance I only require transaction support to make a composite view from more than one JSP pages (Templating), and I want this to be done in a transaction. Due to this reason I'm not concerned if JOTM does not support database crash etc. Cheers Hassan - Original Message - From: Guy Pardon [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, April 06, 2004 2:26 PM Subject: Re: Problem with UserTransaction reference within Servlet code. Hi, True, it's nicely written but it suggests things that JOTM has never been able to do. In particular, JOTM is not a fully functional transaction manager and will not recover your databases after restart or crash - meaning that the claim that it makes your application robust is to be taken with at least a few grains of salt (especially if you value data integrity)... Of course, one will probably say that I'm biased in what I value to be important in a JTA ;-) Best regards, Guy On dinsdag, apr 6, 2004, at 15:10 Europe/Brussels, Hassan Sajjad wrote: Thanks Jon, the resource you mentioned at ONJava did the magic. It's excellent tutorial-type Article, for anyone interested in knowledge reading. It's http://www.onjava.com/pub/a/onjava/2003/07/30/ jotm_transactions.html?page=1 Rgds Hassan - Original Message - From: Hassan Sajjad [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, April 06, 2004 1:17 PM Subject: Re: Problem with UserTransaction reference within Servlet code. This looks very promising Jon. Thanks a lot mate. - Original Message - From: Jon Wingfield [EMAIL PROTECTED] To: Tomcat Users List [EMAIL PROTECTED] Sent: Tuesday, April 06, 2004 12:58 PM Subject: Re: Problem with UserTransaction reference within Servlet code. And of course: http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-datasource- examples-howto.html#Tyrex%20Connection%20Pool Although I'm not sure how actively maintained Tyrex is these days. http://sourceforge.net/projects/tyrex/ Jon Jon Wingfield wrote: There is always a way ;) Saw this the other day: http://www.theserverside.com/discussions/ thread.tss?thread_id=24879 Googled for this for JTA integration with tomcat: http://www.onjava.com/pub/a/onjava/2003/07/30/ jotm_transactions.html JNDI config for tomcat: http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-resources- howto.html Have fun, Jon Hassan Sajjad wrote: Jon Wingfield, thanks for your reply. My application is a Web Application (.war) only, no ejb's etc. However, since I'm using Composite View Pattern (aka Templating), I want different parts to be combined into One View, all in one transaction. This is done in a Servlet. Now if Tomcat doesn't provide a reference to an implementation of javax.transaction.UserTransaction, through JNDI lookup, then I believe there must be some other of doing this. e.g. Using a third party package that provides the implementation of javax.transaction api and plugging it in the application. Do you know of any? Remember, after all this is on the Web Tier, Tomcat tier, there must be a way of doing it! Thanks Hassan --- -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Dr. Guy Pardon ( [EMAIL PROTECTED] ) Atomikos: Your Partner for Reliable eBusiness Coordination http://www.atomikos.com/ The information in this email is confidential and only meant for the addressee(s). The content of this email is informal and will not be legally binding for Atomikos. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Dr. Guy Pardon ( [EMAIL PROTECTED] ) Atomikos: Your Partner for Reliable eBusiness Coordination http://www.atomikos.com/ The information in this email is confidential and only meant for the addressee(s). The content of this email is informal and will not be legally binding for Atomikos.
