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Oracle/XA + Java [was: Oracle: Java + distributed transactions (CORBA OTS + 2PC)]

Oracle/XA + Java [was: Oracle: Java + distributed transactions (CORBA OTS + 2PC)]

Post by Klaus Hildne » Tue, 24 Aug 1999 04:00:00



Hello world,
hi Todd, Bunny, and Eberhard (via BCC),

there seem to be two solutions/compromises to my problem:

1. http://java.sun.com/jta for JTA/JTS (the Java Transaction
API/Service), specifying the packages javax.transaction and
javax.transaction.xa, along with my sought-for prepare() functionality
offered by
http://java.sun.com/products/jta/javadocs-1.0.1/javax/transaction/xa/....
Unfortunately, there currently seems to be no implementation (yet)!?

2. a vendor (Inprise)-specific support for distributed transactions for
Oracle XA + Sybase and JBuilder for C++ *no_Java* *sigh*

I additionally will check what EJB support could do for my problem.

I will have a look in the JBuilder 3 for database apps manuals tomorrow
morning. This all is very unsatisfying.

For anyone interested in the topic: There is an article on JTS in the
German language magazine iX, 8/99, on pp. 116.

*ciao*

Klaus
--
Mit freundlichen Gruessen/Best regards, Klaus Hildner

 
 
 
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Oracle/XA + Java [was: Oracle: Java + distributed transactions (CORBA OTS + 2PC)]

Post by Jose Alberto Fernande » Fri, 17 Sep 1999 04:00:00


I have not followed this thread, but you may want to look at Oracle Application Server
(OAS) it supports distributed components (EJB, and a more CORBA Centric derivative called
Enterprice CORBA Objects) both Java and supports distributed transactions via XA to
Oracle databases.

Hope this helps,

Jose Alberto


> Hello world,
> hi Todd, Bunny, and Eberhard (via BCC),

> there seem to be two solutions/compromises to my problem:

> 1. http://java.sun.com/jta for JTA/JTS (the Java Transaction
> API/Service), specifying the packages javax.transaction and
> javax.transaction.xa, along with my sought-for prepare() functionality
> offered by
> http://java.sun.com/products/jta/javadocs-1.0.1/javax/transaction/xa/....
> Unfortunately, there currently seems to be no implementation (yet)!?

> 2. a vendor (Inprise)-specific support for distributed transactions for
> Oracle XA + Sybase and JBuilder for C++ *no_Java* *sigh*

> I additionally will check what EJB support could do for my problem.

> I will have a look in the JBuilder 3 for database apps manuals tomorrow
> morning. This all is very unsatisfying.

> For anyone interested in the topic: There is an article on JTS in the
> German language magazine iX, 8/99, on pp. 116.

> *ciao*

> Klaus
> --
> Mit freundlichen Gruessen/Best regards, Klaus Hildner


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1. Oracle: Java + distributed transactions (CORBA OTS + 2PC)

Hello world,

is there anybody out there who can give me a hint on how to drive an
Oracle server from a Java program; I do not need the usual JDBC
query/update functionality but the possibility to drive an XA-like
two-phase commit (2PC) protocol.

I am currently working on my diploma thesis and have developed a
skeleton manufacturing execution system MES with Java (JBuilder) and
CORBA (VisiBroker). Currently, the resource part is simulated in memory,
but it takes part in transaction completion via the OTS-coordinator's
prepare(), commit(), commit_one_phase(), and rollback() methods.

Important for me is a mechanism that lets a resource alternatingly join
several transaction branches, i. e. the resource should work on part of
one transaction, then on part of another, and some time later commit the
first one and some time later maybe rollback the second one. This could
be done by connection pooling and JDBC, I think. But it is a problem to
get the prepare() functionality for the 2PC which is very important for
consistent, distributed updates.

Anyone having any hints, program examples, anything?

Please email me a CC, as I am not reading this (huge) newsgroups
regularly. If good answers are flooding in, I could post a summary.

*thanks*
--
Mit freundlichen Gruessen/Best regards, Klaus Hildner

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