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Creating a unique backup file name under Unix

July 16th, 2012
Before updating a system file I'll take a backup copy of it. The less imaginative of you will choose a backup name like file.bak or file2. Some of you will use your initials, especially if you work in an environment where you might run into your colleag… more »

Obtaining the CORBA IOR and connecting to the ZonePortal

June 21st, 2012
It's all very well to talk to these CORBA objects floating around the network but how do you get your first one; how do you get into the system? The Quantel Broadcast System uses an Interoperable Object Reference (IOR) in a well known location. The IOR… more »

Compiling the Quantel’s quentin.idl

May 11th, 2012
In order to drive the Quantel Broadcast system you need to compile the CORBA Interface Definition Language (IDL) file into a language of your choice. There are many CORBA IDL compilers out there: JacORB (Java), OmniORB (Python), TOA (C++), IIOP.NET (.NE… more »

Mastering the Quantel IDL

May 9th, 2012
Quantel is a company based in Newbury (England) that describes itself as: Quantel develops innovative, world-leading content creation systems for broadcast, post and DI. We are driven by a passion to create the most powerful and efficient tools for the… more »

Hibernate exception - attempted to assign id from null one-to-one property

April 26th, 2012
This was a tricky one to solve! Tricky because the exception doesn't happen at the point of error - it happens down the line at the time you try to commit a transaction. This is one of those error messages you just need to know. Here is the top of the exception's stack trace. Almost all of the rest of the stack trace is inside hibernate and doesn't give you any kind of clue as to the cause. more »