Transaction optimization for Read Only Transaction: Spring ReadOnly attribute

This article is a small POC on how the readOnly attribute used in Spring Transaction strategy improves database access in case of transactions that involve only READing data from datasources.
First a small extract from the Spring reference documentation:

The TransactionDefinition interface specifies:
• Isolation: the degree of isolation this transaction has from the work of other transactions. For [...]

Read Full Post »

Understanding Spring Transaction management with Checked and Unchecked exceptions

I have been using Spring TX Management for quite sometime until I recently came upon an article describing the common pitfalls that occur in Transaction Strategies. Although many cases were covered, I would like to describe the common one that is seen in most code.
I am going to explain it with the help of a [...]

Read Full Post »

Import and export IBM WebSphere MQ Components

IBM WebSphere provides a good utility called saveqmgr that enables you to save all the objects, such as queues, channels, etc, defined in a either local or remote queue manager to a file. You can then easily modify the file and use it to alter the definition of the same or another queue manager.
The saveqmgr [...]

Read Full Post »