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MQSeries.net Forum Index » IBM MQ Java / JMS » Extending MQ Base Classes

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martin
PostPosted: Wed Mar 05, 2003 5:23 pm    Post subject: Extending MQ Base Classes Reply with quote

Novice

Joined: 09 Aug 2001
Posts: 17
Location: Charlotte, NC
I dont want to start an OO style war, but was wondering if extending a base MQ class like MQMessage was considered poor practice.

I know that typically Java developers overuse inheiratance when composition would produce better designs, but wanted to know if it was a particularly bad idea with these classes.

When designing classes to represent an MQ message with a large RFH2 header and message body, what technique do you prefer?

1. Extend MQMessage

2. Include MQMessage as a public instance variable

3. Include MQMessage as a private instance variable and wrap all the fields and methods. (I refuse to do this)

4. Include MQMessage as a private instance variable and provide a getter and setter for it.

thanks for your ideas,
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kolban
PostPosted: Sun Mar 16, 2003 6:46 am    Post subject: Reply with quote

Grand Master

Joined: 22 May 2001
Posts: 1072
Location: Fort Worth, TX, USA
I think you hit the nail on the head with your opening line ... its a style kinda thing. Any of the ideas you suggested should work as well as any other.
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