HAS-A and tight coupling

palla sridhar

Ranch Hand

Posts: 111

posted 14 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

On page 164 of K & B, explanation for a Question is given as follows:

HAS-A relationships can lead to tight coupling, it is by no means always the case.

Can you explain how the relationship between HAS-A relationship and tight coupling.

Thanks and Regards,
[url]www.techlikes.com[/url]
*Nothing is CONSTANT in life, except CHANGE*

Anil Kumar Saha

Ranch Hand

Posts: 111

posted 14 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

Tight coupling means difficult to refactor. Let us take a simple example of HAS-A relationship- A car HAS-A wheel. Now, suppose in future you want to refactor your code and want to move out the Wheel object out of the Car object, it will be bit difficult. That�s why HAS-A is tightly coupled.

Regards,

Anil Kumar Saha
SCJP 1.4
http://www.agilej.blogspot.com/

It's weird that we cook bacon and bake cookies. Eat this tiny ad:

Free, earth friendly heat - from the CodeRanch trailboss

https://www.kickstarter.com/projects/paulwheaton/free-heat