Organization of Java packages ...

Posted on 2002-04-07
Last Modified: 2010-03-31
We are developing a Java based application and would need some recommendation regarding the organization of Java packages. The application is made up of 6-7 components. Hence it will at least have 6-7 packages. However, there are some miscellaneous packages as well such as Exceptions (which contains base exceptions), ValueObjects, interfaces etc.
Please consider an example:
org.mypackage.exceptions : contains base class for exceptions. All specific exceptions extend this base class.

org.mypackage.valueobjects : contains a base class for valueobjects. ValueObjects specific to a component extend this base class.

org.mypackage.Component1 : contains classes specific to a componet (specifc valueobects, exceptions etc.).

Should I place componet1 specific classes in the component1 package or should I place them in specific packages such as org.mypackage.valueobjects, org.mypackage.Exceptions.

as an example: should a  component1specifc exception class be present in the org.mypackage.exception package or in the org.mypackage.Component1 package.

should a  component1specifc valueobejct class be present in the org.mypackage.valueobject package or in the org.mypackage.Component1 package.

Which is the best practice?

Question by:shayad
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Expert Comment

ID: 6924033
I should treat the exception classes in the same way as the other classes. I should make some kind of org.some_package_path_.common and put more general things there, such as classes that many other inherit from. That could be exceptions or regular classes that many other inherit from.

Accepted Solution

exorcist earned 50 total points
ID: 6924820
the package structure of specific components should resemble the package structure of the common package. So for example:




that's how I would do it.

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