Solved

Organization of Java packages ...

Posted on 2002-04-07
2
249 Views
Last Modified: 2010-03-31
Hi,
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.
and

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?

Thanks
Sharad
0
Comment
Question by:shayad
2 Comments
 

Expert Comment

by:mdoland
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.
0
 
LVL 3

Accepted Solution

by:
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:

com.mybiz.common.exceptions
com.mybiz.common.valueobject
com.mybiz.common.facade

com.mybiz.component1.exceptions
com.mybiz.component1.valueobject
com.mybiz.component1.facade

com.mybiz.component2.exceptions
com.mybiz.component2.valueobject
com.mybiz.component2.facade

that's how I would do it.
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
how do i compare an object based on two fields 6 54
java stored proc example 9 32
CSV file parsing thru Java 13 31
sql import cannot be resolved jsp 3 23
Java had always been an easily readable and understandable language.  Some relatively recent changes in the language seem to be changing this pretty fast, and anyone that had not seen any Java code for the last 5 years will possibly have issues unde…
Are you developing a Java application and want to create Excel Spreadsheets? You have come to the right place, this article will describe how you can create Excel Spreadsheets from a Java Application. For the purposes of this article, I will be u…
Video by: Michael
Viewers learn about how to reduce the potential repetitiveness of coding in main by developing methods to perform specific tasks for their program. Additionally, objects are introduced for the purpose of learning how to call methods in Java. Define …
Viewers will learn one way to get user input in Java. Introduce the Scanner object: Declare the variable that stores the user input: An example prompting the user for input: Methods you need to invoke in order to properly get  user input:

777 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question