Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Example of modular Java code for non-web applications

Posted on 2010-09-13
2
Medium Priority
?
663 Views
Last Modified: 2012-05-10
Greetings,

I'm looking for an example of simple modular code in Java. After quite some researching, I'm only finding complex examples and "full" packages which also utilize larger frameworks and such. It seems like there would be a much simpler solution.

I'm assuming some usage of reflection and such. The modules don't need security considerations; they will only be provided and written by in-house developers. The reflection and interfacing is cake, but what I'm largely confused about is how to get the classes loaded dynamically at run-time when the JAR files may be dropped in place at any time.
0
Comment
Question by:michael_martinek
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 1

Accepted Solution

by:
jatyap earned 1000 total points
ID: 33668599
Since you mention that the JAR files can be dropped in place, I'm assuming you want to have something similar to how the Eclipse IDE handles their plugins?

Well, first off, you will need to specify a directory (or group of directories) which your application will treat as a plugin/dropin repository.

I'm not sure if this is what you want, but the following link shows how to load classes from JAR files at runtime. You can also call invoke on the methods, etc. (Basically whatever you can do with reflection)

http://www.javaworld.com/javaworld/javatips/jw-javatip70.html
0
 

Author Closing Comment

by:michael_martinek
ID: 33668685
Exactly it. Thanks!
0

Featured Post

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

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

INTRODUCTION Working with files is a moderately common task in Java.  For most projects hard coding the file names, using parameters in configuration files, or using command-line arguments is sufficient.   However, when your application has vi…
Introduction This article is the last of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers our test design approach and then goes through a simple test case example, how …
Viewers will learn about arithmetic and Boolean expressions in Java and the logical operators used to create Boolean expressions. We will cover the symbols used for arithmetic expressions and define each logical operator and how to use them in Boole…
Viewers will learn about if statements in Java and their use The if statement: The condition required to create an if statement: Variations of if statements: An example using if statements:
Suggested Courses

650 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