7652b11bca
* initial commit, created package, README, pom, and directory structure. * Issue#1264, continue working on JavaBeans, added getters, setters, and private fields. Created test file for JavaBeans. * set up junit for tests folder. * Issue#1264, set up local server and added web-application framework to composite-view to allow the JSP to run on a local Tomcat container. Wrote unit tests for Java-bean class, working on JSP pages. * Issue#1264, Added forwarding functionality to servlet and main composite view page. * Issue#1264, Finished composite view template in newsDisplay.jsp and created atomic sub-view components in businessNews.jsp, header.jsp, localNews.jsp, scienceNews.jsp, sportsNews.jsp, worldNews.jsp. Composite view page renders correctly, atomic views are inserted in and substituted in the template page depending on request parameters. * Issue#1264, Added all views, updated README.md with documentation. * Issue#1264, updated README.md, moved images folder into etc folder. * Issue#1264, removed build artifacts from tracked files. * Issue#1264, updated README.md * Issue#1264, updated README.md * Issue#1264, removed unused import, made AppServlet class final, changed to .equals() for string comparison. * Issue#1264, in AppServlet, put the output writing into try blocks to ensure writers are closed. * Issue#1264, added tests for Servlet, coverage up to 100%, used lombok to reduce boilerplate setters and getter, updated README.md with better grammar, appropriate tags and links to related patterns. Updated pom.xml to get rid of superfluous lines. * Issue#1264, made changes as requested in README.md. Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>
Design patterns implemented in Java
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Introduction
Design patterns are the best, formalized practices a programmer can use to solve common problems when designing an application or system.
Design patterns can speed up the development process by providing tested, proven development paradigms.
Reusing design patterns help prevent subtle issues that cause major problems, and it also improves code readability for coders and architects who are familiar with the patterns.
Getting started
This site showcases Java Design Patterns. The solutions have been developed by experienced programmers and architects from the open-source community. The patterns can be browsed by their high-level descriptions or by looking at their source code. The source code examples are well commented and can be thought of as programming tutorials on how to implement a specific pattern. We use the most popular battle-proven open-source Java technologies.
Before you dive into the material, you should be familiar with various Software Design Principles.
All designs should be as simple as possible. You should start with KISS, YAGNI, and Do The Simplest Thing That Could Possibly Work principles. Complexity and patterns should only be introduced when they are needed for practical extensibility.
Once you are familiar with these concepts you can start drilling down into the available design patterns by any of the following approaches
- Search for a specific pattern by name. Can't find one? Please report a new pattern here.
- Using tags such as
Performance,Gang of FourorData access. - Using pattern categories,
Creational,Behavioral, and others.
Hopefully, you find the object-oriented solutions presented on this site useful in your architectures and have as much fun learning them as we had while developing them.
How to contribute
If you are willing to contribute to the project you will find the relevant information in our developer wiki. We will help you and answer your questions in the Gitter chatroom.
License
This project is licensed under the terms of the MIT license.
