Over a million developers have joined DZone.

Red Hat JBoss BRMS - A Shopping Cart Example

· Java Zone

Learn more about the advantages of moving from a monolithic to microservices architecture.  Brought to you in partnership with IBM.

Red Hat Cool Store
It is time for another awesome JBoss Business Rules Management System (BRMS) Cool Store Demo, this time brought to you by Jason Milliron, one of our JBoss Solution Architects.

He put together an example web application based on the popular framework Vaadin which is an example of an online shopping cart. This web application demonstrates interaction between a web front end and a decision table and rules package. This allows the business logic to become externalized from your deployed application and can then be modified as needed at runtime. This application leverages the rules to calculate the shipping costs based on your rules in the table below.

Shipping pricing table
It is pretty simple really, you can adjust how much the ranges are and what the shipping for the shopping cart total order will be by tweaking this table, for example:

  • the price from Tier 1 based on value totaling between $26 - $50 is $5.99
  • you can fill your cart with under $25 of materials to validate
  • adjust it to $6.99 (as shown in yellow)
  • save and commit changes
  • build your coolstore package
  • clear the shopping cart application
  • re-order the same materials and validate the charge to shipping is now $6.99
I have released version 1.0 which will get you started in a very short amount of time. See the provided documentation and Readme file in the project. You will also find a complete BRMS rules package with unit test scenarios. This is a complete project.
Enjoy!

From Idea to Application gives you the architecture to quickly build, manage and run a range of applications (web, mobile, big data, new smart devices, etc.) on an open-standard, cloud-based platform. See why developers are using IBM Bluemix. Brought to you in partnership with IBM.

Topics:

Published at DZone with permission of Eric D. Schabell, DZone MVB. See the original article here.

Opinions expressed by DZone contributors are their own.

The best of DZone straight to your inbox.

SEE AN EXAMPLE
Please provide a valid email address.

Thanks for subscribing!

Awesome! Check your inbox to verify your email so you can start receiving the latest in tech news and resources.
Subscribe

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}