A First Web Project with Clojure

Last nights GatorJUG prestation on Clojure with Eric Lavigne introduced us to Clojure's language elements. Say your customer, a timeshare company, wanted a new database driven reservation website. Build a case for Clojure and lay out a reasonable architecture, including use of existing Java components and object relational mapping, or not.

Views: 181

Replies to This Discussion

Permalink Reply by Eric Lavigne on January 16, 2010 at 11:19am
If I offered to finish the site in a week, would my client need further justification :-)

A timeshare reservation site would be fairly trivial from a technology perspective. For the web front-end, I would use Compojure, just as I did with the Wari contest. For database access, I would use clojure.contrib.sql, which has the same capabilities as java.sql but without being so incredibly verbose.

Architecture is important for big projects. This isn't a big project.
Permalink Reply by Michael Levin on January 16, 2010 at 12:10pm
So, Eric - can you say a few words about Compojure? Just enough to get us started. And, please point us to a reference. Is clojure.contrib.sql fairly full featured? Can it to stored procs and transactions? What are some of its strengths and limitations? Just a taste...

Eric Lavigne said:
If I offered to finish the site in a week, would my client need further justification :-)

A timeshare reservation site would be fairly trivial from a technology perspective. For the web front-end, I would use Compojure, just as I did with the Wari contest. For database access, I would use clojure.contrib.sql, which has the same capabilities as java.sql but without being so incredibly verbose.

Architecture is important for big projects. This isn't a big project.
Permalink Reply by Eric Lavigne on January 16, 2010 at 12:47pm
Compojure is a web development library with a focus on simple, RESTful applications. This example should give you a feeling for Compojure:

http://en.wikibooks.org/wiki/Compojure/Getting_Started#A_bit_more_v...

And here are some references:

http://en.wikibooks.org/wiki/Compojure/Core_Libraries
http://en.wikibooks.org/wiki/Compojure/Tutorials_and_Tips
http://github.com/weavejester/compojure


You can find some examples of clojure.contrib.sql here:

http://github.com/richhickey/clojure-contrib/blob/master/src/clojur...

And here's a reference:

http://richhickey.github.com/clojure-contrib/sql-api.html

clojure.contrib.sql has transactions and prepared statements. I don't know about stored procedures, since I have never used them in Clojure or Java.

RSS

Happy 10th year, JCertif!

Notes

Welcome to Codetown!

Codetown is a social network. It's got blogs, forums, groups, personal pages and more! You might think of Codetown as a funky camper van with lots of compartments for your stuff and a great multimedia system, too! Best of all, Codetown has room for all of your friends.

When you create a profile for yourself you get a personal page automatically. That's where you can be creative and do your own thing. People who want to get to know you will click on your name or picture and…
Continue

Created by Michael Levin Dec 18, 2008 at 6:56pm. Last updated by Michael Levin May 4, 2018.

Looking for Jobs or Staff?

Check out the Codetown Jobs group.

 

Enjoy the site? Support Codetown with your donation.



InfoQ Reading List

Java News Roundup: JHipster 9.0, Project Valhalla, Spring, Helidon, OpenXava, Java Operator SDK

This week's Java roundup for March 9th, 2026, features news highlighting: the GA release of JHipster 9.0; Build 27-jep401ea of Project Valhalla; point releases of Spring Tools, Helidon, OpenXava and Java Operator SDK; a maintenance release of Spring Framework; the beta release of the March 2026 edition of Open Liberty; and milestone releases of Micrometer Metrics and Micrometer Tracing.

By Michael Redlich

AWS Launches Managed Openclaw on Lightsail Amid Critical Security Vulnerabilities

AWS launched managed OpenClaw on Lightsail for AI agent deployment while security concerns mount. The 250k-star GitHub project is affected by CVE-2026-25253, which enables one-click RCE, with 17,500+ vulnerable instances exposed. Bitdefender found 20% of ClawHub skills malicious. AWS blueprint provides automated hardening, but doesn't address architectural security limits.

By Steef-Jan Wiggers

Elastic Releases Version 9.3.0 With Enhanced AI Tools and OTel Support

Elastic 9.3.0 is now available, featuring enhanced vector search indexing for RAG applications and significant upgrades to the ES|QL query language. The release deepens OpenTelemetry integration for vendor-neutral observability and updates the AI Assistant with better contextual analysis. Security visibility is also expanded across Kubernetes and serverless architectures.

By Mark Silvester

How Grab Optimizes Image Caching on Android with Time-Aware LRU

To improve image cache management in their Android app, Grab engineers transitioned from a Least Recently Used (LRU) cache to a Time-Aware Least Recently Used (TLRU) cache, enabling them to reclaim storage more effectively without degrading user experience or increasing server costs.

By Sergio De Simone

Google Researchers Propose Bayesian Teaching Method for Large Language Models

Google Research has proposed a training method that teaches large language models to approximate Bayesian reasoning by learning from the predictions of an optimal Bayesian system. The approach focuses on improving how models update beliefs as they receive new information during multi-step interactions.

By Daniel Dominguez

© 2026   Created by Michael Levin.   Powered by

Badges  |  Report an Issue  |  Terms of Service