Entries filed under 'link of the day'

Posted by Michael Marth JUL 26, 2010

Posted in jcr and link of the day Add comment



[LOTD] IBM's approach to JCR text search

It's always good to get a glimpse into the approaches taken by non-OSS JCR implementations: In a recent technical article on the developerworks website Malarvizhi Kandasamy describes how IBM goes about JCR fulltext search. The actual engine is


Juru, which is a Java library developed by the IBM Haifa research lab

According to the article Juru is capable of some natural language processing like stemming or finding similar spellings.

IBM uses a JCR compliant repository in a number of their products, e.g. Lotus Web Content Management or WebSphere Portal.

Posted by Michael Marth APR 20, 2010

Posted in jcr, link of the day and sling Add comment



[LOTD] Persistence and Sling-generated QR codes

Two good reads for today:

1. Joe Oettinger (previously editor of TheServerSide) has posted a Java-centric evaluation of persistence options. He covers JDBC, ORMs, JCR, Object DBs and JavaSpaces and looks at features like transactions or queries.

2. In Apache Sling it is straight forward to render a node in an alternative format like, say, RSS. Chris Pilsworth has come up with an interesting application of this: a Sling bundle that renders Sling URLs as QR codes. I imagine some CQ5 users might find this useful.

Posted by Michael Marth APR 01, 2010

Posted in link of the day, sling and tutorial Add comment



[LOTD] Sling ResourceProvider for relational databases

Apache Sling implements the concept of a "resource". In many cases the actual implementation of the resource is a JCR node. However, Sling can be extended with other implementations of the ResourceProvider interface. With such an extension Sling will map a URL not to a JCR node, but something else.


In this context Lucas Masini has published a step-by-step tutorial on how to expose rows of relational databases as (read-only) resources within Sling.

Lucas also mentions that there are a number of possibilities to integrate relational databases with Sling. If you want to learn more about this topic check out this great thread on the CQ list.

Posted by Michael Marth FEB 23, 2010

Posted in day, link of the day and open Add comment



[LOTD] Open source and biz models: Day and MySQL

Roberto Galoppini, blogger with a focus on open source topics, has written a post comparing MySQL's value proposition and licensing terms with Day's. Along more well-known considerations about GPL and its business implications Roberto discusses his observation that Day contributes to open-source projects, not products:

Why should we talk about Day Software? Actually they don’t pretend to be an open source vendor, but they do contribute a lot, both in terms of code and open standards definition and support. Simon Phipps’s score card would probably penalize them, but the problem here is that the score card is - quite wrongly in my view - about products instead of projects. Checking out Day’s contributions to open source projects on Ohloh gives a clear picture of why talking of Day makes sense in this context.

Some related articles:

• Roberto had previously interviewed David on the topic.
• Day and Open Source
• How Day Software stumbled upon an open source business strategy

Posted by Michael Marth FEB 22, 2010

Posted in crx, link of the day and sling Add comment



[LOTD] Teeny-weeny CQ

Kas Thomas has hooked up the CK editor with Apache Sling (in the form of CRX) to produce a mini CMS in 64 lines of code. Neat hack!