Andrej Koelewijn

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software development

Getting started with Nexus maven repository manager

March 9th, 2010  |  by akoelewijn  |  published in java, oss, software development

Nexus is a maven repository manager. You can use Nexus to host your own maven repository for artifact created in your company, or for caching external artifacts.
Getting started with Nexus is pretty easy. Download the application. The package contains a webserver, so you don’t have to have a java container running. Simply unpack the [...]

Usability: a must have, not a nice to have

January 26th, 2010  |  by akoelewijn  |  published in software development

Most people think good usability is not very important for internal IT systems: you can train the users and write manuals to compensate for bad usability. Also, your internal users have no choice, so they’re not going to go to the competition if your IT system is hard to use.
A story in webwereld shows that [...]

Configure diffmerge with git

January 8th, 2010  |  by akoelewijn  |  published in oss, software development

Use the following to configure git to use diffmerge for diffing and merging files:

git config –global diff.tool diffmerge
git config –global difftool.diffmerge.cmd "diffmerge \"\$LOCAL\" \"\$REMOTE\""

git config –global merge.tool diffmerge
git config –global mergetool.diffmerge.cmd diffmerge –merge –result=\"\$MERGED\"
\"\$LOCAL\" \"\$BASE\" \"\$REMOTE\"
git config –global mergetool.diffmerge.trustexitcode false

The following will show diffmerge with the two versions of myfile.java side by side:

git [...]

SOA Governance: implicit or explicit

December 15th, 2009  |  by akoelewijn  |  published in soa, software development

Today, during a SOA workshop we had a discussion about governance. Most people see the need for Governance when applying SOA. Without governance your beautiful flexible architecture will soon evolve into SOA spaghetti. Hard to modify, the opposite of business agility.
One goal of SOA governance is that it should verify that Services are reusable: Shared [...]

Git presentation JFall 2009

November 11th, 2009  |  by akoelewijn  |  published in software development

Just uploaded my Jfall presentation on Git:
Version Control with Git
View more documents from andrejk.

Oracle Team Productivity Center

July 2nd, 2009  |  by akoelewijn  |  published in oracle, software development

Yesterday Oracle released Oracle Fusion Middleware 11g, a SOA stack including WebLogic, BPEL, Rules, Metadata support, Oracle ADF, and improved declarative programming support in the new release of JDeveloper. If you google it, you’ll find plenty of blogs describing all the details of this new release.
One thing that surprised me is that Oracle now also [...]

Friendfeeds usage of mysql: schema-less

April 6th, 2009  |  by akoelewijn  |  published in oracle, oss, software development

Interesting discussion on friendfeeds new database usage: How FriendFeed uses MySQL to store schema-less data. It’s basically a key-value database implemented on top of mysql, to get around schema-change and index performance problems in mysql.
There is a lot of activity around non-RDBMS databases recently. Although it’s always interesting to see new development and innovation, [...]

Your data wants to be free

February 16th, 2009  |  by akoelewijn  |  published in software development

In a response to Is the Relational Database Doomed, and my post REST is a distributed data model, Anders Nawroth wrote an interesting post, The future of RDBMS’s, which made me think about the role of databases.
Anders makes the statement that RDBMSes aren’t very good at storing relationships. He points out that there are better [...]

Nice example of product development as a learning process

February 4th, 2009  |  by akoelewijn  |  published in software development

Paul Buchheit has another good example why you shouldn’t completely design new products in design documents in his post Communicating with code:
From that day until launch, every new feature went live immediately, and most new ideas were implemented as soon as possible. This resulted in a lot of churn — we re-wrote the frontend about [...]

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  • Google’s Chief Economist: “Newspapers Have Never Made Much Money From News” March 10, 2010
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  • Researching differences between Mule and Oracle OSB, any chance of reusing mule code in osb... March 10, 2010
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  • RT @monkchips: DHS: Smartphones to Sniff Out Suspicious Substances http://bit.ly/cq2JRD March 10, 2010
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  • Amerikanen rangschikken Rotterdams MVRDV in top 50 March 9, 2010
    andrej koelewijn Amerikanen rangschikken Rotterdams MVRDV in top 50 - http://www.idealize.nl/2010... Tuesday from Google Reader - Comment - Like […]
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  • Getting started with Nexus maven repository manager March 9, 2010
    andrej koelewijn Getting started with Nexus maven repository manager - http://www.andrejkoelewijn.com/wp... Tuesday from Google Reader - Comment - Like […]
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  • @eelzinga Did you add the remote repository to the correct reposutory group in nexus? http://bit.ly/a2gTmZ March 9, 2010
    andrej koelewijn @eelzinga Did you add the remote repository to the correct reposutory group in nexus? http://www.andrejkoelewijn.com/wp... Tuesday from Twitter - Comment - Like […]
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  • Getting started with Nexus maven repository manager March 9, 2010
    andrej koelewijn Getting started with Nexus maven repository manager - http://www.andrejkoelewijn.com/wp... Tuesday from Andrej Koelewijn - Comment - Like […]
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  • Re: 7 Reasons For Apple To Acquire Adobe March 7, 2010
    andrej koelewijn Re: 7 Reasons For Apple To Acquire Adobe - http://thenextweb.com/apple... Saturday from Disqus - Comment - Like "Seems to me you left out the most important reason: ipad will be about media convergence: combining books with magazines, newspapers, tv and internet. Currently adobe seems to have the best tools to create these new types of […]
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  • Do we need a new tech literacy? (Behind the “big data” services like Twitter, Facebook use) March 6, 2010
    andrej koelewijn Do we need a new tech literacy? (Behind the “big data” services like Twitter, Facebook use) - http://scobleizer.com/2010... Saturday from Google Reader - Comment - Like […]
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  • Pivot: Business intelligence meets the internet as a database http://bit.ly/bFc6wp March 6, 2010
    andrej koelewijn Pivot: Business intelligence meets the internet as a database http://infosthetics.com/archive... Saturday from Twitter - Comment - Like […]
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