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Tomohiro Iizuka

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Top Stories by Tomohiro Iizuka

The Openshift is the Paas cloud environment using Cgroup of SELinux. It is opensource software and the Openshift online provides free server. ... (more)

Performance of Executing SQL with PostgreSQL on Alinous-Core

Everybody may guess if development is easier, then performence become worse. But by developing Alinous-Core, actually no problem about bad performance. Alinous-Core is written in Java language, and using connection to PostgreSQL via JDBC. And Alinous-Core use precompiled statement as possible as it can. Almost all SQL are executed as precompiled statement. If you are going to use precompile statement in Java or other language, you have to write program to use it. But in the case of Alinous-Core, just write SQL. Alinous-Core has internal SQL compiler and check if executing as precompiled ... (more)

JSon or XML

The format, JSon and XML represents almost same structure of values. But recently, most of jQuery application use Json. I think it is because JSon is easy to write, and the format is simpler than XML. When I implement functions handling SOAP and AJAX in Alinous-Core, which is programming language that I made, I felt JSon is light weight and easy to deal. And recently, when we do SEO, server response speed is required. If the data transferred through the network is light, the server response speed become higher. So I think developers of Javascript and jQuery choose the JSon. Respons... (more)

Let's make your software automated testing available.

I've almost finished to make tutorial of testing automation for jQuery examples. In this process, I found some of them are not ready for that. The difference between one of testing automation ready and not ready is whether it is accessible with xpath or not. I often use xpath to specify the element in the web browser, so if it is not specified by the xpath, it is impossible to test it by JUnit and selenium, which is out of the web browser. The most easy way to make the web application ready for the xpath is to add attribute which means the identifier of the element. For eexample, thi... (more)

Updated document about thread synchronization

Today added document about Thread synchronization. In Alinous-Core, synchronized block, list like java, is available. http://alinous.org/html/documents/manual/synchronize.html This block has 2 ways about usage. standard synchronized blocknamed synchronized blockThe detail is simply written in the document. This function will used frequently used in Rich Client UI using jQuery. Because conflict of resource access is big enemy for the  Rich Client UI. And I consider distributed servers, such as clustering web server using cloud computing. This lock is available in the tomcat cluster. The Ali... (more)