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RadControls for ASP.NET AJAX The RadAjaxManager control allows you to easily create settings that update many controls on the page. Having a large number of updated controls can both help with a performance problem by rendering smaller portions of the page and worsen the situation by triggering unnecessary DOM layout updates. Dealing with such a performance problem will require actions specific for the current scenario. Most of the slowdown happens when updating multiple controls in a table element.
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<a href="http://adserver.adtechus.com/adlink/3.0/5159/425846/0/16/ADTECH;loc=300;key=key1+key2+key3+key4;grp=[group]" target="_blank"><img src="http://adserver.adtechus.com/adserv/3.0/5159/425846/0/16/ADTECH;loc=300;key=key1+key2+key3+key4;grp=[group]" border="0" width="1" height="1"></a> The SDK has several implementations of the ordered collection interface java.util.List . The three best known are Vector, ArrayList, and LinkedList. <a href="http://adserver.adtechus.com/adlink/3.0/5159/425855/0/170/ADTECH;loc=300;key=key1+key2+key3+key4;grp=[group]" target="_blank"><img src="http://adserver.adtechus.com/adserv/3.0/5159/425855/0/170/ADTECH;loc=300;key=key1+key2+key3+key4;grp=[group]" border="0" width="300" height="250"></a> One question that frequently reaches the Java Performance Tuning site asks about the performance differences between these List classes.
Last updated Jul 3, 2009. In recent years, test-driven development, or at least the process of employing unit tests, has been touted as one of the best mechanisms for developing high-quality code. The reason for test-driven development, or TDD, gaining such widespread adoption is that tested code typically yields higher quality results than untested code (makes sense, right?) The different between TDD and simply writing test cases is that TDD defines a formal process for when and by whom test cases should be written: TDD states that test cases should be written before code is written and that test cases should be written by the developer writing the code that is to be tested.
Last updated Jul 10, 2009. One challenge that we face when writing unit tests is how to test components at a fine-granularity. For example, if you have a web-based application, testing a request as it passes from an action through a business service tier, back to a data access tier, and back out, is a good thing to do, but if the result is incorrect, how do you know where the problem is?
This article introduces you to the indexing mechanism of Lucene, a popular full-text IR library written in the Java language. First, I'll demonstrate how to index your documents with Lucene, then I'll discuss how to improve the indexing performance. Finally, I'll analyze Lucene's index file structure.