I recently decided to sit down and play with jQuery Mobile and absolutely fell in love with it. I’ve been designing web applications for years, but the pure simplicity in jQuery Mobile is absolutely amazing. The one part I’ve never been good at is graphics with respect to web design. jQuery Mobile removes that requirement [...]
Two of the libraries I’m most interested in lately are Grails and CDI/JSR299 (Weld being the implementation). The problem is that the two are really not compatible directly with each other. First, CDI is a JavaEE6 technology requiring a compliant container (ie: Glassfishv3) whereas Grails can run in any servlet container (plain ol’ WAR). Second, [...]
NOTE: Documentation and code presented here is based on living and changing documentation by the JSR committee and subject to change causing this article to be inaccurate or outdated. I am also not affiliated with the JSR or its members. This blog article is probably a bit premature being it is centered around JDK 8, [...]
I came across an interesting javascript article the other day on how not to write javascript: Google Closure: How not to write JavaScript The interesting part of this article that caught my eye was using a map instead of a switch or if/else statement to check for string comparisons. This got me thinking of whether [...]
In the last few years, annotation-driven libraries have been on the rise in new and even existing libraries. Rather than use configuration files such as XML or properties, libraries now make use of annotations in JDK 5 to mix the configuration directly inline with the code. This simplifies the configuration by not having to maintain [...]
One of the frequent patterns I make use of for Java backend systems are transactional code blocks, and not transactional in the sense of JPA, Hibernate, Databases, etc. I mean generic transactional blocks in which you have to wrap a piece of code with a begin and end block. For example, JPA is just one [...]
One of my applications has several millions cacheable entries. In order to cache as much as possible without going back to the database I use both a memory store and a disk store in my Ehcache configuration. Loading a serialized item from disk is still faster than loading from a database generally. That being said [...]
I have a use case within my database schema that involves a one-to-one relationship. Typically, I map most of my tables with an automatic auto-incrementing primary key. The relationship table then has a single foreign key to its single relationship. This works great within Hiberante and HQL without issue. That is until you begin to [...]
MySQL has the notion of specifying a specific index to use when invoking queries in order to override the default provided by MySQL. Typically, MySQL selects the most optimized index based on the query. However, in some cases, it fails to pick properly reducing performance. In those cases, you need to use the keyword “use [...]
If you use any popular open source technologies, odds are they use or you have used the Apache Commons libraries. The following is a free e-book on using those various libraries. Common Java Cookbook
