Prairie Vista Elementary School

An elementary school I found next to my house. Looks nothing but a small deserted building coming out of nowhere as my first impression. It turns out a classy school that people waits in queue for months to get enrolled.

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Spring, Angular and other reasons I like and hate Bazel at the same time

For several weeks I've been trying to put together an Angular application served Java Spring MVC web server in Bazel. I've seen the Java, Angular combination works well in Google, and given the popularity of Java, I want get it to work with open source. How hard can it be to run arguably the best JS framework on a server in probably the most popular server-side language with the mono-repo of planet-scale ? The rest of this post walks through the headaches and nightmares I had to get things to work but if you are just here to look for a working example, github/jiaqi/angular-on-java is all you need. https://github.com/jiaqi/angular-on-java Java web application with Appengine rule Surprisingly there isn't an official way of building Java web application in Bazel, the closest thing is the Appengine rule and Spring MVC seems to work well with it. 3 Java classes, a JSP and an appengine.xml was all I need. At this point, the server starts well but I got "No

Customize IdGenerator in JPA, gap between Hibernate and JPA annotations

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A dozen things to know about AWS Simple Workflow in Eclipse and Maven

Amazon AWS Simple Workflow AWS Simple Workflow(SWF) from Amazon is a unique workflow solution comparing to traditional workflow products such as JBPM and OSWorkflow. SWF is extremely scalable and engineer friendly(in that flow is defined with Java code) while it comes with limitations and lots of gotchas. Always use Flow Framework The very first thing to know is, it's almost impossible to build a SWF application correctly without Flow Framework . Even though the low level SWF RESTful service API is public and available in SDK, for most workflow with parallelism, timer or notification, consider all possibilities of how each event can interlace with another, it's beyond manageable to write correct code with low-level API to cover all use cases. For this matter SWF is quite unique comparing to other thin-client AWS technologies. The SWF flow framework heavily depends on AspectJ for various purposes. If you are not familiar with AspectJ in Eclipse and Maven, this article

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