Recently, I am trying to build an interactive reporting tool that needs to deal with lots of data. The data is not dynamic because it is basically data from historical performance log files. However, the volume of the data is large (over few millions of rows) and I still want my clients to interact with [...]

What is SOA? What is ESB? ESB = Enterprise Service Bus. The definition is flexible, but in general it’s a conduit for messages of multiple, different formats, between application endpoints, over more than one protocol. Mule vs ServiceMix Compared to Mule, the major difference for ServiceMix is its architectural design, which is fundamentally based on [...]

There are some interesting tips I found during the time I work on Flex Programming. I will cover Embedding, Binding, Event Handling, Function Pointer, Mixin and more. I hope these tips will make your life easier when you work on Flex.

Features wanted! To make Flex datagrid completed, I would like to have the following featues. AutoCompleted Search – Locate the data I want quickly if there are too many rows in my grid. Internationalization – Handle currency, number and date format. Data Export – Output the data in csv format, so users can import to [...]

Common Text Processing Commands In our daily life, we deal with lots of data. The data normally is stored in text format for the ease of human to read. With the large amount of data we have, we need ways to deal with it. There are several things we frequently do on the data: Search, [...]

Blocking Queue Behavior Quite often in threaded applications we have a producer-consumer situation where some threads want to add jobs onto a queue, and some other worker threads want to remove jobs from the queue and then execute them. It is quite useful in such circumstances to write a queue which blocks on pop when [...]

Introduction Caching is a crucial performance tuning strategy, especially your system has high read to write ratio. You can perform caching strategy at different levels from client browser cache all the way to disk cache at server side. Lets take a brief look at where we can cache based on the invocation path for a [...]

Push data to client Traditional web application is based on request and response model that information is delivered as a single payload and then immediately close the connection to the client. To keep the client in sync, we normally pull the server periodically. This approach may generate unacceptable load to the server. To solve this [...]

Linux File System Basic Ext3 (successor of Ext2) is the standard file system for Linux: It is robust, fast and suitable for all fields of use. The main difference between them is that Ext3 has a journal that records the pending operations for fast recovery purpose in the event of system crash. This record guarantees [...]

Introduction This article is written on top of the great work that Sébastien Arbogast has done. He has written 3 articles that showed you how to wire up Flex, BlazeDS, Spring, Hibernate and MySQL with Maven as build process. I have included his articles below as your reference. The Flex, Spring, and BlazeDS full stack – [...]