Software Development

Seam's Home object design pattern solves LazyInitializationException and entity manager scope issues.

Real IP addresses hide behind load balancers and proxies - use X-FORWARDED-FOR and the ProxyIPFixer servlet.

Apache proxy blocks RichFaces JavaScript - the ContextRoot/a4j path needs direct access, not load balanced.

Better Java image resizing for thumbnails - higher quality output with improved code based on feedback.

That convenient login redirect? It kills conversations. Here's why and how to fix it.

Oracle exp/imp inflates table sizes - INITIAL extent settings preserve old dimensions even after shrinking.

Drop all Oracle tables easily - generate a SQL script from querying user_tables, then execute it.

Automated image resize, thumbnail generation, and format standardization in Java - the practical way.

Let's say that when a user clicks on something, perhaps selecting something from a DataTable or DataGrid, you want to call some server side code, and then popup a modal panel which needs to show content based on the new state setup by your server side call. In my case I have a DataGrid showing a number of items, and when a user clicks on an item I want to set the current selected item on a Seam component on the server, and then popup a modal panel to display detailed information about the item, and provide the user some actions within the modal panel.

RichFaces wrecks Safari. One config line stops the crashes cold.

Open-source ATG modules for caching, encryption, captcha, and more - ready to integrate.

Batch-updated 1.7 million password hashes? PL/SQL loops with checkpoints beat direct mutations.

Manage cache headers by MIME type and URI pattern in ATG without custom servlet filters.

Eclipse crashes on Leopard? Add one JVM flag. Problem solved.

Getting Quartz scheduling to work with Seam proved tricky - here's what I learned navigating sparse docs and setup gotchas.

The essential pattern for safely updating ATG orders: lock management, transactions, and synchronization explained by an ATG architect.

Adding CAPTCHA protection to Seam forms takes three minutes - here's exactly how, including the build and config changes needed.

ATG's installer remains broken on OS X, but a single config.xml fix bypasses the platform limitations plaguing developers.