Tag Archives: guides

Implementing security in Wicket with visural-wicket

Wicket has a nice mechanism for plugging in security whereby all components (including pages) have three cross-cutting hooks which can be validated by a security rule – Instantiation Render Enable You can build your own security framework using the IAuthorizationStrategy interface … Continue reading

Posted in Java, Software Engineering, Wicket | Tagged guides, open-source, visural-wicket, wicket | Leave a comment

Face Detection in Java – Haar Cascade with JJIL (how-to)

A requirement came up on a recent project to automatically crop displayed profile images of people to just the “face” area for a thumbnail. This seems like a job for a face detection algorithm. Searching for appropriate open-source Java implementations … Continue reading

Posted in Java, Software Engineering | Tagged guides, images, Java, open-source, ui | 26 Comments

Implementing a “Draft Mode” with Apache Wicket Forms

A question came up on wicket-users recently about whether it’s possible to implement a form in Wicket whereby you can bypass the validation temporarily so that users could save prior to submitting the form. Think something along the lines of … Continue reading

Posted in Java, Software Engineering, Wicket | Tagged guides, Java, ui, web, wicket | 3 Comments

Setting Up Memcached As A Windows Service

Memcached is an in-memory, distributed key-value store for random pieces of application data. It is useful for clustering and distributed caching and it (and similar tools) are becoming an increasingly common feature of large Web-based apps. I don’t like Windows … Continue reading

Posted in Software Engineering | Tagged cluster, guides, memcached, servers, windows | Leave a comment