Charles Lee is co-founder and vice-president of engineering of Hyperic. Prior to co-founding Hyperic, Lee was a senior software engineer at Covalent. There, he built Covalent's configuration management product for Apache (CMP), and he spearheaded and architected the application management software (CAM). Before Covalent, Lee developed a document management system for retail store build-outs based on open-source technology at WiseConnect. Lee also held senior engineering position at Hewlett-Packard, where he was instrumental in developing print drivers for network LaserJets for the Asian market, as well as developing the UI framework used for LaserJets for all markets. Lee also developed the first GUI printer configuration framework for AutoCAD while a senior engineer at Autodesk. Lee was an early engineer at Backflip, where he created the document publishing system for the website based on mod_perl.
Lee received his BS in Computer Science and BA in Chemistry with honors from the University of Washington.
The hope of using any persistence framework is absolute database
independence. Database independence means that you can focus on your job as
an application developer and not a DBA. However, no framework can fully make
this claim. There's much more to running an application on a database than
simply issuing compatible SQL queries and getting back the query results as
expected. In my last article, I detailed the process by which we converted
existing Enterprise Java Beans 2 (EJB2) Entity beans to Hibernate Plain Old
Java Objects (POJOs). This article is less about our conversion process and
more about the tools and methods we chose to work with for the Hibernate
implementation and the backend databases (Oracle and PostgreSQL) supported by
Hyperic HQ.
Creating the Databas... (more)
Migrating EJB 2.0 entity beans to Hibernate POJOs is pretty straightforward.
Like many applications, all of the data for HQ is stored in the database, and
we need to map from the underlying data store to an object-oriented view. In
EJB 2.0, you would model that data with entity beans. An entity bean is
created and found through the Home interface, and its fields are modified
through its ... (more)
In late 2002, Javier Soltero, Doug MacEachern, Ryan Morgan, Jon Travis, and I
(the eventual co-founders of Hyperic) began designing and architecting an
application management system that was to become Hyperic HQ. We wanted it to
be the management system that bridged the gap between open source and
commercial applications and, furthermore, we wanted it to use, be built on,
and deployed to... (more)
Charles Lee is co-founder and vice-president of engineering of Hyperic. Prior to co-founding Hyperic, Lee was a senior software engineer at Covalent. There, he built Covalent's configuration management product for Apache (CMP), and he spearheaded and architected the application management software (CAM). Before Covalent, Lee developed a document management system for retail store build-outs based on open-source technology at WiseConnect. Lee also held senior engineering position at Hewlett-Packard, where he was instrumental in developing print drivers for network LaserJets for the Asian market, as well as developing the UI framework used for LaserJets for all markets. Lee also developed the first GUI printer configuration framework for AutoCAD while a senior engineer at Autodesk. Lee was an early engineer at Backflip, where he created the document publishing system for the website based on mod_perl.
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