Quartz Job Scheduling Framework

Preface

I first came across Quartz in 2004 when I was looking for a job scheduler while designing a medical claims-processing engine. I was initially skeptical about the framework because it seemed to so exactly fit what I was looking for. Very quickly that skepticism turned into kidlike joy as I realized what I had stumbled upon.

During the course of writing other books and articles and while doing the presentation circuit at various Java User’s Groups across the country, I had not once come across the Quartz framework. I probably had looked at and researched hundreds—possibly even thousands—of other open source frameworks. I was just dumbfounded by how this framework could have escaped my attention and the detection of the user community.