Quartz Job Scheduling Framework by By

Author:By
Language: eng
Format: epub
ISBN: 0-13-188670-3
Publisher: Prentice Hall

Chapter 8. Using Quartz Plug-Ins

The Quartz framework offers several ways to extend the capabilities of the platform. By using various "hooks" (commonly referred to as extension points), Quartz becomes very easy to extend and customize to suit your needs. One of the easiest methods for extending the framework is to use Quartz plug-ins. This chapter looks at how to use the plug-in mechanism to make Quartz go where no Quartz user has gone before.

What Is a Plug-In?

If you have used other open source frameworks such as Apache Struts, you're already familiar with concept of plug-ins and their use. Quite simply, a Quartz plug-in is a Java class that implements the org.quartz.spi.SchedulerPlugin interface and is registered as a plug-in with the Scheduler. The plug-in interface contains three methods and is shown in Listing 8.1.

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