Listeners as Extension Points

The phrase extension point is used in software development to indicate a place in a framework or application where the creators expect users to extend or customize the framework to meet their needs. (You will also hear the word hook used for the same meaning.)

Quartz listeners are a type of extension point in which you, as a Quartz user, can extend the framework and customize it to do new things. This customization takes place within the listener class implementations that we show you how to build in this chapter.

Listeners are not the only extension points in the framework. Along with plug-ins and a few other customization options, listeners provide a simple means of customizing the framework and making it do what you need it to do. Because the extension points for listeners are supported through a publicized interface, you don't have to worry about creating your own branch of the code that then is unsupportable.


Scheduling in the Enterprise

Getting Started with Quartz

Hello, Quartz

Scheduling Jobs

Cron Triggers and More

JobStores and Persistence

Implementing Quartz Listeners

Using Quartz Plug-Ins

Using Quartz Remotely

Using Quartz with J2EE

Clustering Quartz

Quartz Cookbook

Quartz and Web Applications

Using Quartz with Workflow

Appendix A. Quartz Configuration Reference



Quartz Job Scheduling Framework(c) Building Open Source Enterprise Applications
Quartz Job Scheduling Framework: Building Open Source Enterprise Applications
ISBN: 0131886703
EAN: 2147483647
Year: N/A
Pages: 148

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