The persistent JobStores in Quartz are sometimes referred to as JDBC JobStores because of their unmistaken dependency on a JDBC driver to communicate with a relational database. The persistent JobStores use many of the features of JDBC, including support for transactions, locking, and isolation levels, just to name a few.
Because the persistent JobStores in Quartz are dependent on JDBC, you must ensure that your platform supports JDBC.
What if my Database Doesn t Support JDBC?
If your database doesn't support JDBC, you most certainly have a problem. You're not completely out of luck, but you have a lot more work ahead of you. You would be better off switching to one of the supported database platforms. If your database doesn't support JDBC, you'll need to create a new implementation that implements the JobStore interface. You might want to check with users on the Quartz user forum to see if anyone has already done the work and is willing to share codeor at least an approach.
Databases Supported by Persistent JobStores
The persistent JobStores in Quartz are designed to be used with the following database platforms:
Persistent Storage in a Stand-Alone Environment
The JobStoreTX class is designed to be used in a stand-alone environment. By "stand-alone," we mean an environment in which there is no transactional integration with an application container. This doesn't mean that you can't use the JobStoreTX within a containerjust that it's not designed to have its transactions managed by the container. The difference is whether Quartz transactions should participate in the transaction of the container.
Persistent Storage in an Application Container
The JobStoreCMT class is designed to be used when you want the application container to manage the transactions for your JobStore and those transactions should participate within the transactional boundaries that are managed by the container. This should be obvious from the "Container Managed Transactions (CMT)" in the name.
Scheduling in the Enterprise
Getting Started with Quartz
Cron Triggers and More
JobStores and Persistence
Implementing Quartz Listeners
Using Quartz Plug-Ins
Using Quartz Remotely
Using Quartz with J2EE
Quartz and Web Applications
Using Quartz with Workflow
Appendix A. Quartz Configuration Reference