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Book Overview & Buying
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Table Of Contents
Mastering Application Development with Force.com
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As a companion to batchable interface, the Salesforce platform provides a schedulable interface. Schedulable classes are considered as asynchronous Apex, because the platform merely adds the job to the queue at the scheduled time. It does not promise that the job will actually run at the scheduled time, but it does promises that it will be queued at that time. The actual processing may take place nearly instantaneously, or at some point in the relatively near future, depending on system resource availability. Using the schedulable interface allows you to queue code at specific times or periodic intervals. This can be implemented either through the web user interface, or through apex code. Like the batchable interface, to utilize the schedulable functionality, you must implement the schedulable interface by implementing the execute()method. The execute() method must accept a single variable of the SchedulableContext type. Like it's Batchable cousin, SchedulableContext...
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