See: Description
| Class | Description | 
|---|---|
| CronExpression | Representation of a
 crontab expression
 that can calculate the next time it matches. | 
| CronSequenceGenerator | Deprecated as of 5.3, in favor of  CronExpression | 
| CronTrigger | Triggerimplementation for cron expressions. | 
| DelegatingErrorHandlingRunnable | Runnable wrapper that catches any exception or error thrown from its
 delegate Runnable and allows an  ErrorHandlerto handle it. | 
| MethodInvokingRunnable | Adapter that implements the  Runnableinterface as a configurable
 method invocation based on Spring's MethodInvoker. | 
| PeriodicTrigger | A trigger for periodic task execution. | 
| ScheduledMethodRunnable | Variant of  MethodInvokingRunnablemeant to be used for processing
 of no-arg scheduled methods. | 
| SimpleTriggerContext | Simple data holder implementation of the  TriggerContextinterface. | 
| TaskUtils | Utility methods for decorating tasks with error handling. |