Scheduler (cache2k API 2.6.1.Final API)

All Superinterfaces:

Executor
```
public interface Scheduler
extends Executor
```
Scheduler to run timer tasks, e.g. for expiry and refresh. A cache with expiry typically inserts one task in the scheduler to execute pending expiry or refresh jobs. A task is usually not executed more often then one second per cache Cache2kBuilder.timerLag(long, TimeUnit) ). Per task execution all pending actions per cache are processed. The execution of tasks should run on a different executor to improve scalability when many caches with expiry run in one runtime.
An instance may implement AutoCloseable if resources need to be cleaned up.

Author:

Jens Wilke

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`execute(Runnable command)`	Run a task immediately, usually via the common ForkJoinPool.
`void`	`schedule(Runnable runnable, long delayMillis)`	Schedule the task to be run after a given delay.

- Method Detail
  - schedule
```
void schedule(Runnable runnable,
              long delayMillis)
```
    Schedule the task to be run after a given delay. This uses always millisecond resolution. A negative or zero duration means immediate execution is requested.
    
    Throws:
    
    RejectedExecutionException - if scheduler was closed
  - execute
```
void execute(Runnable command)
```
    Run a task immediately, usually via the common ForkJoinPool. This is used for tasks that are due in the past and should execute as soon as possible. This is intended to run on the same executor then the scheduled tasks.
    
    Specified by:
    
    execute in interface Executor