0
# Scheduling and Background Tasks
1

2
Quarkus provides cron-like scheduling capabilities with programmatic scheduler access and comprehensive lifecycle event handling for background task management.
3

4
## Scheduling Annotations
5

6
### @Scheduled Annotation
7

8
```java { .api }
9
@Target(ElementType.METHOD)
10
@Retention(RetentionPolicy.RUNTIME)
11
public @interface Scheduled {
12
    String cron() default "";
13
    String every() default "";
14
    long delay() default -1;
15
    TimeUnit delayUnit() default TimeUnit.MILLISECONDS;
16
    String identity() default "";
17
    boolean skipExecutionIf() default false;
18
}
19
```
20

21
Schedules method execution based on cron expressions or intervals.
22

23
### Scheduler Interface
24

25
```java { .api }
26
public interface Scheduler {
27
    void pause();
28
    void resume();  
29
    boolean isRunning();
30
    List<Trigger> getScheduledJobs();
31
}
32
```
33

34
Programmatic scheduler control interface.
35

36
**Usage Example:**
37
```java
38
@ApplicationScoped
39
public class TaskScheduler {
40
    
41
    @Scheduled(every = "30s")
42
    public void performCleanup() {
43
        System.out.println("Performing cleanup task");
44
    }
45
    
46
    @Scheduled(cron = "0 0 2 * * ?")  // Daily at 2 AM
47
    public void generateReports() {
48
        System.out.println("Generating daily reports");
49
    }
50
}
51
```