SchedulerConfigCache (Storm 2.7.1 API)

java.lang.Object
- org.apache.storm.scheduler.utils.SchedulerConfigCache<T>

```
public class SchedulerConfigCache<T>
extends Object
```
A utility class to cache the scheduler config and refresh after the cache expires.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static interface SchedulerConfigCache.Reloadable<T>

Constructor Summary

Constructors
Constructor Description

SchedulerConfigCache(Map<String,Object> conf, SchedulerConfigCache.Reloadable<T> reloader)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`T`	`get()`	Get the scheduler config from cache.
`void`	`prepare()`
`void`	`refresh()`	Refresh the config only after the cache expires.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - SchedulerConfigCache
```
public SchedulerConfigCache(Map<String,Object> conf,
                            SchedulerConfigCache.Reloadable<T> reloader)
```
- Method Detail
  - prepare
```
public void prepare()
```
  - refresh
```
public void refresh()
```
    Refresh the config only after the cache expires. This is not thread-safe and should only be called in single thread.
  - get
```
public T get()
```
    Get the scheduler config from cache. This method is thead-safe and can be called in multiple threads.
    
    Returns:
    
    the scheduler config