NoOpCacheEventListener

All Implemented Interfaces:

com.facebook.cache.common.CacheEventListener
```
public class NoOpCacheEventListener
 implements CacheEventListener
                    
```
Implementation of CacheEventListener that doesn't do anything.

Method Summary

Modifier and Type	Method	Description
`static synchronized NoOpCacheEventListener`	`getInstance()`
`void`	`onHit(CacheEvent cacheEvent)`	Triggered by a cache hit.
`void`	`onMiss(CacheEvent cacheEvent)`	Triggered by a cache miss for the given key.
`void`	`onWriteAttempt(CacheEvent cacheEvent)`	Triggered at the start of the process to save a resource in cache.
`void`	`onWriteSuccess(CacheEvent cacheEvent)`	Triggered after a resource has been successfully written to cache.
`void`	`onReadException(CacheEvent cacheEvent)`	Triggered if a cache hit was attempted but an exception was thrown trying to read the resourcefrom storage.
`void`	`onWriteException(CacheEvent cacheEvent)`	Triggered if a cache write was attempted but an exception was thrown trying to write theexception to storage.
`void`	`onEviction(CacheEvent cacheEvent)`	Triggered by an eviction from cache.
`void`	`onCleared()`	Triggered by a full cache clearance.

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

- Method Detail
  - getInstance
```
 static synchronized NoOpCacheEventListener getInstance()
```
  - onHit
```
 void onHit(CacheEvent cacheEvent)
```
    Triggered by a cache hit.
  - onMiss
```
 void onMiss(CacheEvent cacheEvent)
```
    Triggered by a cache miss for the given key.
  - onWriteAttempt
```
 void onWriteAttempt(CacheEvent cacheEvent)
```
    Triggered at the start of the process to save a resource in cache.
  - onWriteSuccess
```
 void onWriteSuccess(CacheEvent cacheEvent)
```
    Triggered after a resource has been successfully written to cache.
  - onReadException
```
 void onReadException(CacheEvent cacheEvent)
```
    Triggered if a cache hit was attempted but an exception was thrown trying to read the resourcefrom storage.
  - onWriteException
```
 void onWriteException(CacheEvent cacheEvent)
```
    Triggered if a cache write was attempted but an exception was thrown trying to write theexception to storage.
  - onEviction
```
 void onEviction(CacheEvent cacheEvent)
```
    Triggered by an eviction from cache.
  - onCleared
```
 void onCleared()
```
    Triggered by a full cache clearance.