PropCacheCaffeineImpl (Apache Accumulo Server Base 2.1.0 API)

java.lang.Object
- org.apache.accumulo.server.conf.store.impl.PropCacheCaffeineImpl

All Implemented Interfaces:: PropCache

public class PropCacheCaffeineImpl
extends Object
implements PropCache

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class PropCacheCaffeineImpl.Builder

Field Summary

Fields
Modifier and Type Field Description

static TimeUnit BASE_TIME_UNITS

static int EXPIRE_MIN

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`@Nullable VersionedProperties`	`get(PropStoreKey<?> propStoreKey)`
`@Nullable VersionedProperties`	`getIfCached(PropStoreKey<?> propStoreKey)`	Retrieve the version properties if present in the cache, otherwise return null.
`PropStoreMetrics`	`getMetrics()`
`void`	`remove(PropStoreKey<?> propStoreKey)`
`void`	`removeAll()`

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

- Field Detail
  - BASE_TIME_UNITS
```
public static final TimeUnit BASE_TIME_UNITS
```
  - EXPIRE_MIN
```
public static final int EXPIRE_MIN
```
    See Also:
    
    Constant Field Values
- Method Detail
  - getMetrics
```
public PropStoreMetrics getMetrics()
```
  - get
```
public @Nullable VersionedProperties get(PropStoreKey<?> propStoreKey)
```
    Specified by:
    
    get in interface PropCache
  - remove
```
public void remove(PropStoreKey<?> propStoreKey)
```
    Specified by:
    
    remove in interface PropCache
  - removeAll
```
public void removeAll()
```
    Specified by:
    
    removeAll in interface PropCache
  - getIfCached
```
public @Nullable VersionedProperties getIfCached(PropStoreKey<?> propStoreKey)
```
    Retrieve the version properties if present in the cache, otherwise return null. This prevents caching the properties and should be used when properties will be updated and then committed to the backend store. The process that is updating the values may not need them for additional processing so there is no reason to store them in the cache at this time. If they are used, a normal cache get will load the property into the cache.
    
    Parameters:
    
    propStoreKey - the property id
    
    Returns:
    
    the version properties if cached, otherwise return null.