InstrumentingCache (apache-cassandra API)

java.lang.Object
- org.apache.cassandra.cache.InstrumentingCache<K,V>

Direct Known Subclasses:

AutoSavingCache
```
public class InstrumentingCache<K,V>
extends java.lang.Object
```
Wraps an ICache in requests + hits tracking.

Constructor Summary

Constructors
Constructor Description

InstrumentingCache(java.lang.String type, ICache<K,V> map)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clear()`
`boolean`	`containsKey(K key)`
`V`	`get(K key)`
`long`	`getCapacity()`
`V`	`getInternal(K key)`
`CacheMetrics`	`getMetrics()`
`java.util.Iterator<K>`	`hotKeyIterator(int n)`
`java.util.Iterator<K>`	`keyIterator()`
`void`	`put(K key, V value)`
`boolean`	`putIfAbsent(K key, V value)`
`void`	`remove(K key)`
`boolean`	`replace(K key, V old, V value)`
`void`	`setCapacity(long capacity)`
`int`	`size()`
`long`	`weightedSize()`

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

Constructor Detail

InstrumentingCache

public InstrumentingCache(java.lang.String type,
                          ICache<K,V> map)

Method Detail

put

public void put(K key,
                V value)

putIfAbsent

public boolean putIfAbsent(K key,
                           V value)

replace

public boolean replace(K key,
                       V old,
                       V value)

get
```
public V get(K key)
```

getInternal
```
public V getInternal(K key)
```

remove
```
public void remove(K key)
```

getCapacity
```
public long getCapacity()
```

setCapacity

public void setCapacity(long capacity)

size
```
public int size()
```

weightedSize
```
public long weightedSize()
```

clear
```
public void clear()
```

keyIterator

public java.util.Iterator<K> keyIterator()

hotKeyIterator

public java.util.Iterator<K> hotKeyIterator(int n)

containsKey
```
public boolean containsKey(K key)
```

getMetrics
```
public CacheMetrics getMetrics()
```