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java.lang.Objectcom.caucho.util.LongKeyLruCache<V>
public class LongKeyLruCache<V>
Fixed length cache with a LRU replacement policy. If cache items implement CacheListener, they will be informed when they're removed from the cache.
LongKeyLruCache is synchronized.
Constructor Summary | |
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LongKeyLruCache(int initialCapacity)
Create the LRU cache with a specific capacity. |
Method Summary | |
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void |
clear()
Clears the cache |
LongKeyLruCache<V> |
ensureCapacity(int newCapacity)
Ensure the cache can contain the given value. |
V |
get(long key)
Get an item from the cache and make it most recently used. |
int |
getCapacity()
Returns the capacity. |
long |
getHitCount()
Returns the hit count. |
long |
getMissCount()
Returns the miss count. |
V |
put(long key,
V value)
Puts a new item in the cache. |
V |
putIfAbsent(long key,
V value)
Puts a new item in the cache. |
V |
putIfNew(long key,
V value)
Puts a new item in the cache. |
V |
remove(long key)
Removes an item from the cache |
boolean |
removeTail()
Remove the last item in the LRU |
LongKeyLruCache<V> |
setCapacity(int newCapacity)
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int |
size()
Returns the current number of entries in the cache. |
java.util.Iterator<V> |
values()
Returns the values in the cache |
java.util.Iterator<V> |
values(java.util.Iterator<V> oldIter)
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public LongKeyLruCache(int initialCapacity)
initialCapacity
- minimum capacity of the cacheMethod Detail |
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public int size()
public int getCapacity()
public LongKeyLruCache<V> ensureCapacity(int newCapacity)
public LongKeyLruCache<V> setCapacity(int newCapacity)
public void clear()
public V get(long key)
key
- key to lookup the item
public V put(long key, V value)
key
- key to store datavalue
- value to be stored
public V putIfNew(long key, V value)
key
- key to store datavalue
- value to be stored
public V putIfAbsent(long key, V value)
key
- key to store datavalue
- value to be stored
public boolean removeTail()
public V remove(long key)
key
- the key to remove
public java.util.Iterator<V> values()
public java.util.Iterator<V> values(java.util.Iterator<V> oldIter)
public long getHitCount()
public long getMissCount()
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