org.apache.shenyu.common.cache

Class MemorySafeWindowTinyLFUMap<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

org.apache.shenyu.common.cache.MemorySafeWindowTinyLFUMap<K,V>

All Implemented Interfaces:

java.io.Serializable, java.util.Map<K,V>

@ThreadSafe
public class MemorySafeWindowTinyLFUMap<K,V>
extends java.util.AbstractMap<K,V>
implements java.io.Serializable

The differences between this class and MemorySafeLRUMap is that this class is thread safe, and it use WindowTinyLFU algorithm provided by caffeine which is better than LRU algorithm.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface java.util.Map

java.util.Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
MemorySafeWindowTinyLFUMap(int maxFreeMemory, int initialSize)
MemorySafeWindowTinyLFUMap(int maxFreeMemory, int initialSize, long expireAfterWrite, long maximumSize)

Method Summary

Modifier and Type	Method and Description
void	cleanUp() clean invalidated cache now.
java.util.Set<java.util.Map.Entry<K,V>>	entrySet()
boolean	equals(java.lang.Object o)
V	get(java.lang.Object key)
int	hashCode()
void	invalidate() invalidate coldest cache now.
boolean	isFull() whether to full.
V	put(K key, V value)
V	remove(java.lang.Object key)

Methods inherited from class java.util.AbstractMap

clear, clone, containsKey, containsValue, isEmpty, keySet, putAll, size, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Detail

MemorySafeWindowTinyLFUMap

public MemorySafeWindowTinyLFUMap(int maxFreeMemory,
                                  int initialSize)

MemorySafeWindowTinyLFUMap

public MemorySafeWindowTinyLFUMap(int maxFreeMemory,
                                  int initialSize,
                                  long expireAfterWrite,
                                  long maximumSize)

Method Detail

get

public V get(java.lang.Object key)

Specified by:

get in interface java.util.Map<K,V>

Overrides:

get in class java.util.AbstractMap<K,V>

put

public V put(K key,
             V value)

Specified by:

put in interface java.util.Map<K,V>

Overrides:

put in class java.util.AbstractMap<K,V>

remove

public V remove(java.lang.Object key)

Specified by:

remove in interface java.util.Map<K,V>

Overrides:

remove in class java.util.AbstractMap<K,V>

entrySet

public java.util.Set<java.util.Map.Entry<K,V>> entrySet()

Specified by:

entrySet in interface java.util.Map<K,V>

Specified by:

entrySet in class java.util.AbstractMap<K,V>

cleanUp

public void cleanUp()

clean invalidated cache now.

invalidate

public void invalidate()

invalidate coldest cache now.

isFull

public boolean isFull()

whether to full.

Returns:

true if it's full

equals

public boolean equals(java.lang.Object o)

Specified by:

equals in interface java.util.Map<K,V>

Overrides:

equals in class java.util.AbstractMap<K,V>

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Map<K,V>

Overrides:

hashCode in class java.util.AbstractMap<K,V>