Package es.bsc.dataclay.util.structs

Class CacheLinkedHashMap<A,B>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

java.util.LinkedHashMap<A,B>

es.bsc.dataclay.util.structs.CacheLinkedHashMap<A,B>

Type Parameters:

A - Key type

B - Value type

All Implemented Interfaces:

Serializable, Cloneable, Map<A,B>

public class CacheLinkedHashMap<A,B>
extends LinkedHashMap<A,B>

This class represents a LRU cache.

See Also:

Serialized Form

Nested Class Summary

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

AbstractMap.SimpleEntry<K extends Object,V extends Object>, AbstractMap.SimpleImmutableEntry<K extends Object,V extends Object>

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

Map.Entry<K extends Object,V extends Object>

Constructor Summary

Constructors

Constructor	Description
CacheLinkedHashMap(int theMaxEntries, float loadFactor, boolean order)	Constructor

Method Summary

Modifier and Type	Method	Description
protected boolean	removeEldestEntry(Map.Entry<A,B> eldest)	Returns true if this LruCache has more entries than the maximum specified when it was created.This method does not modify the underlying Map; it relies on the implementation of LinkedHashMap to do that, but that behavior is documented in the JavaDoc for LinkedHashMap.

Methods inherited from class java.util.LinkedHashMap

clear, containsValue, entrySet, forEach, get, getOrDefault, keySet, replaceAll, values

Methods inherited from class java.util.HashMap

clone, compute, computeIfAbsent, computeIfPresent, containsKey, isEmpty, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, size

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, containsKey, equals, hashCode, isEmpty, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, size

Constructor Detail

CacheLinkedHashMap

public CacheLinkedHashMap(int theMaxEntries,
                          float loadFactor,
                          boolean order)

Constructor

Parameters:

theMaxEntries - Max entries

loadFactor - Load factor

order - Indicates order

Method Detail

removeEldestEntry

protected final boolean removeEldestEntry(Map.Entry<A,B> eldest)

Returns true if this LruCache has more entries than the maximum specified when it was created.This method does not modify the underlying Map; it relies on the implementation of LinkedHashMap to do that, but that behavior is documented in the JavaDoc for LinkedHashMap.

Overrides:

removeEldestEntry in class LinkedHashMap<A,B>

Parameters:

eldest - the Entry in question; this implementation doesn't care what it is, since the implementation is only dependent on the size of the cache

Returns:

true if the oldest

See Also:

LinkedHashMap.removeEldestEntry(Map.Entry)