Package org.teiid.core.util

Class LRUCache<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

java.util.LinkedHashMap<K,V>

org.teiid.core.util.LRUCache<K,V>

All Implemented Interfaces:

Serializable, Cloneable, Map<K,V>

public class LRUCache<K,V>
extends LinkedHashMap<K,V>

This class replaces a verbose legacy implementation of LRUCaching.

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>

Field Summary

Fields

Modifier and Type	Field	Description
protected static int	DEFAULT_SPACELIMIT	Default amount of space in the cache
protected int	maxSize

Constructor Summary

Constructors

Constructor	Description
LRUCache()	Creates a new cache.
LRUCache(int maxSize)

Method Summary

Modifier and Type	Method	Description
int	getSpaceLimit()
protected boolean	removeEldestEntry(Map.Entry<K,V> eldest)

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

Field Detail

DEFAULT_SPACELIMIT

protected static final int DEFAULT_SPACELIMIT

Default amount of space in the cache

See Also:

Constant Field Values

maxSize

protected int maxSize

Constructor Detail

LRUCache

public LRUCache()

Creates a new cache. Size of cache is defined by DEFAULT_SPACELIMIT.

LRUCache

public LRUCache(int maxSize)

Method Detail

removeEldestEntry

protected boolean removeEldestEntry(Map.Entry<K,V> eldest)

Overrides:

removeEldestEntry in class LinkedHashMap<K,V>

getSpaceLimit

public int getSpaceLimit()