Class LRUMap<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

java.util.LinkedHashMap<K,V>

com.fasterxml.jackson.dataformat.csv.impl.LRUMap<K,V>

All Implemented Interfaces:

Serializable, Cloneable, Map<K,V>, SequencedMap<K,V>

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

Helper for simple bounded LRU maps used for reusing lookup values.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class AbstractMap

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

Field Summary

Fields

Modifier and Type	Field	Description
protected final int	_maxEntries

Constructor Summary

Constructors

Constructor	Description
LRUMap(int initialEntries, int maxEntries)

Method Summary

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

Methods inherited from class LinkedHashMap

clear, containsValue, entrySet, forEach, get, getOrDefault, keySet, newLinkedHashMap, putFirst, putLast, replaceAll, reversed, sequencedEntrySet, sequencedKeySet, sequencedValues, values

Methods inherited from class HashMap

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

Methods inherited from class AbstractMap

equals, hashCode, toString

Methods inherited from class Object

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

Methods inherited from interface Map

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

Methods inherited from interface SequencedMap

firstEntry, lastEntry, pollFirstEntry, pollLastEntry

Field Details

_maxEntries

protected final int _maxEntries

Constructor Details

LRUMap

public LRUMap(int initialEntries,
 int maxEntries)

Method Details

removeEldestEntry

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

Overrides:

removeEldestEntry in class LinkedHashMap<K,V>