MostRecentlyUsedMap (Wicket Util 9.0.0 API)

java.lang.Object
- java.util.AbstractMap<K,V>
- - java.util.HashMap<K,V>
  - - java.util.LinkedHashMap<K,V>
    - - org.apache.wicket.util.collections.MostRecentlyUsedMap<K,V>

Type Parameters:

K - key type

V - value type

All Implemented Interfaces:

Serializable, Cloneable, Map<K,V>
```
public class MostRecentlyUsedMap<K,V>
extends LinkedHashMap<K,V>
```
Holds a map of most recently used items of a given maximum size. Old entries are expired when the map exceeds that maximum size.

Author:

Jonathan Locke

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>
- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  protected V removedValue
  Value most recently removed from map
- Constructor Summary
  
  Constructors
  Constructor Description
  
  MostRecentlyUsedMap(int maxEntries)
  Constructor
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  V getRemovedValue()
  
  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
  - removedValue
```
protected V removedValue
```
    Value most recently removed from map
- Constructor Detail
  - MostRecentlyUsedMap
```
public MostRecentlyUsedMap(int maxEntries)
```
    Constructor
    
    Parameters:
    
    maxEntries - Maximum number of entries allowed in the map
- Method Detail
  - getRemovedValue
```
public V getRemovedValue()
```
    Returns:
    
    Returns the removedValue.
  - removeEldestEntry
```
protected boolean removeEldestEntry(Map.Entry<K,V> eldest)
```
    Overrides:
    
    removeEldestEntry in class LinkedHashMap<K,V>
    
    See Also:
    
    LinkedHashMap.removeEldestEntry(java.util.Map.Entry)