LinkedIdentityHashMap (Hibernate Javadocs)

java.lang.Object
- java.util.AbstractMap<K,V>
- - java.util.IdentityHashMap<K,V>
  - - org.hibernate.internal.util.collections.LinkedIdentityHashMap<K,V>

All Implemented Interfaces:

Serializable, Cloneable, Map<K,V>
```
public class LinkedIdentityHashMap<K,V>
extends IdentityHashMap<K,V>
```
Utility IdentityHashMap implementation that maintains predictable iteration order, with special care for keys iteration efficiency, and uses reference equality (i.e. ==) in place of object-equality when comparing keys.
Note that the keySet(), values() and entrySet() methods for this class return unmodifiable collections and are only meant for iteration.

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

LinkedIdentityHashMap()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clear()`
`Object`	`clone()`
`Set<Map.Entry<K,V>>`	`entrySet()`
`Set<K>`	`keySet()`
`V`	`put(K key, V value)`
`V`	`remove(Object key)`
`boolean`	`remove(Object key, Object value)`
`Collection<V>`	`values()`

Methods inherited from class java.util.IdentityHashMap
containsKey, containsValue, equals, forEach, get, hashCode, isEmpty, putAll, replaceAll, size

Methods inherited from class java.util.AbstractMap
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, getOrDefault, merge, putIfAbsent, replace, replace

- Constructor Detail
  - LinkedIdentityHashMap
```
public LinkedIdentityHashMap()
```
- Method Detail
  - put
```
public V put(K key,
             V value)
```
    Specified by:
    
    put in interface Map<K,V>
    
    Overrides:
    
    put in class IdentityHashMap<K,V>
  - remove
```
public V remove(Object key)
```
    Specified by:
    
    remove in interface Map<K,V>
    
    Overrides:
    
    remove in class IdentityHashMap<K,V>
  - remove
```
public boolean remove(Object key,
                      Object value)
```
  - clear
```
public void clear()
```
    Specified by:
    
    clear in interface Map<K,V>
    
    Overrides:
    
    clear in class IdentityHashMap<K,V>
  - keySet
```
public Set<K> keySet()
```
    Specified by:
    
    keySet in interface Map<K,V>
    
    Overrides:
    
    keySet in class IdentityHashMap<K,V>
  - values
```
public Collection<V> values()
```
    Specified by:
    
    values in interface Map<K,V>
    
    Overrides:
    
    values in class IdentityHashMap<K,V>
  - entrySet
```
public Set<Map.Entry<K,V>> entrySet()
```
    Specified by:
    
    entrySet in interface Map<K,V>
    
    Overrides:
    
    entrySet in class IdentityHashMap<K,V>
  - clone
```
public Object clone()
```
    Overrides:
    
    clone in class IdentityHashMap<K,V>