IdentityMap (The Adobe AEM Quickstart and Web Application. 6.6.0)

java.lang.Object
- java.util.AbstractMap
- - org.apache.commons.collections.map.AbstractHashedMap
  - - org.apache.commons.collections.map.IdentityMap

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.Map, IterableMap
```
public class IdentityMap
extends AbstractHashedMap
implements java.io.Serializable, java.lang.Cloneable
```
A Map implementation that matches keys and values based on == not equals().
This map will violate the detail of various Map and map view contracts. As a general rule, don't compare this map to other maps.
Note that IdentityMap is not synchronized and is not thread-safe. If you wish to use this map from multiple threads concurrently, you must use appropriate synchronization. The simplest approach is to wrap this map using Collections.synchronizedMap(Map). This class may throw exceptions when accessed by concurrent threads without synchronization.

Since:

Commons Collections 3.0

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class java.util.AbstractMap
  java.util.AbstractMap.SimpleEntry<K extends java.lang.Object,V extends java.lang.Object>, java.util.AbstractMap.SimpleImmutableEntry<K extends java.lang.Object,V extends java.lang.Object>
- Nested classes/interfaces inherited from interface java.util.Map
  java.util.Map.Entry<K extends java.lang.Object,V extends java.lang.Object>

Constructor Summary

Constructors
Constructor	Description
`IdentityMap()`	Constructs a new empty map with default size and load factor.
`IdentityMap(int initialCapacity)`	Constructs a new, empty map with the specified initial capacity.
`IdentityMap(int initialCapacity, float loadFactor)`	Constructs a new, empty map with the specified initial capacity and load factor.
`IdentityMap(java.util.Map map)`	Constructor copying elements from another map.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

java.lang.Object clone()
Clones the map without cloning the keys or values.
- Methods inherited from class org.apache.commons.collections.map.AbstractHashedMap
  clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, mapIterator, put, putAll, remove, size, toString, values
- Methods inherited from class java.lang.Object
  getClass, notify, notifyAll, wait, wait, wait
- Methods inherited from interface java.util.Map
  compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

- Constructor Detail
  - IdentityMap
```
public IdentityMap()
```
    Constructs a new empty map with default size and load factor.
  - IdentityMap
```
public IdentityMap(int initialCapacity)
```
    Constructs a new, empty map with the specified initial capacity.
    
    Parameters:
    
    initialCapacity - the initial capacity
    
    Throws:
    
    java.lang.IllegalArgumentException - if the initial capacity is less than one
  - IdentityMap
```
public IdentityMap(int initialCapacity,
                   float loadFactor)
```
    Constructs a new, empty map with the specified initial capacity and load factor.
    
    Parameters:
    
    initialCapacity - the initial capacity
    
    loadFactor - the load factor
    
    Throws:
    
    java.lang.IllegalArgumentException - if the initial capacity is less than one
    
    java.lang.IllegalArgumentException - if the load factor is less than zero
  - IdentityMap
```
public IdentityMap(java.util.Map map)
```
    Constructor copying elements from another map.
    
    Parameters:
    
    map - the map to copy
    
    Throws:
    
    java.lang.NullPointerException - if the map is null
- Method Detail
  - clone
```
public java.lang.Object clone()
```
    Clones the map without cloning the keys or values.
    
    Returns:
    
    a shallow clone