PackedMap (central-repository 4.0.0 API)

java.lang.Object
- ej.basictool.map.AbstractPackedMap<K,V>
- - ej.basictool.map.PackedMap<K,V>

Type Parameters:

K - the type of keys maintained by this map.

V - the type of mapped values.
```
public class PackedMap<K,V>
extends AbstractPackedMap<K,V>
```
This class implements the AbstractPackedMap class, using object-equality when comparing keys. In other words, in an PackedMap, two keys k1 and k2 are considered equal if and only if (k1.equals(k2)) (with k1 not null for sure as long as this map does not accept null keys).

Field Summary
- Fields inherited from class ej.basictool.map.AbstractPackedMap
  keysValues

Constructor Summary

Constructors
Constructor Description

PackedMap()
Constructs an empty map.

PackedMap(PackedMap<K,V> map)
Constructs a map with the same mappings as the specified map.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Object`	`clone()`	Returns a shallow copy of this map instance: the keys and values themselves are not cloned.
`protected boolean`	`isSame(Object key, Object candidateKey)`	Checks whether two keys are equal or not.

Methods inherited from class ej.basictool.map.AbstractPackedMap
clear, containsKey, containsUnwrappedKey, containsValue, equals, get, getKeyHashCode, getWrappedKeyHashCode, hashCode, isEmpty, keySet, put, remove, size, unwrapKey, values, wrapKey

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - PackedMap
```
public PackedMap()
```
    Constructs an empty map.
  - PackedMap
```
public PackedMap(PackedMap<K,V> map)
```
    Constructs a map with the same mappings as the specified map.
    
    Parameters:
    
    map - the map whose mappings are to be placed in this map.
    
    Throws:
    
    NullPointerException - if the specified map is null.
- Method Detail
  - clone
```
public Object clone()
```
    Description copied from class: AbstractPackedMap
    
    Returns a shallow copy of this map instance: the keys and values themselves are not cloned.
    
    Specified by:
    
    clone in class AbstractPackedMap<K,V>
    
    Returns:
    
    a shallow copy of this map
    
    See Also:
    
    Cloneable
  - isSame
```
protected boolean isSame(Object key,
                         @Nullable
                         Object candidateKey)
```
    Description copied from class: AbstractPackedMap
    
    Checks whether two keys are equal or not. The key must not be null.
    
    Specified by:
    
    isSame in class AbstractPackedMap<K,V>
    
    Parameters:
    
    key - the key searched in the map.
    
    candidateKey - the key in the map to compare with. Can be null if and only if AbstractPackedMap.unwrapKey(Object) implementation can return null.
    
    Returns:
    
    true if the two keys are equal, false otherwise.