TrackedMap

java.lang.Object
- java.util.AbstractMap<K,V>
- - java.util.HashMap
  - - org.onemind.commons.java.datastructure.TrackedMap

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.Map
```
public class TrackedMap
extends java.util.HashMap
```
A map that has it's map values changes tracked. It uses an inner map to keep the unchanged value and itself to track the changes

Version:

$Id: TrackedMap.java,v 1.2 2004/08/26 12:33:16 thlee Exp $ $Name: $

Author:

TiongHiang Lee (thlee@onemindsoft.org)

See Also:

Serialized Form

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

Field Summary

Fields
Modifier and Type Field and Description

private java.util.Map _tracked
the track inner map *

Fields
Modifier and Type	Field and Description
`private java.util.Map`	`_tracked` the track inner map *

Constructor Summary

Constructors
Constructor and Description

TrackedMap()

TrackedMap(int initialCapacity)

TrackedMap(int initialCapacity, float loadFactor)

TrackedMap(java.util.Map map)

Constructors
Constructor and Description
`TrackedMap()`
`TrackedMap(int initialCapacity)`
`TrackedMap(int initialCapacity, float loadFactor)`
`TrackedMap(java.util.Map map)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`clear()`
`void`	`clearChanges()` Clear all the changes
`boolean`	`containsKey(java.lang.Object key)`
`boolean`	`containsValue(java.lang.Object value)`
`java.util.Set`	`entrySet()`
`java.lang.Object`	`get(java.lang.Object key)`
`java.util.Set`	`getChangedKeySet()` Return the key set of changed values
`boolean`	`hasChanges()` Return whether this map has been changes
`boolean`	`isEmpty()`
`java.util.Set`	`keySet()`
`void`	`makeUpToDate()` Make this map as up-to-date.
`java.lang.Object`	`remove(java.lang.Object key)`
`int`	`size()`
`java.util.Collection`	`values()`

Methods inherited from class java.util.HashMap
clone, compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, put, putAll, putIfAbsent, remove, replace, replace, replaceAll

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
equals, hashCode

- Field Detail
  - _tracked
```
private java.util.Map _tracked
```
    the track inner map *
- Constructor Detail
  - TrackedMap
```
public TrackedMap()
```
  - TrackedMap
```
public TrackedMap(int initialCapacity)
```
  - TrackedMap
```
public TrackedMap(int initialCapacity,
                  float loadFactor)
```
  - TrackedMap
```
public TrackedMap(java.util.Map map)
```
- Method Detail
  - hasChanges
```
public boolean hasChanges()
```
    Return whether this map has been changes
    
    Returns:
    
    true if it has been changed
  - getChangedKeySet
```
public java.util.Set getChangedKeySet()
```
    Return the key set of changed values
    
    Returns:
    
    the key set
  - get
```
public java.lang.Object get(java.lang.Object key)
```
    Specified by:
    
    get in interface java.util.Map
    
    Overrides:
    
    get in class java.util.HashMap
  - makeUpToDate
```
public void makeUpToDate()
```
    Make this map as up-to-date.
  - clearChanges
```
public void clearChanges()
```
    Clear all the changes
  - clear
```
public void clear()
```
    Specified by:
    
    clear in interface java.util.Map
    
    Overrides:
    
    clear in class java.util.HashMap
  - containsKey
```
public boolean containsKey(java.lang.Object key)
```
    Specified by:
    
    containsKey in interface java.util.Map
    
    Overrides:
    
    containsKey in class java.util.HashMap
  - containsValue
```
public boolean containsValue(java.lang.Object value)
```
    Specified by:
    
    containsValue in interface java.util.Map
    
    Overrides:
    
    containsValue in class java.util.HashMap
  - entrySet
```
public java.util.Set entrySet()
```
    Specified by:
    
    entrySet in interface java.util.Map
    
    Overrides:
    
    entrySet in class java.util.HashMap
  - isEmpty
```
public boolean isEmpty()
```
    Specified by:
    
    isEmpty in interface java.util.Map
    
    Overrides:
    
    isEmpty in class java.util.HashMap
  - keySet
```
public java.util.Set keySet()
```
    Specified by:
    
    keySet in interface java.util.Map
    
    Overrides:
    
    keySet in class java.util.HashMap
  - remove
```
public java.lang.Object remove(java.lang.Object key)
```
    Specified by:
    
    remove in interface java.util.Map
    
    Overrides:
    
    remove in class java.util.HashMap
  - size
```
public int size()
```
    Specified by:
    
    size in interface java.util.Map
    
    Overrides:
    
    size in class java.util.HashMap
  - values
```
public java.util.Collection values()
```
    Specified by:
    
    values in interface java.util.Map
    
    Overrides:
    
    values in class java.util.HashMap

Class TrackedMap

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

Nested classes/interfaces inherited from interface java.util.Map

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.util.HashMap

Methods inherited from class java.util.AbstractMap

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Map

Field Detail

_tracked

Constructor Detail

TrackedMap

TrackedMap

TrackedMap

TrackedMap

Method Detail

hasChanges

getChangedKeySet

get

makeUpToDate

clearChanges

clear

containsKey

containsValue

entrySet

isEmpty

keySet

remove

size

values