MapChangeEvent (Norconex Commons Lang 2.1.0 API)

java.lang.Object
- com.norconex.commons.lang.map.MapChangeEvent<K,V>

Type Parameters:

K - the type of keys maintained by the map we are observing

V - the type of mapped values

All Implemented Interfaces:

Serializable
```
public class MapChangeEvent<K,V>
extends Object
implements Serializable
```
A event representing a change of values in an Map.

Since:

1.4

Author:

Pascal Essiembre, Pascal Essiembre

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

MapChangeEvent(Map<K,V> source, K key, V oldValue, V newValue)
Creates a new event.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object other)`
`K`	`getKey()`	Gets the key that has is value changed.
`V`	`getNewValue()`	Gets the new value.
`V`	`getOldValue()`	Gets the old value.
`Map<K,V>`	`getSource()`	Gets the source on which the change was applied.
`int`	`hashCode()`
`String`	`toString()`

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

- Constructor Detail
  - MapChangeEvent
```
public MapChangeEvent(Map<K,V> source,
                      K key,
                      V oldValue,
                      V newValue)
```
    Creates a new event.
    
    Parameters:
    
    source - the source on which the change was applied.
    
    key - the key that has is value changed.
    
    oldValue - the old value
    
    newValue - the new value
- Method Detail
  - getSource
```
public Map<K,V> getSource()
```
    Gets the source on which the change was applied.
    
    Returns:
    
    the source
  - getKey
```
public K getKey()
```
    Gets the key that has is value changed.
    
    Returns:
    
    the key
  - getOldValue
```
public V getOldValue()
```
    Gets the old value.
    
    Returns:
    
    old value
  - getNewValue
```
public V getNewValue()
```
    Gets the new value.
    
    Returns:
    
    new value
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - equals
```
public boolean equals(Object other)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object