AbstractKeyValue

org.apache.commons.collections4.keyvalue

Class AbstractKeyValue<K,V>

java.lang.Object
- org.apache.commons.collections4.keyvalue.AbstractKeyValue<K,V>

All Implemented Interfaces:

KeyValue<K,V>

Direct Known Subclasses:

AbstractMapEntry, DefaultKeyValue
```
public abstract class AbstractKeyValue<K,V>
extends Object
implements KeyValue<K,V>
```
Abstract pair class to assist with creating KeyValue and Map.Entry implementations.

Since:

3.0

Constructor Summary

Constructors

Modifier	Constructor and Description
`protected`	`AbstractKeyValue(K key, V value)` Constructs a new pair with the specified key and given value.

Method Summary

All Methods

Instance Methods

Concrete Methods
Modifier and Type	Method and Description
`K`	`getKey()` Gets the key from the pair.
`V`	`getValue()` Gets the value from the pair.
`protected K`	`setKey(K key)`
`protected V`	`setValue(V value)`
`String`	`toString()` Gets a debugging String view of the pair.

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

- Constructor Detail
  - AbstractKeyValue
```
protected AbstractKeyValue(K key,
                           V value)
```
    Constructs a new pair with the specified key and given value.
    
    Parameters:
    
    key - the key for the entry, may be null
    
    value - the value for the entry, may be null
- Method Detail
  - getKey
```
public K getKey()
```
    Gets the key from the pair.
    
    Specified by:
    
    getKey in interface KeyValue<K,V>
    
    Returns:
    
    the key
  - setKey
```
protected K setKey(K key)
```
  - getValue
```
public V getValue()
```
    Gets the value from the pair.
    
    Specified by:
    
    getValue in interface KeyValue<K,V>
    
    Returns:
    
    the value
  - setValue
```
protected V setValue(V value)
```
  - toString
```
public String toString()
```
    Gets a debugging String view of the pair.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    a String view of the entry