ImmutableEntry (Microsphere :: Java :: Core 0.1.2 API)

java.lang.Object
- io.microsphere.collection.DefaultEntry<K,V>
- - io.microsphere.collection.ImmutableEntry<K,V>

Type Parameters:

K - the type of the key

V - the type of the value

All Implemented Interfaces:

java.util.Map.Entry<K,V>
```
public class ImmutableEntry<K,V>
extends DefaultEntry<K,V>
```
An immutable implementation of Map.Entry that stores a fixed key-value pair.
This class provides a read-only entry suitable for use in immutable maps. Once created, the key and value cannot be changed, and calling setValue(Object) will throw an UnsupportedOperationException.

Example Usage
```
 ImmutableEntry<String, Integer> entry = ImmutableEntry.of("age", 30);
 System.out.println(entry.getKey());   // Output: age
 System.out.println(entry.getValue()); // Output: 30

 // The following line would throw an exception:
 // entry.setValue(25); // throws UnsupportedOperationException
 
```
See Also:

MapUtils.ofEntry(Object, Object), MapUtils.immutableEntry(Object, Object)

Constructor Summary

Constructors
Constructor Description

ImmutableEntry(K key, V value)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static <K,V> ImmutableEntry<K,V>`	`of(K key, V value)`	Create an immutable entry with the specified key and value.
`V`	`setValue(V value)`

Methods inherited from class io.microsphere.collection.DefaultEntry
equals, getKey, getValue, hashCode, toString

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

- Constructor Detail
  - ImmutableEntry
```
public ImmutableEntry(K key,
                      V value)
```
- Method Detail
  - setValue
```
public V setValue(V value)
```
    Specified by:
    
    setValue in interface java.util.Map.Entry<K,V>
    
    Overrides:
    
    setValue in class DefaultEntry<K,V>
  - of
```
public static <K,V> ImmutableEntry<K,V> of(K key,
                                                       V value)
```
    Create an immutable entry with the specified key and value.
    
    Type Parameters:
    
    K - the type of the key
    
    V - the type of the value
    
    Parameters:
    
    key - the key
    
    value - the value
    
    Returns:
    
    an immutable entry with the specified key and value