Package overit.geocallapp.utilities.datatype

Class MapUtils

java.lang.Object

overit.geocallapp.utilities.datatype.MapUtils

public class MapUtils
extends Object

Utility class providing enhanced map operations with null safety and additional functionality beyond standard Java Map methods.

This class provides utility methods for safe map operations, including retrieval of values with default fallbacks and enhanced type safety.

Since:

1.0

Constructor Summary

Constructors

Constructor	Description
MapUtils()

Method Summary

Modifier and Type	Method	Description
static <K, V> V	getOrElse(Map<K,V> map, K key, V defaultValue)	Retrieves a value from a map or returns a default value if the key is not found or maps to null.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

MapUtils

public MapUtils()

Method Details

getOrElse

public static <K,
V> V getOrElse(Map<K,V> map,
 K key,
 V defaultValue)

Retrieves a value from a map or returns a default value if the key is not found or maps to null.

This method provides a functional programming style alternative to Map.getOrDefault(Object, Object) with additional validation to ensure non-null parameters.

Type Parameters:

K - the type of keys maintained by the map

V - the type of mapped values

Parameters:

map - the map from which to retrieve the value (must not be null)

key - the key whose associated value is to be returned (must not be null)

defaultValue - the default value to return if the key is not found or maps to null

Returns:

the value associated with the key, or the default value if the key is not found or maps to null

Since:

1.0