Package io.github.vitalforge.persistlib.util

Class MapUtils

java.lang.Object

io.github.vitalforge.persistlib.util.MapUtils

public final class MapUtils
extends Object

Utility class for operations on Maps.

Method Summary

Modifier and Type	Method	Description
static @Nullable Object	getDeepValue(Map<String,Object> map, String path)	Retrieves a value from a nested map using a string path.
static <K> @Nullable Object	getDeepValue(Map<K,Object> map, K[] path)	Retrieves a value from a nested map using an array of keys.
static void	putDeepValue(Map<String,Object> map, Object value, String path)	Inserts a value into a map at a specified string path, creating nested maps as necessary.
static <K> void	putDeepValue(Map<K,Object> map, Object value, K[] path)	Inserts a value into a map at a specified path, creating nested maps as necessary.

Methods inherited from class java.lang.Object

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

Method Details

getDeepValue

@Nullable
public static @Nullable Object getDeepValue(Map<String,Object> map,
 String path)

Retrieves a value from a nested map using a string path.

Parameters:

map - The map from which to retrieve the value.

path - The path to the value in the map.

Returns:

The value at the specified path, or null if the path does not exist.

getDeepValue

@Nullable
public static <K> @Nullable Object getDeepValue(Map<K,Object> map,
 K[] path)

Retrieves a value from a nested map using an array of keys.

Type Parameters:

K - The type of the keys in the map.

Parameters:

map - The map from which to retrieve the value.

path - The path to the value in the map.

Returns:

The value at the specified path, or null if the path does not exist.

putDeepValue

public static void putDeepValue(Map<String,Object> map,
 Object value,
 String path)

Inserts a value into a map at a specified string path, creating nested maps as necessary.

Parameters:

map - The map into which to insert the value.

value - The value to insert.

path - The path at which to insert the value.

putDeepValue

public static <K> void putDeepValue(Map<K,Object> map,
 Object value,
 K[] path)

Inserts a value into a map at a specified path, creating nested maps as necessary.

Type Parameters:

K - The type of the keys in the map.

Parameters:

map - The map into which to insert the value.

value - The value to insert.

path - The path at which to insert the value.