net.lenni0451.commons.collections

Class Maps

java.lang.Object

net.lenni0451.commons.collections.Maps

public class Maps
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
Maps()

Method Summary

Modifier and Type	Method and Description
static <T extends java.util.Map<K,V>,K,V> T	any(java.util.function.Supplier<T> mapSupplier, java.util.function.Consumer<T> mapConsumer) Create a new map which is passed to the given consumer.
static <T extends java.util.Map<K,V>,K,V> T	any(java.util.function.Supplier<T> mapSupplier, java.lang.Object... objects) Create a new map with the given objects.
static <K,V> java.util.concurrent.ConcurrentHashMap<K,V>	concurrentHashMap(java.util.function.Consumer<java.util.concurrent.ConcurrentHashMap<K,V>> mapConsumer) Create a new ConcurrentHashMap which is passed to the given consumer.
static <K,V> java.util.concurrent.ConcurrentHashMap<K,V>	concurrentHashMap(java.lang.Object... objects) Create a new ConcurrentHashMap with the given objects.
static <K,V> java.util.HashMap<K,V>	hashMap(java.util.function.Consumer<java.util.HashMap<K,V>> mapConsumer) Create a new HashMap which is passed to the given consumer.
static <K,V> java.util.HashMap<K,V>	hashMap(java.lang.Object... objects) Create a new HashMap with the given objects.
static <K,V> java.util.LinkedHashMap<K,V>	linkedHashMap(java.util.function.Consumer<java.util.LinkedHashMap<K,V>> mapConsumer) Create a new LinkedHashMap which is passed to the given consumer.
static <K,V> java.util.LinkedHashMap<K,V>	linkedHashMap(java.lang.Object... objects) Create a new LinkedHashMap with the given objects.
static <K,V> java.util.Map<K,V>	merge(java.util.Map<K,V> map, java.util.Map<K,V>... others) Merge multiple maps into one.
static <K,V> java.util.LinkedHashMap<K,V>	sort(java.util.Map<K,V> map, java.util.Comparator<java.util.Map.Entry<K,V>> comparator) Sort a map using the given comparator.

Methods inherited from class java.lang.Object

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

Constructor Detail

Maps

public Maps()

Method Detail

sort

public static <K,V> java.util.LinkedHashMap<K,V> sort(java.util.Map<K,V> map,
                                                      java.util.Comparator<java.util.Map.Entry<K,V>> comparator)

Sort a map using the given comparator.
This will return a LinkedHashMap to keep the order of the map.

Type Parameters:

K - The key type

V - The value type

Parameters:

map - The map to sort

comparator - The comparator to use

Returns:

The sorted map

merge

@SafeVarargs
public static <K,V> java.util.Map<K,V> merge(java.util.Map<K,V> map,
                                                           java.util.Map<K,V>... others)

Merge multiple maps into one.
The maps are not modified.

Type Parameters:

K - The key type

V - The value type

Parameters:

map - The first map

others - The other maps

Returns:

The merged map

any

public static <T extends java.util.Map<K,V>,K,V> T any(java.util.function.Supplier<T> mapSupplier,
                                                       java.lang.Object... objects)

Create a new map with the given objects.
The objects must be in the format: key, value, key, value, ...
The types of the keys and values are not checked.

Type Parameters:

T - The map type

K - The key type

V - The value type

Parameters:

mapSupplier - The supplier to create the map

objects - The objects to add to the map

Returns:

The created map

any

public static <T extends java.util.Map<K,V>,K,V> T any(java.util.function.Supplier<T> mapSupplier,
                                                       java.util.function.Consumer<T> mapConsumer)

Create a new map which is passed to the given consumer.

Type Parameters:

T - The map type

K - The key type

V - The value type

Parameters:

mapSupplier - The supplier to create the map

mapConsumer - The consumer to pass the map to

Returns:

The created map

hashMap

public static <K,V> java.util.HashMap<K,V> hashMap(java.lang.Object... objects)

Create a new HashMap with the given objects.
The objects must be in the format: key, value, key, value, ...
The types of the keys and values are not checked.

Type Parameters:

K - The key type

V - The value type

Parameters:

objects - The objects to add to the map

Returns:

The created map

hashMap

public static <K,V> java.util.HashMap<K,V> hashMap(java.util.function.Consumer<java.util.HashMap<K,V>> mapConsumer)

Create a new HashMap which is passed to the given consumer.

Type Parameters:

K - The key type

V - The value type

Parameters:

mapConsumer - The consumer to pass the map to

Returns:

The created map

linkedHashMap

public static <K,V> java.util.LinkedHashMap<K,V> linkedHashMap(java.lang.Object... objects)

Create a new LinkedHashMap with the given objects.
The objects must be in the format: key, value, key, value, ...
The types of the keys and values are not checked.

Type Parameters:

K - The key type

V - The value type

Parameters:

objects - The objects to add to the map

Returns:

The created map

linkedHashMap

public static <K,V> java.util.LinkedHashMap<K,V> linkedHashMap(java.util.function.Consumer<java.util.LinkedHashMap<K,V>> mapConsumer)

Create a new LinkedHashMap which is passed to the given consumer.

Type Parameters:

K - The key type

V - The value type

Parameters:

mapConsumer - The consumer to pass the map to

Returns:

The created map

concurrentHashMap

public static <K,V> java.util.concurrent.ConcurrentHashMap<K,V> concurrentHashMap(java.lang.Object... objects)

Create a new ConcurrentHashMap with the given objects.
The objects must be in the format: key, value, key, value, ...
The types of the keys and values are not checked.

Type Parameters:

K - The key type

V - The value type

Parameters:

objects - The objects to add to the map

Returns:

The created map

concurrentHashMap

public static <K,V> java.util.concurrent.ConcurrentHashMap<K,V> concurrentHashMap(java.util.function.Consumer<java.util.concurrent.ConcurrentHashMap<K,V>> mapConsumer)

Create a new ConcurrentHashMap which is passed to the given consumer.

Type Parameters:

K - The key type

V - The value type

Parameters:

mapConsumer - The consumer to pass the map to

Returns:

The created map