io.werval.util

Class Maps

java.lang.Object

io.werval.util.Maps

public final class Maps
extends Object

Maps Utilities.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Maps.MapBuilder<M extends Map<K,V>,K,V> Map Builder.
static interface	Maps.MultiValueMapBuilder<M extends Map<K,List<V>>,K,V> MultiValueMap Builder.

Method Summary

Modifier and Type	Method and Description
static <M extends MultiValueMap<K,V>,K,V> Maps.MultiValueMapBuilder<M,K,V>	fromMap(M map) Create a MultiValueMap Builder starting with a given MultiValueMap.
static <M extends Map<K,V>,K,V> Maps.MapBuilder<M,K,V>	fromMap(M map) Create a Map Builder starting with a given Map.
static <K,V> Maps.MapBuilder<ConcurrentHashMap<K,V>,K,V>	newConcurrentHashMap(Class<? super K> kClass, Class<? super V> vClass) Create a Map Builder starting with an empty ConcurrentHashMap.
static <K,V> Maps.MapBuilder<ConcurrentSkipListMap<K,V>,K,V>	newConcurrentSkipListMap(Class<? super K> kClass, Class<? super V> vClass) Create a Map Builder starting with an empty ConcurrentSkipListMap.
static <K,V> Maps.MapBuilder<ConcurrentSkipListMap<K,V>,K,V>	newConcurrentSkipListMap(Class<? super K> kClass, Class<? super V> vClass, Comparator<? super K> comparator) Create a Map Builder starting with an empty ConcurrentSkipListMap.
static <K,V> Maps.MapBuilder<HashMap<K,V>,K,V>	newHashMap(Class<? super K> kClass, Class<? super V> vClass) Create a Map Builder starting with an empty HashMap.
static <K,V> Maps.MapBuilder<IdentityHashMap<K,V>,K,V>	newIdentityHashMap(Class<? super K> kClass, Class<? super V> vClass) Create a Map Builder starting with an empty IdentityHashMap.
static <K,V> Maps.MapBuilder<LinkedHashMap<K,V>,K,V>	newLinkedHashMap(Class<? super K> kClass, Class<? super V> vClass) Create a Map Builder starting with an empty LinkedHashMap.
static <K,V> Maps.MultiValueMapBuilder<LinkedMultiValueMap<K,V>,K,V>	newLinkedMultiValueMap(Class<? super K> kClass, Class<? super V> vClass) Create a MultiValueMap Builder starting with an empty LinkedMultiValueMap.
static <K,V> Maps.MapBuilder<TreeMap<K,V>,K,V>	newTreeMap(Class<? super K> kClass, Class<? super V> vClass) Create a Map Builder starting with an empty TreeMap.
static <K,V> Maps.MapBuilder<TreeMap<K,V>,K,V>	newTreeMap(Class<? super K> kClass, Class<? super V> vClass, Comparator<? super K> comparator) Create a Map Builder starting with an empty TreeMap.
static <K,V> Maps.MultiValueMapBuilder<TreeMultiValueMap<K,V>,K,V>	newTreeMultiValueMap(Class<? super K> kClass, Class<? super V> vClass) Create a MultiValueMap Builder starting with an empty TreeMultiValueMap.
static <K,V> Maps.MapBuilder<WeakHashMap<K,V>,K,V>	newWeakHashMap(Class<? super K> kClass, Class<? super V> vClass) Create a Map Builder starting with an empty WeakHashMap.
static <K,V> MultiValueMap<K,V>	unmodifiableMultiValueMap(MultiValueMap<? extends K,? extends V> mvmap) Returns an unmodifiable view of the specified MultiValueMap.

Methods inherited from class java.lang.Object

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

Method Detail

newHashMap

public static <K,V> Maps.MapBuilder<HashMap<K,V>,K,V> newHashMap(Class<? super K> kClass,
                                                                 Class<? super V> vClass)

Create a Map Builder starting with an empty HashMap.

Type Parameters:

K - Key parameterized type

V - Value parameterized type

Parameters:

kClass - Key Class

vClass - Value Class

Returns:

The Map Builder started with an empty HashMap.

newLinkedHashMap

public static <K,V> Maps.MapBuilder<LinkedHashMap<K,V>,K,V> newLinkedHashMap(Class<? super K> kClass,
                                                                             Class<? super V> vClass)

Create a Map Builder starting with an empty LinkedHashMap.

Type Parameters:

K - Key parameterized type

V - Value parameterized type

Parameters:

kClass - Key Class

vClass - Value Class

Returns:

The Map Builder started with an empty LinkedHashMap.

newConcurrentHashMap

public static <K,V> Maps.MapBuilder<ConcurrentHashMap<K,V>,K,V> newConcurrentHashMap(Class<? super K> kClass,
                                                                                     Class<? super V> vClass)

Create a Map Builder starting with an empty ConcurrentHashMap.

Type Parameters:

K - Key parameterized type

V - Value parameterized type

Parameters:

kClass - Key Class

vClass - Value Class

Returns:

The Map Builder started with an empty ConcurrentHashMap.

newConcurrentSkipListMap

public static <K,V> Maps.MapBuilder<ConcurrentSkipListMap<K,V>,K,V> newConcurrentSkipListMap(Class<? super K> kClass,
                                                                                             Class<? super V> vClass)

Create a Map Builder starting with an empty ConcurrentSkipListMap.

Type Parameters:

K - Key parameterized type

V - Value parameterized type

Parameters:

kClass - Key Class

vClass - Value Class

Returns:

The Map Builder started with an empty ConcurrentSkipListMap.

newConcurrentSkipListMap

public static <K,V> Maps.MapBuilder<ConcurrentSkipListMap<K,V>,K,V> newConcurrentSkipListMap(Class<? super K> kClass,
                                                                                             Class<? super V> vClass,
                                                                                             Comparator<? super K> comparator)

Create a Map Builder starting with an empty ConcurrentSkipListMap.

Type Parameters:

K - Key parameterized type

V - Value parameterized type

Parameters:

kClass - Key Class

vClass - Value Class

comparator - The comparator that will be used to order this map. If null, the natural ordering of the keys will be used.

Returns:

The Map Builder started with an empty ConcurrentSkipListMap.

newIdentityHashMap

public static <K,V> Maps.MapBuilder<IdentityHashMap<K,V>,K,V> newIdentityHashMap(Class<? super K> kClass,
                                                                                 Class<? super V> vClass)

Create a Map Builder starting with an empty IdentityHashMap.

Type Parameters:

K - Key parameterized type

V - Value parameterized type

Parameters:

kClass - Key Class

vClass - Value Class

Returns:

The Map Builder started with an empty IdentityHashMap.

newWeakHashMap

public static <K,V> Maps.MapBuilder<WeakHashMap<K,V>,K,V> newWeakHashMap(Class<? super K> kClass,
                                                                         Class<? super V> vClass)

Create a Map Builder starting with an empty WeakHashMap.

Type Parameters:

K - Key parameterized type

V - Value parameterized type

Parameters:

kClass - Key Class

vClass - Value Class

Returns:

The Map Builder started with an empty WeakHashMap.

newTreeMap

public static <K,V> Maps.MapBuilder<TreeMap<K,V>,K,V> newTreeMap(Class<? super K> kClass,
                                                                 Class<? super V> vClass)

Create a Map Builder starting with an empty TreeMap.

Type Parameters:

K - Key parameterized type

V - Value parameterized type

Parameters:

kClass - Key Class

vClass - Value Class

Returns:

The Map Builder started with an empty TreeMap.

newTreeMap

public static <K,V> Maps.MapBuilder<TreeMap<K,V>,K,V> newTreeMap(Class<? super K> kClass,
                                                                 Class<? super V> vClass,
                                                                 Comparator<? super K> comparator)

Create a Map Builder starting with an empty TreeMap.

Type Parameters:

K - Key parameterized type

V - Value parameterized type

Parameters:

kClass - Key Class

vClass - Value Class

comparator - The comparator that will be used to order this map. If null, the natural ordering of the keys will be used.

Returns:

The Map Builder started with an empty TreeMap.

newLinkedMultiValueMap

public static <K,V> Maps.MultiValueMapBuilder<LinkedMultiValueMap<K,V>,K,V> newLinkedMultiValueMap(Class<? super K> kClass,
                                                                                                   Class<? super V> vClass)

Create a MultiValueMap Builder starting with an empty LinkedMultiValueMap.

Type Parameters:

K - Key parameterized type

V - Value parameterized type

Parameters:

kClass - Key Class

vClass - Value Class

Returns:

The MultiValueMap Builder started with an empty LinkedMultiValueMap

newTreeMultiValueMap

public static <K,V> Maps.MultiValueMapBuilder<TreeMultiValueMap<K,V>,K,V> newTreeMultiValueMap(Class<? super K> kClass,
                                                                                               Class<? super V> vClass)

Create a MultiValueMap Builder starting with an empty TreeMultiValueMap.

Type Parameters:

K - Key parameterized type

V - Value parameterized type

Parameters:

kClass - Key Class

vClass - Value Class

Returns:

The MultiValueMap Builder started with an empty TreeMultiValueMap

fromMap

public static <M extends Map<K,V>,K,V> Maps.MapBuilder<M,K,V> fromMap(M map)

Create a Map Builder starting with a given Map.

Type Parameters:

M - Map parameterized type

K - Key parameterized type

V - Value parameterized type

Parameters:

map - The Map the Builder will use

Returns:

The Map Builder started with the given Map

fromMap

public static <M extends MultiValueMap<K,V>,K,V> Maps.MultiValueMapBuilder<M,K,V> fromMap(M map)

Create a MultiValueMap Builder starting with a given MultiValueMap.

Type Parameters:

M - Map parameterized type

K - Key parameterized type

V - Value parameterized type

Parameters:

map - The MultiValueMap the Builder will use

Returns:

The MultiValueMap Builder started with the given MultiValueMap

unmodifiableMultiValueMap

public static <K,V> MultiValueMap<K,V> unmodifiableMultiValueMap(MultiValueMap<? extends K,? extends V> mvmap)

Returns an unmodifiable view of the specified MultiValueMap.

Type Parameters:

K - Parameterized type of the MultiValueMap keys

V - Parameterized type of the MultiValueMap values

Parameters:

mvmap - The MultiValueMap for which an unmodifiable view is to be returned.

Returns:

An unmodifiable view of the specified MultiValueMap.