Module pl.tlinkowski.unij.service.collect.jdk8

Package pl.tlinkowski.unij.service.collect.jdk8

Class Jdk8UnmodifiableMapFactory

java.lang.Object

pl.tlinkowski.unij.service.collect.jdk8.Jdk8UnmodifiableMapFactory

All Implemented Interfaces:

UnmodifiableMapFactory

@AutoService(pl.tlinkowski.unij.service.api.collect.UnmodifiableMapFactory.class)
public final class Jdk8UnmodifiableMapFactory
extends Object
implements UnmodifiableMapFactory

Implementation of UnmodifiableMapFactory following the JDK 11 unmodifiable maps specification (e.g. no null keys nor values allowed, throws IllegalArgumentException on duplicate keys).

This implementation returns either a HashMap wrapped by Collections.unmodifiableMap(java.util.Map<? extends K, ? extends V>) or a Collections.singletonMap(K, V).

Author:

Tomasz Linkowski

Constructor Summary

Constructors

Constructor	Description
Jdk8UnmodifiableMapFactory()

Method Summary

Modifier and Type	Method	Description
<T,K,V> Collector<T,?,Map<K,V>>	collector(Function<? super T,? extends K> keyMapper, Function<? super T,? extends V> valueMapper)	Based on Collectors.toUnmodifiableMap(Function, Function).
<T,K,V> Collector<T,?,Map<K,V>>	collector(Function<? super T,? extends K> keyMapper, Function<? super T,? extends V> valueMapper, BinaryOperator<V> mergeFunction)	Based on Collectors.toUnmodifiableMap(Function, Function, BinaryOperator).
<K,V> Map<K,V>	copyOf(Map<? extends K,? extends V> map)
<K,V> Map.Entry<K,V>	entry(K k, V v)	Based on Map.entry(K, V).
<K,V> Map<K,V>	of()
<K,V> Map<K,V>	of(K k1, V v1)
<K,V> Map<K,V>	of(K k1, V v1, K k2, V v2)
<K,V> Map<K,V>	of(K k1, V v1, K k2, V v2, K k3, V v3)
<K,V> Map<K,V>	of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4)
<K,V> Map<K,V>	of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5)
<K,V> Map<K,V>	of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6)
<K,V> Map<K,V>	of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6, K k7, V v7)
<K,V> Map<K,V>	of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6, K k7, V v7, K k8, V v8)
<K,V> Map<K,V>	of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6, K k7, V v7, K k8, V v8, K k9, V v9)
<K,V> Map<K,V>	of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6, K k7, V v7, K k8, V v8, K k9, V v9, K k10, V v10)
<K,V> Map<K,V>	ofEntries(Map.Entry<? extends K,? extends V>... entries)	Based on Map.ofEntries(Map.Entry[]).

Methods inherited from class java.lang.Object

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

Constructor Detail

Jdk8UnmodifiableMapFactory

public Jdk8UnmodifiableMapFactory()

Method Detail

collector

public <T,K,V> Collector<T,?,Map<K,V>> collector(Function<? super T,? extends K> keyMapper,
                                                                               Function<? super T,? extends V> valueMapper)

Based on Collectors.toUnmodifiableMap(Function, Function).

Specified by:

collector in interface UnmodifiableMapFactory

collector

public <T,K,V> Collector<T,?,Map<K,V>> collector(Function<? super T,? extends K> keyMapper,
                                                                               Function<? super T,? extends V> valueMapper,
                                                                               BinaryOperator<V> mergeFunction)

Based on Collectors.toUnmodifiableMap(Function, Function, BinaryOperator).

Specified by:

collector in interface UnmodifiableMapFactory

copyOf

public <K,V> Map<K,V> copyOf(Map<? extends K,? extends V> map)

Specified by:

copyOf in interface UnmodifiableMapFactory

ofEntries

@SafeVarargs
public final <K,V> Map<K,V> ofEntries(Map.Entry<? extends K,? extends V>... entries)

Based on Map.ofEntries(Map.Entry[]).

Specified by:

ofEntries in interface UnmodifiableMapFactory

entry

public <K,V> Map.Entry<K,V> entry(@NonNull
                                              K k,
                                              @NonNull
                                              V v)

Based on Map.entry(K, V).

Specified by:

entry in interface UnmodifiableMapFactory

of

public <K,V> Map<K,V> of()

Specified by:

of in interface UnmodifiableMapFactory

of

public <K,V> Map<K,V> of(@NonNull
                                     K k1,
                                     @NonNull
                                     V v1)

Specified by:

of in interface UnmodifiableMapFactory

of

public <K,V> Map<K,V> of(@NonNull
                                     K k1,
                                     @NonNull
                                     V v1,
                                     @NonNull
                                     K k2,
                                     @NonNull
                                     V v2)

Specified by:

of in interface UnmodifiableMapFactory

of

public <K,V> Map<K,V> of(@NonNull
                                     K k1,
                                     @NonNull
                                     V v1,
                                     @NonNull
                                     K k2,
                                     @NonNull
                                     V v2,
                                     @NonNull
                                     K k3,
                                     @NonNull
                                     V v3)

Specified by:

of in interface UnmodifiableMapFactory

of

public <K,V> Map<K,V> of(@NonNull
                                     K k1,
                                     @NonNull
                                     V v1,
                                     @NonNull
                                     K k2,
                                     @NonNull
                                     V v2,
                                     @NonNull
                                     K k3,
                                     @NonNull
                                     V v3,
                                     @NonNull
                                     K k4,
                                     @NonNull
                                     V v4)

Specified by:

of in interface UnmodifiableMapFactory

of

public <K,V> Map<K,V> of(@NonNull
                                     K k1,
                                     @NonNull
                                     V v1,
                                     @NonNull
                                     K k2,
                                     @NonNull
                                     V v2,
                                     @NonNull
                                     K k3,
                                     @NonNull
                                     V v3,
                                     @NonNull
                                     K k4,
                                     @NonNull
                                     V v4,
                                     @NonNull
                                     K k5,
                                     @NonNull
                                     V v5)

Specified by:

of in interface UnmodifiableMapFactory

of

public <K,V> Map<K,V> of(@NonNull
                                     K k1,
                                     @NonNull
                                     V v1,
                                     @NonNull
                                     K k2,
                                     @NonNull
                                     V v2,
                                     @NonNull
                                     K k3,
                                     @NonNull
                                     V v3,
                                     @NonNull
                                     K k4,
                                     @NonNull
                                     V v4,
                                     @NonNull
                                     K k5,
                                     @NonNull
                                     V v5,
                                     @NonNull
                                     K k6,
                                     @NonNull
                                     V v6)

Specified by:

of in interface UnmodifiableMapFactory

of

public <K,V> Map<K,V> of(@NonNull
                                     K k1,
                                     @NonNull
                                     V v1,
                                     @NonNull
                                     K k2,
                                     @NonNull
                                     V v2,
                                     @NonNull
                                     K k3,
                                     @NonNull
                                     V v3,
                                     @NonNull
                                     K k4,
                                     @NonNull
                                     V v4,
                                     @NonNull
                                     K k5,
                                     @NonNull
                                     V v5,
                                     @NonNull
                                     K k6,
                                     @NonNull
                                     V v6,
                                     @NonNull
                                     K k7,
                                     @NonNull
                                     V v7)

Specified by:

of in interface UnmodifiableMapFactory

of

public <K,V> Map<K,V> of(@NonNull
                                     K k1,
                                     @NonNull
                                     V v1,
                                     @NonNull
                                     K k2,
                                     @NonNull
                                     V v2,
                                     @NonNull
                                     K k3,
                                     @NonNull
                                     V v3,
                                     @NonNull
                                     K k4,
                                     @NonNull
                                     V v4,
                                     @NonNull
                                     K k5,
                                     @NonNull
                                     V v5,
                                     @NonNull
                                     K k6,
                                     @NonNull
                                     V v6,
                                     @NonNull
                                     K k7,
                                     @NonNull
                                     V v7,
                                     @NonNull
                                     K k8,
                                     @NonNull
                                     V v8)

Specified by:

of in interface UnmodifiableMapFactory

of

public <K,V> Map<K,V> of(@NonNull
                                     K k1,
                                     @NonNull
                                     V v1,
                                     @NonNull
                                     K k2,
                                     @NonNull
                                     V v2,
                                     @NonNull
                                     K k3,
                                     @NonNull
                                     V v3,
                                     @NonNull
                                     K k4,
                                     @NonNull
                                     V v4,
                                     @NonNull
                                     K k5,
                                     @NonNull
                                     V v5,
                                     @NonNull
                                     K k6,
                                     @NonNull
                                     V v6,
                                     @NonNull
                                     K k7,
                                     @NonNull
                                     V v7,
                                     @NonNull
                                     K k8,
                                     @NonNull
                                     V v8,
                                     @NonNull
                                     K k9,
                                     @NonNull
                                     V v9)

Specified by:

of in interface UnmodifiableMapFactory

of

public <K,V> Map<K,V> of(@NonNull
                                     K k1,
                                     @NonNull
                                     V v1,
                                     @NonNull
                                     K k2,
                                     @NonNull
                                     V v2,
                                     @NonNull
                                     K k3,
                                     @NonNull
                                     V v3,
                                     @NonNull
                                     K k4,
                                     @NonNull
                                     V v4,
                                     @NonNull
                                     K k5,
                                     @NonNull
                                     V v5,
                                     @NonNull
                                     K k6,
                                     @NonNull
                                     V v6,
                                     @NonNull
                                     K k7,
                                     @NonNull
                                     V v7,
                                     @NonNull
                                     K k8,
                                     @NonNull
                                     V v8,
                                     @NonNull
                                     K k9,
                                     @NonNull
                                     V v9,
                                     @NonNull
                                     K k10,
                                     @NonNull
                                     V v10)

Specified by:

of in interface UnmodifiableMapFactory