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

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

Class Jdk8UnmodifiableSetFactory

java.lang.Object

pl.tlinkowski.unij.service.collect.jdk8.Jdk8UnmodifiableSetFactory

All Implemented Interfaces:

UnmodifiableSetFactory

@AutoService(pl.tlinkowski.unij.service.api.collect.UnmodifiableSetFactory.class)
public final class Jdk8UnmodifiableSetFactory
extends Object
implements UnmodifiableSetFactory

Implementation of UnmodifiableSetFactory following the JDK 11 unmodifiable sets specification (e.g. no null elements allowed, throws IllegalArgumentException on duplicate elements provided to of(...) methods).

This implementation returns either a HashSet wrapped by Collections.unmodifiableSet(java.util.Set<? extends T>) or a Collections.singleton(T).

Author:

Tomasz Linkowski

Constructor Summary

Constructors

Constructor	Description
Jdk8UnmodifiableSetFactory()

Method Summary

Modifier and Type	Method	Description
<E> Collector<E,?,Set<E>>	collector()	Based on Collectors.toUnmodifiableSet().
<E> Set<E>	copyOf(Collection<? extends E> coll)	Based on Set.copyOf(Collection).
<E> Set<E>	of()
<E> Set<E>	of(E e1)
<E> Set<E>	of(E... elements)	Based on Set.of(Object[]).
<E> Set<E>	of(E e1, E e2)
<E> Set<E>	of(E e1, E e2, E e3)
<E> Set<E>	of(E e1, E e2, E e3, E e4)
<E> Set<E>	of(E e1, E e2, E e3, E e4, E e5)
<E> Set<E>	of(E e1, E e2, E e3, E e4, E e5, E e6)
<E> Set<E>	of(E e1, E e2, E e3, E e4, E e5, E e6, E e7)
<E> Set<E>	of(E e1, E e2, E e3, E e4, E e5, E e6, E e7, E e8)
<E> Set<E>	of(E e1, E e2, E e3, E e4, E e5, E e6, E e7, E e8, E e9)
<E> Set<E>	of(E e1, E e2, E e3, E e4, E e5, E e6, E e7, E e8, E e9, E e10)

Methods inherited from class java.lang.Object

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

Constructor Detail

Jdk8UnmodifiableSetFactory

public Jdk8UnmodifiableSetFactory()

Method Detail

collector

public <E> Collector<E,?,Set<E>> collector()

Based on Collectors.toUnmodifiableSet().

Specified by:

collector in interface UnmodifiableSetFactory

copyOf

public <E> Set<E> copyOf(Collection<? extends E> coll)

Based on Set.copyOf(Collection).

Specified by:

copyOf in interface UnmodifiableSetFactory

of

public <E> Set<E> of()

Specified by:

of in interface UnmodifiableSetFactory

of

public <E> Set<E> of(@NonNull
                     E e1)

Specified by:

of in interface UnmodifiableSetFactory

of

public <E> Set<E> of(@NonNull
                     E e1,
                     @NonNull
                     E e2)

Specified by:

of in interface UnmodifiableSetFactory

of

public <E> Set<E> of(@NonNull
                     E e1,
                     @NonNull
                     E e2,
                     @NonNull
                     E e3)

Specified by:

of in interface UnmodifiableSetFactory

of

public <E> Set<E> of(@NonNull
                     E e1,
                     @NonNull
                     E e2,
                     @NonNull
                     E e3,
                     @NonNull
                     E e4)

Specified by:

of in interface UnmodifiableSetFactory

of

public <E> Set<E> of(@NonNull
                     E e1,
                     @NonNull
                     E e2,
                     @NonNull
                     E e3,
                     @NonNull
                     E e4,
                     @NonNull
                     E e5)

Specified by:

of in interface UnmodifiableSetFactory

of

public <E> Set<E> of(@NonNull
                     E e1,
                     @NonNull
                     E e2,
                     @NonNull
                     E e3,
                     @NonNull
                     E e4,
                     @NonNull
                     E e5,
                     @NonNull
                     E e6)

Specified by:

of in interface UnmodifiableSetFactory

of

public <E> Set<E> of(@NonNull
                     E e1,
                     @NonNull
                     E e2,
                     @NonNull
                     E e3,
                     @NonNull
                     E e4,
                     @NonNull
                     E e5,
                     @NonNull
                     E e6,
                     @NonNull
                     E e7)

Specified by:

of in interface UnmodifiableSetFactory

of

public <E> Set<E> of(@NonNull
                     E e1,
                     @NonNull
                     E e2,
                     @NonNull
                     E e3,
                     @NonNull
                     E e4,
                     @NonNull
                     E e5,
                     @NonNull
                     E e6,
                     @NonNull
                     E e7,
                     @NonNull
                     E e8)

Specified by:

of in interface UnmodifiableSetFactory

of

public <E> Set<E> of(@NonNull
                     E e1,
                     @NonNull
                     E e2,
                     @NonNull
                     E e3,
                     @NonNull
                     E e4,
                     @NonNull
                     E e5,
                     @NonNull
                     E e6,
                     @NonNull
                     E e7,
                     @NonNull
                     E e8,
                     @NonNull
                     E e9)

Specified by:

of in interface UnmodifiableSetFactory

of

public <E> Set<E> of(@NonNull
                     E e1,
                     @NonNull
                     E e2,
                     @NonNull
                     E e3,
                     @NonNull
                     E e4,
                     @NonNull
                     E e5,
                     @NonNull
                     E e6,
                     @NonNull
                     E e7,
                     @NonNull
                     E e8,
                     @NonNull
                     E e9,
                     @NonNull
                     E e10)

Specified by:

of in interface UnmodifiableSetFactory

of

@SafeVarargs
public final <E> Set<E> of(E... elements)

Based on Set.of(Object[]).

Specified by:

of in interface UnmodifiableSetFactory