server/io.spine.server.tuple/Quartet

Quartet

public final class Quartet<A extends Message, B, C, D> extends Tuple implements Element.AValue<T>, Element.BValue<T>, Element.CValue<T>, Element.DValue<T>

A tuple with four elements.

The first element must be a non-default Message and not Empty.

Other three can be Message, Optional or Either.

Parameters

<A>

the type of the first element

<B>

the type of the second element

<C>

the type of the third element

<D>

the type of the fourth element

Functions

getA

public A getA()

Obtains the first element of the tuple.

getB

public B getB()

Obtains the second element of the tuple.

getC

public C getC()

Obtains the third element of the tuple.

getD

public D getD()

Obtains the fourth element of the tuple.

public static Quartet<A, B, C, D> of<A extends Message, B extends Message, C extends Message, D extends Message>(A a, B b, C c, D d)

Creates a quartet with all values present.

withNullable

public static Quartet<A, B, C, Optional<D>> withNullable<A extends Message, B extends Message, C extends Message, D extends Message>(A a, B b, C c, D d)

Creates a quartet with one optional value.

withNullable2

public static Quartet<A, B, Optional<C>, Optional<D>> withNullable2<A extends Message, B extends Message, C extends Message, D extends Message>(A a, B b, C c, D d)

Creates a quartet with two optional values.

withNullable3

public static Quartet<A, Optional<B>, Optional<C>, Optional<D>> withNullable3<A extends Message, B extends Message, C extends Message, D extends Message>(A a, B b, C c, D d)

Creates a quartet with three optional values.

Inherited functions

equals

public final boolean equals(Object obj)

forEach

public void forEach(Consumer<? extends Object> action)

get

protected final Object get(int index)

Obtains a value at the specified index.

hashCode

public final int hashCode()

iterator

public final Iterator<Message> iterator()

public abstract Iterator<T> iterator()

spliterator

public Spliterator<T> spliterator()