com.github.jlangch.venice.impl.util.vavr

Class Iterators

java.lang.Object

com.github.jlangch.venice.impl.util.vavr.Iterators

public class Iterators
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
Iterators()

Method Summary

Modifier and Type	Method and Description
static <T> io.vavr.collection.Iterator<T>	iterate(java.util.function.Supplier<? extends io.vavr.control.Option<? extends T>> supplier) Creates an iterator that repeatedly invokes the supplier while it's a Some and end on the first None
static <T> io.vavr.collection.Iterator<T>	iterate(T seed, java.util.function.Function<? super T,? extends io.vavr.control.Option<? extends T>> fn) Generates an infinite iterator using a function to calculate the next value based on the previous.

Methods inherited from class java.lang.Object

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

Constructor Detail

Iterators

public Iterators()

Method Detail

iterate

public static <T> io.vavr.collection.Iterator<T> iterate(java.util.function.Supplier<? extends io.vavr.control.Option<? extends T>> supplier)

Creates an iterator that repeatedly invokes the supplier while it's a Some and end on the first None

Type Parameters:

T - value type

Parameters:

supplier - A Supplier of iterator values

Returns:

A new Iterator

Throws:

java.lang.NullPointerException - if supplier produces null value

iterate

public static <T> io.vavr.collection.Iterator<T> iterate(T seed,
                                                         java.util.function.Function<? super T,? extends io.vavr.control.Option<? extends T>> fn)

Generates an infinite iterator using a function to calculate the next value based on the previous. The functions is invoked as long as it returns a Some and stops on the first None

Type Parameters:

T - value type

Parameters:

seed - The first value in the iterator

fn - A function to calculate the next value based on the previous

Returns:

A new Iterator