io.github.felixgilioli.felixutils.collections

Class ListUtils

java.lang.Object

io.github.felixgilioli.felixutils.collections.ListUtils

public class ListUtils
extends Object

Class with utility methods for working with List.

Method Summary

Modifier and Type	Method and Description
static <T> List<T>	filter(Collection<T> collection, Predicate<T> condition) Return a new list with the filtered elements.
static <T> Optional<T>	findFirst(Collection<T> collection, Predicate<T> condition) Return an Optional with the first found element in collection.
static <T,S> List<T>	map(Collection<S> collection, Function<S,T> mapper) Return a new list with the new elements.

Methods inherited from class java.lang.Object

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

Method Detail

filter

public static <T> List<T> filter(Collection<T> collection,
                                 Predicate<T> condition)

Return a new list with the filtered elements.

Parameters:

collection - collection of elements.

condition - condition to filter the elements.

Returns:

list with the filtered elements.

map

public static <T,S> List<T> map(Collection<S> collection,
                                Function<S,T> mapper)

Return a new list with the new elements.

Parameters:

collection - collection of elements.

mapper - new element.

Returns:

list with the new elements.

findFirst

public static <T> Optional<T> findFirst(Collection<T> collection,
                                        Predicate<T> condition)

Return an Optional with the first found element in collection.

Parameters:

collection - collection of elements.

condition - condition to filter the element.

Returns:

Optional with the first found element in collection.