Package au.csiro.pathling.utilities

Class Lists

java.lang.Object

au.csiro.pathling.utilities.Lists

public abstract class Lists
extends Object

Utility class containing some List helper functions.

Author:

Piotr Szul

Constructor Summary

Constructors

Constructor	Description
Lists()

Method Summary

Modifier and Type	Method	Description
static <T> Optional<List<T>>	optionalOf(List<T> list)	Returns an optional of given list for non-empty list, or empty optional otherwise.

Methods inherited from class java.lang.Object

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

Constructor Details

Lists

public Lists()

Method Details

optionalOf

@Nonnull
public static <T> Optional<List<T>> optionalOf(@Nonnull
 List<T> list)

Returns an optional of given list for non-empty list, or empty optional otherwise.

Type Parameters:

T - type of list elements

Parameters:

list - list to convert

Returns:

option of given list for non-empty list, or empty option otherwise