Package io.smallrye.openapi.api.util

Class ListUtil

java.lang.Object

io.smallrye.openapi.api.util.ListUtil

public class ListUtil
extends Object

Util that helps with List operations

Author:

Eric Wittmann (eric.wittmann@gmail.com), Phillip Kruger (phillip.kruger@redhat.com)

Method Summary

Modifier and Type	Method	Description
static <T> List<T>	mergeNullableLists(List<T>... lists)	Combines the lists passed into a new list, excluding any null lists given.

Methods inherited from class java.lang.Object

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

Method Details

mergeNullableLists

@SafeVarargs
public static <T> List<T> mergeNullableLists(List<T>... lists)

Combines the lists passed into a new list, excluding any null lists given. If the resulting list is empty, return null. This method is marked with @SafeVarargs because the elements of the lists handled generically and the input/output types match.

Type Parameters:

T - element type of the list

Parameters:

lists - one or more lists to combine

Returns:

the combined/merged lists or null if the resulting merged list is empty