de.espirit.common.util

Interface Listable<T>

Type Parameters:

T - The type of store elements.

All Superinterfaces:

Iterable<T>

public interface Listable<T>
extends Iterable<T>

An iterable on store elements that enables to transform the iterable into a list.

Since:

4.0

Method Summary

Methods

Modifier and Type	Method and Description
T	getFirst() Get the first element provided by this listable.
List<T>	toList() Creates a new, mutable list containing all elements.

Methods inherited from interface java.lang.Iterable

iterator

Method Detail

getFirst

@Nullable
T getFirst()

Get the first element provided by this listable.

Returns:

The first element or null, if empty.

Since:

4.0

toList

@NotNull
List<T> toList()

Creates a new, mutable list containing all elements.
Attention: Avoid using this method for iterative usage patterns. Use methods of Iterable instead.

Returns:

A new list on elements.

Since:

4.0