Package eu.bandm.tools.util.nonnull

Interface NonNullList<T>

All Superinterfaces:

Collection<T>, Iterable<T>, List<T>, SequencedCollection<T>

All Known Implementing Classes:

NonNullList.ListProxy

public interface NonNullList<T>
extends List<T>

Implements a list which is strict in all its elements. The implementation is done by delegation to some peer object from a predefined Java runtime class. Optional operations are supported whenever the peer object supports them.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	NonNullList.ListProxy<T2>	Internal proxy which inserts the checks for non-null into all state-changing methods.
static class	NonNullList.NonNullListIterator<T>

Method Summary

Static Methods

Modifier and Type	Method	Description
static <T2> NonNullList<T2>	copyOf(List<T2> proto)	Creates a new instance and uses the data from the given list.
static <T2> NonNullList<T2>	newInstance()	Creates a new instance and uses a ArrayList as its peer.
static <T2> NonNullList<T2>	newInstance(Supplier<List<T2>> supplier)	Creates a new instance and uses a list returned by the given supplier as its peer.
static <T> NonNullList<T>	singleton(T x)

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.List

add, add, addAll, addAll, addFirst, addLast, clear, contains, containsAll, equals, get, getFirst, getLast, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, removeFirst, removeLast, replaceAll, retainAll, reversed, set, size, sort, spliterator, subList, toArray, toArray

Method Details

newInstance

static <T2> NonNullList<T2> newInstance()

Creates a new instance and uses a ArrayList as its peer.

newInstance

static <T2> NonNullList<T2> newInstance(Supplier<List<T2>> supplier)

Creates a new instance and uses a list returned by the given supplier as its peer.

Parameters:

supplier - must deliver an empty instance of the intended peer class.

Throws:

IllegalArgumentException - if the delivered peer is not empty.

copyOf

static <T2> NonNullList<T2> copyOf(List<T2> proto)

Creates a new instance and uses the data from the given list. Uses Collections.duplicate(List) to create a copy with similar behaviour, to be used as peer.

Parameters:

proto - the data for the new list

Throws:

NullPointerException - if the data contains null values.

singleton

static <T> NonNullList<T> singleton(T x)