Package org.goplanit.utils.containers

Class ContainerUtils

java.lang.Object

org.goplanit.utils.containers.ContainerUtils

public class ContainerUtils
extends Object

Utilities for containers

Constructor Summary

Constructors

Constructor	Description
ContainerUtils()

Method Summary

Modifier and Type	Method	Description
static <T extends Collection<?>> T	wrapInUnmodifiableCollectionUnlessNull(T collection, Function<T,T> wrapInUnmodifiable)	Given the colletion and mapping to unmodifiable version of the collection check if not null and then apply the wrapping
static <T> List<T>	wrapInUnmodifiableListUnlessNull(List<T> list)	Wrap in an unmodifiable version unless it is null, then return null
static <T> Set<T>	wrapInUnmodifiableSetUnlessNull(Set<T> set)	Wrap in an unmodifiable version unless it is null, then return null
static <T> SortedSet<T>	wrapInUnmodifiableSortedSetUnlessNull(SortedSet<T> sortedSet)	Wrap in an unmodifiable version unless it is null, then return null

Methods inherited from class java.lang.Object

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

Constructor Detail

ContainerUtils

public ContainerUtils()

Method Detail

wrapInUnmodifiableCollectionUnlessNull

public static <T extends Collection<?>> T wrapInUnmodifiableCollectionUnlessNull(T collection,
                                                                                 Function<T,T> wrapInUnmodifiable)

Given the colletion and mapping to unmodifiable version of the collection check if not null and then apply the wrapping

Type Parameters:

T - type of collection

Parameters:

collection - to wrap

wrapInUnmodifiable - function to perform wrapping

Returns:

wrapped collection

wrapInUnmodifiableListUnlessNull

public static <T> List<T> wrapInUnmodifiableListUnlessNull(List<T> list)

Wrap in an unmodifiable version unless it is null, then return null

Type Parameters:

T - type of entries

Parameters:

list - to wrap

Returns:

wrapped list, or null

wrapInUnmodifiableSetUnlessNull

public static <T> Set<T> wrapInUnmodifiableSetUnlessNull(Set<T> set)

Wrap in an unmodifiable version unless it is null, then return null

Type Parameters:

T - type of entries

Parameters:

set - to wrap

Returns:

wrapped set, or null

wrapInUnmodifiableSortedSetUnlessNull

public static <T> SortedSet<T> wrapInUnmodifiableSortedSetUnlessNull(SortedSet<T> sortedSet)

Wrap in an unmodifiable version unless it is null, then return null

Type Parameters:

T - type of entries

Parameters:

sortedSet - to wrap

Returns:

wrapped set, or null