public class BambooCollectionUtils extends Object
Modifier and Type | Method and Description |
---|---|
static <E> boolean |
addIgnoreNull(Collection<? super E> collection,
E element)
Add element to the collection if it is not null.
|
static <T> boolean |
contains(Collection<T> collection,
Object object) |
static List<String> |
convertToList(String s) |
static <E> E |
get(List<? extends E> list,
int index)
Get Nth element from list or null if list hasn't got so many elements
|
static <T> Collection<T> |
getLastElements(Collection<T> collection,
int numberOfElements)
Returns the last N elements of a collection.
|
static <T> HashSet<T> |
newHashSet(Collection<T> collection) |
static <T> com.google.common.collect.ImmutableList<T> |
newImmutableList(Collection<T> collection) |
static <T> com.google.common.collect.ImmutableSet<T> |
newImmutableSet(Iterable<T> set)
Creates a new immutable set from the supplied set.
|
static <T> List<T> |
nullToEmptyImmutable(List<T> list) |
static <K,V> Map<K,V> |
nullToEmptyImmutable(Map<K,V> map) |
static <T> Set<T> |
nullToEmptyImmutable(Set<T> set) |
static <T> List<T> |
removeDuplicates(List<T> input) |
static <T extends Comparable<? super T>> |
removeDuplicatesAndSort(List<T> input) |
static <T> List<T> |
removeDuplicatesAndSort(List<T> input,
Comparator<? super T> c) |
static <K,V extends Comparable<? super V>> |
sortByValue(Map<K,V> map)
Given a map returns the list of entries in the map sorted by Entry.getValue() in descending order.
|
static Set<String> |
stringArrayToHashSet(String[] values) |
static List<String> |
stringArrayToList(String[] s) |
static List<String> |
stringToCollection(String s)
Converts a string with a given pattern into a Collection of strings.
|
static <T> List<T> |
subtract(Collection<T> a,
Collection<T> b)
Generic version of ListUtils.subtract
|
@NotNull public static List<String> stringToCollection(String s)
s
- string to be analyzed@NotNull public static Set<String> stringArrayToHashSet(@Nullable String[] values)
@Nullable public static <T extends Comparable<? super T>> List<T> removeDuplicatesAndSort(List<T> input)
@Nullable public static <T> List<T> removeDuplicatesAndSort(List<T> input, @NotNull Comparator<? super T> c)
@NotNull public static <T> List<T> subtract(@NotNull Collection<T> a, @NotNull Collection<T> b)
T
- any typea
- collection Ab
- collection Bpublic static <K,V extends Comparable<? super V>> List<Map.Entry<K,V>> sortByValue(Map<K,V> map)
map
- public static <E> boolean addIgnoreNull(@NotNull Collection<? super E> collection, @Nullable E element)
E
- Element typecollection
- Collection where element will be added toelement
- Element to be added to the collection@Nullable public static <E> E get(@NotNull List<? extends E> list, int index)
E
- Type of the elements in the listlist
- List to get element fromindex
- Index of element to get@NotNull public static <T> List<T> nullToEmptyImmutable(@Nullable List<T> list)
@NotNull public static <K,V> Map<K,V> nullToEmptyImmutable(@Nullable Map<K,V> map)
public static <T> boolean contains(@Nullable Collection<T> collection, Object object)
@NotNull public static <T> com.google.common.collect.ImmutableList<T> newImmutableList(@Nullable Collection<T> collection)
@NotNull public static <T> com.google.common.collect.ImmutableSet<T> newImmutableSet(@Nullable Iterable<T> set)
public static <T> HashSet<T> newHashSet(Collection<T> collection)
@NotNull public static <T> Collection<T> getLastElements(@NotNull Collection<T> collection, int numberOfElements)
collection
- collection of any elementsnumberOfElements
- number of last elements to return - must not be a negative number, must be no greater
than the size of provided collectionCopyright © 2019 Atlassian Software Systems Pty Ltd. All rights reserved.