cn.orionsec.kit.lang.utils.collect

Class Lists

java.lang.Object

cn.orionsec.kit.lang.utils.collect.Collections

cn.orionsec.kit.lang.utils.collect.Lists

public class Lists
extends Collections

List 工具类

Since:

2020/4/29 16:58

Version:

1.0.0

Author:

Jiahang Li

Method Summary

Modifier and Type	Method and Description
static <E> List<E>	as(Enumeration<E> iterator)
static <E> List<E>	as(Iterator<E> iterator)
static <T> void	copy(List<? extends T> src, List<? super T> target) 拷贝集合
static <E> void	cutAfter(List<E> list, int len) 保留集合的前几位
static <E> void	cutAround(List<E> list, int start, int len) 保留集合的中间几位
static <E> void	cutBefore(List<E> list, int len) 保留集合的后几位
static <E> List<E>	def(List<E> list)
static <E> List<E>	def(List<E> list, List<E> def)
static <E> List<E>	def(List<E> list, Supplier<List<E>> def)
static <E> List<E>	distinct(Collection<E> c, Function<E,?> keyGetter) 集合去重 -> list
static <E> List<E>	empty()
static boolean	eq(List<?> list1, List<?> list2) 集合是否相等
static <E> E	get(List<E> list, int i)
static <E> E	getIfPresent(List<E> list, int i) 获取元素 如果元素存在
static <E> E	getSet(List<E> list, int i, E e)
static <E> int	indexOf(List<E> list, E e) 查找第一个查询到的元素的位置
static <E> int	lastIndexOf(List<E> list, E e) 查找最后一个查询到的元素的位置
static <E,V> List<E>	map(List<V> list, Function<V,E> mapper)
static <E> void	merge(List<E> source, List<E>... listArray) 合并 list
static <E> List<E>	newCopyOnWriteList()
static <E> List<E>	newCopyOnWriteList(Collection<? extends E> c)
static <E> List<E>	newCopyOnWriteList(E[] array)
static <E> FixedArrayList<E>	newFixedList(int limit)
static <E> LimitList<E>	newLimitList()
static <E> LimitList<E>	newLimitList(Collection<? extends E> c)
static <E> LimitList<E>	newLimitList(Collection<? extends E> c, int limit)
static <E> LimitList<E>	newLimitList(int limit)
static <E> LimitList<E>	newLimitList(int initialCapacity, int limit)
static <E> LinkedList<E>	newLinkedList()
static <E> LinkedList<E>	newLinkedList(Collection<? extends E> c)
static <E> List<E>	newList()
static <E> List<E>	newList(Collection<? extends E> c)
static <E> List<E>	newList(int capacity)
static <E> MutableLinkedList<E>	newMutableLinkedList()
static <E> MutableLinkedList<E>	newMutableLinkedList(Collection<? extends E> c)
static <E> MutableArrayList<E>	newMutableList()
static <E> MutableArrayList<E>	newMutableList(Collection<? extends E> c)
static <E> MutableArrayList<E>	newMutableList(int capacity)
static <E> MutableVector<E>	newMutableVector()
static <E> MutableVector<E>	newMutableVector(Collection<? extends E> c)
static <E> MutableVector<E>	newMutableVector(int initialCapacity)
static <E> MutableVector<E>	newMutableVector(int initialCapacity, int capacityIncrement)
static <E> List<E>	newSynchronizedList()
static <E> List<E>	newSynchronizedList(List<E> list)
static <E> List<E>	of(E... values)
static <E,V> List<E>	of(Function<V,E> mapper, V... values)
static <E> List<List<E>>	partition(List<E> list, int size) list 分片
static <E> E	random(List<E> list) 从list随机获取一个元素
static <E> void	removeToSize(List<E> list, int size) 删除元素到指定大小
static <E> void	reverse(List<E> list) 翻转集合
static <E> void	set(List<E> list, int i, E e)
static <E> void	set(List<E> list, int i, E e, boolean force)
static <E> void	setex(List<E> list, int i, E e)
static <E> List<E>	singleton(E e)
static boolean[]	toBooleans(List<Boolean> list)
static byte[]	toBytes(List<Byte> list)
static char[]	toChars(List<Character> list)
static double[]	toDoubles(List<Double> list)
static float[]	toFloats(List<Float> list)
static int[]	toInts(List<Integer> list)
static long[]	toLongs(List<Long> list)
static short[]	toShorts(List<Short> list)
static <E> List<E>	unmodified(List<E> list)

Methods inherited from class cn.orionsec.kit.lang.utils.collect.Collections

compact, contains, containsAll, diff, diff, diffAll, exclude, fill, fill, fill, first, forEach, getDuplicateItems, getFirstDuplicateItem, inter, isAllEmpty, isEmpty, isNoneEmpty, isNotEmpty, join, join, join, last, max, max, min, min, newSynchronizedCollection, size, stream, union, unmodified

Methods inherited from class java.lang.Object

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

Method Detail

newList

public static <E> List<E> newList()

newList

public static <E> List<E> newList(int capacity)

newList

public static <E> List<E> newList(Collection<? extends E> c)

newLinkedList

public static <E> LinkedList<E> newLinkedList()

newLinkedList

public static <E> LinkedList<E> newLinkedList(Collection<? extends E> c)

newMutableList

public static <E> MutableArrayList<E> newMutableList()

newMutableList

public static <E> MutableArrayList<E> newMutableList(int capacity)

newMutableList

public static <E> MutableArrayList<E> newMutableList(Collection<? extends E> c)

newMutableLinkedList

public static <E> MutableLinkedList<E> newMutableLinkedList()

newMutableLinkedList

public static <E> MutableLinkedList<E> newMutableLinkedList(Collection<? extends E> c)

newMutableVector

public static <E> MutableVector<E> newMutableVector()

newMutableVector

public static <E> MutableVector<E> newMutableVector(int initialCapacity)

newMutableVector

public static <E> MutableVector<E> newMutableVector(int initialCapacity,
                                                    int capacityIncrement)

newMutableVector

public static <E> MutableVector<E> newMutableVector(Collection<? extends E> c)

newFixedList

public static <E> FixedArrayList<E> newFixedList(int limit)

newLimitList

public static <E> LimitList<E> newLimitList()

newLimitList

public static <E> LimitList<E> newLimitList(int limit)

newLimitList

public static <E> LimitList<E> newLimitList(int initialCapacity,
                                            int limit)

newLimitList

public static <E> LimitList<E> newLimitList(Collection<? extends E> c)

newLimitList

public static <E> LimitList<E> newLimitList(Collection<? extends E> c,
                                            int limit)

newCopyOnWriteList

public static <E> List<E> newCopyOnWriteList()

newCopyOnWriteList

public static <E> List<E> newCopyOnWriteList(E[] array)

newCopyOnWriteList

public static <E> List<E> newCopyOnWriteList(Collection<? extends E> c)

newSynchronizedList

public static <E> List<E> newSynchronizedList()

newSynchronizedList

public static <E> List<E> newSynchronizedList(List<E> list)

unmodified

public static <E> List<E> unmodified(List<E> list)

singleton

public static <E> List<E> singleton(E e)

empty

public static <E> List<E> empty()

def

public static <E> List<E> def(List<E> list)

def

public static <E> List<E> def(List<E> list,
                              List<E> def)

def

public static <E> List<E> def(List<E> list,
                              Supplier<List<E>> def)

of

@SafeVarargs
public static <E> List<E> of(E... values)

of

@SafeVarargs
public static <E,V> List<E> of(Function<V,E> mapper,
                                             V... values)

map

public static <E,V> List<E> map(List<V> list,
                                Function<V,E> mapper)

as

public static <E> List<E> as(Iterator<E> iterator)

as

public static <E> List<E> as(Enumeration<E> iterator)

cutAfter

public static <E> void cutAfter(List<E> list,
                                int len)

保留集合的前几位

Type Parameters:

E - ignore

Parameters:

list - 集合

len - 保留几位

cutBefore

public static <E> void cutBefore(List<E> list,
                                 int len)

保留集合的后几位

Type Parameters:

E - ignore

Parameters:

list - 集合

len - 保留几位

cutAround

public static <E> void cutAround(List<E> list,
                                 int start,
                                 int len)

保留集合的中间几位

Type Parameters:

E - ignore

Parameters:

list - 集合

start - 从哪位开始切

len - 保留几位

merge

@SafeVarargs
public static <E> void merge(List<E> source,
                                           List<E>... listArray)

合并 list

Type Parameters:

E - ignore

Parameters:

source - 合并到的 list

listArray - 需要合并的 list

random

public static <E> E random(List<E> list)

从list随机获取一个元素

Type Parameters:

E - ignore

Parameters:

list - list

Returns:

元素

reverse

public static <E> void reverse(List<E> list)

翻转集合

Type Parameters:

E - ignore

Parameters:

list - 集合

indexOf

public static <E> int indexOf(List<E> list,
                              E e)

查找第一个查询到的元素的位置

Type Parameters:

E - ignore

Parameters:

list - 集合

e - 元素

Returns:

位置

lastIndexOf

public static <E> int lastIndexOf(List<E> list,
                                  E e)

查找最后一个查询到的元素的位置

Type Parameters:

E - ignore

Parameters:

list - 集合

e - 元素

Returns:

位置

eq

public static boolean eq(List<?> list1,
                         List<?> list2)

集合是否相等

Parameters:

list1 - ignore

list2 - ignore

Returns:

true 相等

removeToSize

public static <E> void removeToSize(List<E> list,
                                    int size)

删除元素到指定大小

Type Parameters:

E - E

Parameters:

list - list

size - 大小

partition

public static <E> List<List<E>> partition(List<E> list,
                                          int size)

list 分片

Type Parameters:

E - E

Parameters:

list - list

size - size

Returns:

partition list

distinct

public static <E> List<E> distinct(Collection<E> c,
                                   Function<E,?> keyGetter)

集合去重 -> list

Type Parameters:

E - E

Parameters:

c - c

keyGetter - keyGetter

Returns:

distinct list

getIfPresent

public static <E> E getIfPresent(List<E> list,
                                 int i)

获取元素 如果元素存在

Type Parameters:

E - E

Parameters:

list - list

i - i

Returns:

E

get

public static <E> E get(List<E> list,
                        int i)

set

public static <E> void set(List<E> list,
                           int i,
                           E e)

set

public static <E> void set(List<E> list,
                           int i,
                           E e,
                           boolean force)

setex

public static <E> void setex(List<E> list,
                             int i,
                             E e)

getSet

public static <E> E getSet(List<E> list,
                           int i,
                           E e)

toBytes

public static byte[] toBytes(List<Byte> list)

toShorts

public static short[] toShorts(List<Short> list)

toInts

public static int[] toInts(List<Integer> list)

toLongs

public static long[] toLongs(List<Long> list)

toFloats

public static float[] toFloats(List<Float> list)

toDoubles

public static double[] toDoubles(List<Double> list)

toBooleans

public static boolean[] toBooleans(List<Boolean> list)

toChars

public static char[] toChars(List<Character> list)

copy

public static <T> void copy(List<? extends T> src,
                            List<? super T> target)

拷贝集合

Type Parameters:

T - ignore

Parameters:

src - 原集合

target - 目标集合