Module org.apache.jena.base

Package org.apache.jena.atlas.lib

Class ListUtils

java.lang.Object

org.apache.jena.atlas.lib.ListUtils

public class ListUtils
extends Object

Various things for lists

Method Summary

Modifier and Type	Method	Description
static List<Integer>	asList(int... values)
static <T> boolean	equalsUnordered(List<T> list1, List<T> list2)	Compare two lists, same elements, order of the lists may be different, elements must have the same cardinality.
static <T> T	last(List<T> list)
static <T> List<T>	listDiff(List<T> list1, List<T> list2)	Asymmetric diff of two unordered lists, returning the elements in list1 not in list2.
static <T> Pair<List<T>,List<T>>	listDiffBoth(List<T> list1, List<T> list2)	Diff of two unordered lists, returning the elements in list1 not in list2, and the elements of list2 not in list1.
static <T> List<List<T>>	permute(List<T> c)	Return a list of lists of all the elements of collection in every order Easy to run out of heap memory.
static <T> void	print(IndentedWriter out, List<T> list)
static <T> void	print(IndentedWriter out, List<T> list, CharSequence sep)
static String	str(int[] array)
static String	str(long[] array)
static <T> String	str(T[] array)
static <T> List<T>	toList(Stream<T> stream)
static <T> List<T>	unique(List<T> list)

Methods inherited from class java.lang.Object

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

Method Details

unique

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

asList

public static List<Integer> asList(int... values)

last

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

toList

public static <T> List<T> toList(Stream<T> stream)

str

public static <T> String str(T[] array)

str

public static String str(int[] array)

str

public static String str(long[] array)

print

public static <T> void print(IndentedWriter out,
 List<T> list)

print

public static <T> void print(IndentedWriter out,
 List<T> list,
 CharSequence sep)

equalsUnordered

public static <T> boolean equalsUnordered(List<T> list1,
 List<T> list2)

Compare two lists, same elements, order of the lists may be different, elements must have the same cardinality.

listDiff

public static <T> List<T> listDiff(List<T> list1,
 List<T> list2)

Asymmetric diff of two unordered lists, returning the elements in list1 not in list2. Cardinality is significant.

listDiffBoth

public static <T> Pair<List<T>,List<T>> listDiffBoth(List<T> list1,
 List<T> list2)

Diff of two unordered lists, returning the elements in list1 not in list2, and the elements of list2 not in list1. Cardinality is significant.

permute

public static <T> List<List<T>> permute(List<T> c)

Return a list of lists of all the elements of collection in every order Easy to run out of heap memory. See also org.apache.jena.ext.com.google.common.collect.Collections2#permutations