net.automatalib.commons.util.collections

Class CollectionsUtil

java.lang.Object

net.automatalib.commons.util.collections.CollectionsUtil

public abstract class CollectionsUtil
extends Object

Various methods for operating on collections.

Author:

Malte Isberner

Method Summary

Methods

Modifier and Type	Method and Description
static <E> boolean	addAll(Collection<E> coll, Iterable<? extends E> it) Adds all elements from an iterable to a collection.
static <T> Iterable<List<T>>	allCombinations(Iterable<T>... iterables)
static <T> Iterable<List<T>>	allTuples(Iterable<T> domain, int length)
static <T> Iterable<List<T>>	allTuples(Iterable<T> domain, int minLength, int maxLength)
static List<Character>	charRange(char start, char end)
static List<Integer>	intRange(int start, int end)
static List<Integer>	intRange(int start, int end, int step)
static <E> List<E>	nullList(int size) Retrieves an unmodifiable list only containing null values of the given size.
static <T> List<? extends T>	randomAccessList(Collection<? extends T> coll)
static <E> E	removeReplace(List<E> list, int index)

Methods inherited from class java.lang.Object

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

Method Detail

addAll

public static <E> boolean addAll(Collection<E> coll,
                 Iterable<? extends E> it)

Adds all elements from an iterable to a collection.

Type Parameters:

E - element class.

Parameters:

coll - the collection to which the elements are added.

it - the iterable providing the elements to add.

Returns:

true if the collection was modified, false otherwise.

nullList

public static <E> List<E> nullList(int size)

Retrieves an unmodifiable list only containing null values of the given size.

Parameters:

size - the size

Returns:

a list consisting of the specified number of null values

removeReplace

public static <E> E removeReplace(List<E> list,
                  int index)

intRange

public static List<Integer> intRange(int start,
                     int end)

intRange

public static List<Integer> intRange(int start,
                     int end,
                     int step)

charRange

public static List<Character> charRange(char start,
                        char end)

randomAccessList

public static <T> List<? extends T> randomAccessList(Collection<? extends T> coll)

allTuples

public static <T> Iterable<List<T>> allTuples(Iterable<T> domain,
                              int minLength,
                              int maxLength)

allTuples

public static <T> Iterable<List<T>> allTuples(Iterable<T> domain,
                              int length)

allCombinations

@SafeVarargs
public static <T> Iterable<List<T>> allCombinations(Iterable<T>... iterables)