de.up.ling.irtg.util

Class FastutilUtils

java.lang.Object

de.up.ling.irtg.util.FastutilUtils

public class FastutilUtils
extends Object

Utilities for making life with fastutils more convenient.

Author:

koller

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	FastutilUtils.Int2ObjectEntryConsumer<E>

Constructor Summary

Constructors

Constructor and Description
FastutilUtils()

Method Summary

Modifier and Type	Method and Description
static void	forEach(IntForEach iterable, IntConsumer visitor)
static void	forEach(IntIterable iter, IntConsumer visitor) Iterates over the elements of the IntIterable.
static void	forEach(IntList list, IntConsumer visitor) An optimized implementation of forEach(it.unimi.dsi.fastutil.ints.IntIterable, java.util.function.IntConsumer) for lists.
static <E> void	forEachCartesian(List<Iterable<E>> iterables, Consumer<E[]> fn) Iterates over all tuples of elements in the given iterables.
static <E> void	foreachFastEntry(Int2ObjectMap<E> map, FastutilUtils.Int2ObjectEntryConsumer<E> fn) Iterates over all entries in an Int2ObjectMap using the fast iterator over its key-entry pairs.
static void	forEachInIntersection(IntSet s1, IntSet s2, IntConsumer fn)
static void	forEachIntCartesian(List<? extends IntIterable> iterables, Consumer<int[]> fn) Iterates over all tuples of elements in the given int iterables.
static boolean	isDisjoint(IntSet s1, IntSet s2)

Methods inherited from class java.lang.Object

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

Constructor Detail

FastutilUtils

public FastutilUtils()

Method Detail

forEach

public static void forEach(IntIterable iter,
                           IntConsumer visitor)

Iterates over the elements of the IntIterable. This avoids the boxing+unboxing that is entailed by the usual for/colon iteration idiom, while being only a little more verbose in code.

Parameters:

iter -

visitor -

forEach

public static void forEach(IntList list,
                           IntConsumer visitor)

An optimized implementation of forEach(it.unimi.dsi.fastutil.ints.IntIterable, java.util.function.IntConsumer) for lists. The method assumes an array-based implementation of lists, in which List.get(int) is fast.

Parameters:

list -

visitor -

forEach

public static void forEach(IntForEach iterable,
                           IntConsumer visitor)

forEachIntCartesian

public static void forEachIntCartesian(List<? extends IntIterable> iterables,
                                       Consumer<int[]> fn)

Iterates over all tuples of elements in the given int iterables. In other words, fn is called for each element of the Cartesian product of the iterables. The consumer fn is passed this tuple in an array which is reused in each call for efficiency.

Parameters:

iterables -

fn -

forEachInIntersection

public static void forEachInIntersection(IntSet s1,
                                         IntSet s2,
                                         IntConsumer fn)

forEachCartesian

public static <E> void forEachCartesian(List<Iterable<E>> iterables,
                                        Consumer<E[]> fn)

Iterates over all tuples of elements in the given iterables. In other words, fn is called for each element of the Cartesian product of the iterables. The consumer fn is passed this tuple in an array which is reused in each call for efficiency.

Type Parameters:

E -

Parameters:

iterables -

fn -

foreachFastEntry

public static <E> void foreachFastEntry(Int2ObjectMap<E> map,
                                        FastutilUtils.Int2ObjectEntryConsumer<E> fn)

Iterates over all entries in an Int2ObjectMap using the fast iterator over its key-entry pairs.

Type Parameters:

E -

Parameters:

map -

fn -

isDisjoint

public static boolean isDisjoint(IntSet s1,
                                 IntSet s2)