Package it.unimi.dsi.fastutil.ints

Interface IntIterable

All Superinterfaces:

java.lang.Iterable<java.lang.Integer>

All Known Subinterfaces:

IntBidirectionalIterable, IntBigList, IntCollection, IntList, IntSet, IntSortedSet

All Known Implementing Classes:

AbstractIntBigList, AbstractIntBigList.IntSubList, AbstractIntCollection, AbstractIntList, AbstractIntList.IntSubList, AbstractIntSet, AbstractIntSortedSet, IntArrayList, IntArraySet, IntAVLTreeSet, IntBigArrayBigList, IntBigLists.EmptyBigList, IntBigLists.ListBigList, IntBigLists.Singleton, IntBigLists.SynchronizedBigList, IntBigLists.UnmodifiableBigList, IntCollections.EmptyCollection, IntCollections.IterableCollection, IntCollections.SynchronizedCollection, IntCollections.UnmodifiableCollection, IntLinkedOpenCustomHashSet, IntLinkedOpenHashSet, IntLists.EmptyList, IntLists.Singleton, IntLists.SynchronizedList, IntLists.SynchronizedRandomAccessList, IntLists.UnmodifiableList, IntLists.UnmodifiableRandomAccessList, IntOpenCustomHashSet, IntOpenHashBigSet, IntOpenHashSet, IntRBTreeSet, IntSets.EmptySet, IntSets.Singleton, IntSets.SynchronizedSet, IntSets.UnmodifiableSet, IntSortedSets.EmptySet, IntSortedSets.Singleton, IntSortedSets.SynchronizedSortedSet, IntSortedSets.UnmodifiableSortedSet

public interface IntIterable
extends java.lang.Iterable<java.lang.Integer>

A type-specific Iterable that strengthens that specification of iterator() and forEach(Consumer).

Note that whenever there exist a primitive consumer in java.util.function (e.g., IntConsumer), trying to access any version of forEach(Consumer) using a lambda expression with untyped arguments will generate an ambiguous method error. This can be easily solved by specifying the type of the argument, as in

    intIterable.forEach((int x) -> { // Do something with x });
 

The same problem plagues, for example, PrimitiveIterator.OfInt.forEachRemaining(java.util.function.IntConsumer).

Warning: Java will let you write “colon” for statements with primitive-type loop variables; however, what is (unfortunately) really happening is that at each iteration an unboxing (and, in the case of fastutil type-specific data structures, a boxing) will be performed. Watch out.

See Also:

Iterable

Method Summary

Modifier and Type	Method	Description
default void	forEach(java.util.function.Consumer<? super java.lang.Integer> action)	Deprecated. Please use the corresponding type-specific method instead.
default void	forEach(java.util.function.IntConsumer action)	Performs the given action for each element of this type-specific Iterable until all elements have been processed or the action throws an exception.
IntIterator	iterator()	Returns a type-specific iterator.

Methods inherited from interface java.lang.Iterable

spliterator

Method Detail

iterator

IntIterator iterator()

Returns a type-specific iterator.

Note that this specification strengthens the one given in Iterable.iterator().

Specified by:

iterator in interface java.lang.Iterable<java.lang.Integer>

Returns:

a type-specific iterator.

See Also:

Iterable.iterator()

forEach

default void forEach(java.util.function.IntConsumer action)

Performs the given action for each element of this type-specific Iterable until all elements have been processed or the action throws an exception.

Parameters:

action - the action to be performed for each element.

Since:

8.0.0

See Also:

Iterable.forEach(java.util.function.Consumer)

forEach

@Deprecated
default void forEach(java.util.function.Consumer<? super java.lang.Integer> action)

Deprecated.

Please use the corresponding type-specific method instead.

Specified by:

forEach in interface java.lang.Iterable<java.lang.Integer>