Package it.unimi.dsi.fastutil.longs

Interface LongIterable

All Superinterfaces:

java.lang.Iterable<java.lang.Long>

All Known Subinterfaces:

LongBidirectionalIterable, LongBigList, LongCollection, LongList, LongSet, LongSortedSet

All Known Implementing Classes:

AbstractLongBigList, AbstractLongBigList.LongSubList, AbstractLongCollection, AbstractLongList, AbstractLongList.LongSubList, AbstractLongSet, AbstractLongSortedSet, LongArrayList, LongArraySet, LongAVLTreeSet, LongBigArrayBigList, LongBigLists.EmptyBigList, LongBigLists.ListBigList, LongBigLists.Singleton, LongBigLists.SynchronizedBigList, LongBigLists.UnmodifiableBigList, LongCollections.EmptyCollection, LongCollections.IterableCollection, LongCollections.SynchronizedCollection, LongCollections.UnmodifiableCollection, LongLinkedOpenCustomHashSet, LongLinkedOpenHashSet, LongLists.EmptyList, LongLists.Singleton, LongLists.SynchronizedList, LongLists.SynchronizedRandomAccessList, LongLists.UnmodifiableList, LongLists.UnmodifiableRandomAccessList, LongOpenCustomHashSet, LongOpenHashBigSet, LongOpenHashSet, LongRBTreeSet, LongSets.EmptySet, LongSets.Singleton, LongSets.SynchronizedSet, LongSets.UnmodifiableSet, LongSortedSets.EmptySet, LongSortedSets.Singleton, LongSortedSets.SynchronizedSortedSet, LongSortedSets.UnmodifiableSortedSet

public interface LongIterable
extends java.lang.Iterable<java.lang.Long>

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.Long> action)	Deprecated. Please use the corresponding type-specific method instead.
default void	forEach(java.util.function.LongConsumer 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.
LongIterator	iterator()	Returns a type-specific iterator.

Methods inherited from interface java.lang.Iterable

spliterator

Method Detail

iterator

LongIterator 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.Long>

Returns:

a type-specific iterator.

See Also:

Iterable.iterator()

forEach

default void forEach(java.util.function.LongConsumer 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.Long> action)

Deprecated.

Please use the corresponding type-specific method instead.

Specified by:

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