enumj

Class LazyEnumerable<E>

java.lang.Object

enumj.AbstractEnumerable<E>

enumj.LazyEnumerable<E>

Type Parameters:

E - type of enumerated elements.

All Implemented Interfaces:

Enumerable<E>, Iterable<E>

final class LazyEnumerable<E>
extends AbstractEnumerable<E>

Enumerable that retrieves its source of elements lazily.

See Also:

Enumerable, AbstractEnumerable

Method Summary

Modifier and Type	Method and Description
protected Enumerator<E>	internalEnumerator() Yields a new Enumerator for the current Enumerable.
protected boolean	internalOnceOnly() Gets whether the current instance may yield a Enumerator only once.
static <E> LazyEnumerable<E>	of(Supplier<? extends Iterable<E>> source) Creates a LazyEnumerable instance that uses source to get its source of elements.

Methods inherited from class enumj.AbstractEnumerable

enumerating, enumerator, onceOnly

Methods inherited from class java.lang.Object

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

Methods inherited from interface enumj.Enumerable

append, as, asEnumeration, asFiltered, asSpliterator, asStream, asTolerant, asTolerant, cached, cached, choiceOf, choiceOf, concat, concatOn, distinct, elementsEqual, empty, filter, flatMap, iterate, iterator, limit, limitWhile, map, map, of, of, of, of, of, of, ofLateBinding, ofLazyEnumeration, ofLazyIterable, ofLazyIterator, ofLazySpliterator, ofLazyStream, on, onceOnly, peek, prepend, prependOn, range, rangeClosed, rangeInt, rangeIntClosed, rangeLong, rangeLongClosed, repeat, repeatAll, repeatEach, reverse, skip, skipWhile, sorted, sorted, take, takeWhile, union, unionOn, zipAll, zipAny, zipBoth, zipLeft, zipRight

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Method Detail

internalOnceOnly

protected boolean internalOnceOnly()

Description copied from class: AbstractEnumerable

Gets whether the current instance may yield a Enumerator only once.

This method is the internal counterpart of AbstractEnumerable.onceOnly().

Specified by:

internalOnceOnly in class AbstractEnumerable<E>

Returns:

true if AbstractEnumerable.enumerator() may be called only once, false otherwise.

internalEnumerator

protected Enumerator<E> internalEnumerator()

Description copied from class: AbstractEnumerable

Yields a new Enumerator for the current Enumerable.

This method is the internal counterpart of AbstractEnumerable.enumerator().

Specified by:

internalEnumerator in class AbstractEnumerable<E>

Returns:

Enumerator instance.

See Also:

Enumerable

of

public static <E> LazyEnumerable<E> of(Supplier<? extends Iterable<E>> source)

Creates a LazyEnumerable instance that uses source to get its source of elements.

Type Parameters:

E - type of enumerated elements.

Parameters:

source - Supplier instance providing the source of elements lazily.

Returns:

LazyEnumerable instance.