Apache Commons Collections 4.4 · org.apache.commons.collections4.iterators.EmptyIterator

Provides an implementation of an empty iterator.

This class provides an implementation of an empty iterator. This class provides for binary compatibility between Commons Collections 2.1.1 and 3.1 due to issues with IteratorUtils.

Field Summary

Modifier and Type	Field and Description
public static final Iterator<E>	INSTANCE Singleton instance of the iterator.
public static final ResettableIterator<E>	RESETTABLE_INSTANCE Singleton instance of the iterator.

Constructor Summary

Access	Constructor and Description
protected	EmptyIterator() Constructor.

Method Summary

Modifier and Type	Method and Description
public static < the element type E> Iterator<E>	Returns: Iterator<E> emptyIterator() Get a typed empty iterator instance.
public static < the element type E> ResettableIterator<E>	Returns: ResettableIterator<E> resettableEmptyIterator() Get a typed resettable empty iterator instance.

Inherited from org.apache.commons.collections4.iterators.AbstractEmptyIterator:: add hasNext hasPrevious next nextIndex previous previousIndex remove reset set

Field Detail

INSTANCE	back to summary
public static final Iterator<E> INSTANCE Singleton instance of the iterator. Annotations @SuppressWarnings:rawtypes Since 2.1.1 and 3.1

RESETTABLE_INSTANCE	back to summary
public static final ResettableIterator<E> RESETTABLE_INSTANCE Singleton instance of the iterator. Annotations @SuppressWarnings:rawtypes Since 3.1

Constructor Detail

EmptyIterator	back to summary
protected EmptyIterator() Constructor.

Method Detail

emptyIterator	back to summary
public static <E> Iterator<E> emptyIterator() Get a typed empty iterator instance. Parameters <E> the element type Returns:Iterator<E> Iterator<E>

emptyIterator

back to summary

public static <E> Iterator<E> emptyIterator()

Get a typed empty iterator instance.

Parameters

<E>: the element type

Returns:Iterator<E>

Iterator<E>

resettableEmptyIterator	back to summary
public static <E> ResettableIterator<E> resettableEmptyIterator() Get a typed resettable empty iterator instance. Parameters <E> the element type Returns:ResettableIterator<E> ResettableIterator<E>

resettableEmptyIterator

back to summary

public static <E> ResettableIterator<E> resettableEmptyIterator()

Get a typed resettable empty iterator instance.