Class EmptyIterator<E>
java.lang.Object
org.apache.commons.collections4.iterators.AbstractEmptyIterator<E>
org.apache.commons.collections4.iterators.EmptyIterator<E>
- All Implemented Interfaces:
Iterator<E>
,ResettableIterator<E>
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
.
- Since:
- 2.1.1 and 3.1
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final Iterator
Singleton instance of the iterator.static final ResettableIterator
Singleton instance of the iterator. -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic <E> Iterator
<E> Get a typed empty iterator instance.static <E> ResettableIterator
<E> Get a typed resettable empty iterator instance.Methods inherited from class org.apache.commons.collections4.iterators.AbstractEmptyIterator
add, hasNext, hasPrevious, next, nextIndex, previous, previousIndex, remove, reset, set
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface java.util.Iterator
forEachRemaining, hasNext, next, remove
Methods inherited from interface org.apache.commons.collections4.ResettableIterator
reset
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Field Details
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RESETTABLE_INSTANCE
Singleton instance of the iterator.- Since:
- 3.1
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INSTANCE
Singleton instance of the iterator.- Since:
- 2.1.1 and 3.1
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Constructor Details
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EmptyIterator
protected EmptyIterator()Constructor.
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Method Details
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resettableEmptyIterator
Get a typed resettable empty iterator instance.- Type Parameters:
E
- the element type- Returns:
- ResettableIterator<E>
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emptyIterator
Get a typed empty iterator instance.- Type Parameters:
E
- the element type- Returns:
- Iterator<E>
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