Class EmptyListIterator<E>
- java.lang.Object
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- org.apache.commons.collections4.iterators.EmptyListIterator<E>
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- All Implemented Interfaces:
java.util.Iterator<E>,java.util.ListIterator<E>,OrderedIterator<E>,ResettableIterator<E>,ResettableListIterator<E>
public class EmptyListIterator<E> extends java.lang.Object implements ResettableListIterator<E>
Provides an implementation of an empty list iterator.This class provides an implementation of an empty list 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
Fields Modifier and Type Field Description static java.util.ListIteratorINSTANCESingleton instance of the iterator.static ResettableListIteratorRESETTABLE_INSTANCESingleton instance of the iterator.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description voidadd(E obj)static <E> java.util.ListIterator<E>emptyListIterator()Get a typed instance of the iterator.booleanhasNext()booleanhasPrevious()Enext()intnextIndex()Eprevious()intpreviousIndex()voidremove()voidreset()static <E> ResettableListIterator<E>resettableEmptyListIterator()Get a typed instance of the iterator.voidset(E obj)-
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface java.util.ListIterator
add, hasNext, hasPrevious, next, nextIndex, previous, previousIndex, remove, set
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Methods inherited from interface org.apache.commons.collections4.OrderedIterator
hasPrevious, previous
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Methods inherited from interface org.apache.commons.collections4.ResettableIterator
reset
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Field Detail
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RESETTABLE_INSTANCE
public static final ResettableListIterator RESETTABLE_INSTANCE
Singleton instance of the iterator.- Since:
- 3.1
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INSTANCE
public static final java.util.ListIterator INSTANCE
Singleton instance of the iterator.- Since:
- 2.1.1 and 3.1
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Method Detail
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resettableEmptyListIterator
public static <E> ResettableListIterator<E> resettableEmptyListIterator()
Get a typed instance of the iterator.- Type Parameters:
E- the element type- Returns:
ResettableListIterator<E>
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emptyListIterator
public static <E> java.util.ListIterator<E> emptyListIterator()
Get a typed instance of the iterator.- Type Parameters:
E- the element type- Returns:
ListIterator<E>
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hasNext
public boolean hasNext()
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next
public E next()
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hasPrevious
public boolean hasPrevious()
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previous
public E previous()
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nextIndex
public int nextIndex()
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previousIndex
public int previousIndex()
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add
public void add(E obj)
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set
public void set(E obj)
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remove
public void remove()
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reset
public void reset()
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