Package it.unimi.dsi.fastutil.objects
Class ObjectIterators.EmptyIterator<K>
- java.lang.Object
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- it.unimi.dsi.fastutil.objects.ObjectIterators.EmptyIterator<K>
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- All Implemented Interfaces:
BidirectionalIterator<K>
,ObjectBidirectionalIterator<K>
,ObjectIterator<K>
,ObjectListIterator<K>
,java.io.Serializable
,java.lang.Cloneable
,java.util.Iterator<K>
,java.util.ListIterator<K>
- Enclosing class:
- ObjectIterators
public static class ObjectIterators.EmptyIterator<K> extends java.lang.Object implements ObjectListIterator<K>, java.io.Serializable, java.lang.Cloneable
A class returning no elements and a type-specific iterator interface.This class may be useful to implement your own in case you subclass a type-specific iterator.
- See Also:
- Serialized Form
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
back(int n)
Moves back for the given number of elements.java.lang.Object
clone()
boolean
hasNext()
boolean
hasPrevious()
Returns whether there is a previous element.K
next()
int
nextIndex()
K
previous()
Returns the previous element from the collection.int
previousIndex()
int
skip(int n)
Skips the given number of elements.-
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface it.unimi.dsi.fastutil.objects.ObjectListIterator
add, remove, set
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Method Detail
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hasNext
public boolean hasNext()
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hasPrevious
public boolean hasPrevious()
Description copied from interface:BidirectionalIterator
Returns whether there is a previous element.- Specified by:
hasPrevious
in interfaceBidirectionalIterator<K>
- Specified by:
hasPrevious
in interfacejava.util.ListIterator<K>
- Returns:
- whether there is a previous element.
- See Also:
ListIterator.hasPrevious()
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next
public K next()
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previous
public K previous()
Description copied from interface:BidirectionalIterator
Returns the previous element from the collection.- Specified by:
previous
in interfaceBidirectionalIterator<K>
- Specified by:
previous
in interfacejava.util.ListIterator<K>
- Returns:
- the previous element from the collection.
- See Also:
ListIterator.previous()
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nextIndex
public int nextIndex()
- Specified by:
nextIndex
in interfacejava.util.ListIterator<K>
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previousIndex
public int previousIndex()
- Specified by:
previousIndex
in interfacejava.util.ListIterator<K>
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skip
public int skip(int n)
Description copied from interface:ObjectBidirectionalIterator
Skips the given number of elements.The effect of this call is exactly the same as that of calling
Iterator.next()
forn
times (possibly stopping ifIterator.hasNext()
becomes false).- Specified by:
skip
in interfaceObjectBidirectionalIterator<K>
- Specified by:
skip
in interfaceObjectIterator<K>
- Parameters:
n
- the number of elements to skip.- Returns:
- the number of elements actually skipped.
- See Also:
Iterator.next()
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back
public int back(int n)
Description copied from interface:ObjectBidirectionalIterator
Moves back for the given number of elements.The effect of this call is exactly the same as that of calling
BidirectionalIterator.previous()
forn
times (possibly stopping ifBidirectionalIterator.hasPrevious()
becomes false).- Specified by:
back
in interfaceObjectBidirectionalIterator<K>
- Parameters:
n
- the number of elements to skip back.- Returns:
- the number of elements actually skipped.
- See Also:
BidirectionalIterator.previous()
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clone
public java.lang.Object clone()
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