Class UnmodifiableListIterator<E>
java.lang.Object
org.apache.commons.collections4.iterators.UnmodifiableListIterator<E>
- All Implemented Interfaces:
Iterator<E>
,ListIterator<E>
,Unmodifiable
public final class UnmodifiableListIterator<E>
extends Object
implements ListIterator<E>, Unmodifiable
Decorates a list iterator such that it cannot be modified.
Attempts to modify it will result in an UnsupportedOperationException.
- Since:
- 3.0
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate final ListIterator
<? extends E> The iterator being decorated -
Constructor Summary
ConstructorsModifierConstructorDescriptionprivate
UnmodifiableListIterator
(ListIterator<? extends E> iterator) Constructor. -
Method Summary
Modifier and TypeMethodDescriptionvoid
boolean
hasNext()
boolean
next()
int
previous()
int
void
remove()
void
static <E> ListIterator
<E> umodifiableListIterator
(ListIterator<? extends E> iterator) Decorates the specified iterator such that it cannot be modified.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
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Field Details
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iterator
The iterator being decorated
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Constructor Details
-
UnmodifiableListIterator
Constructor.- Parameters:
iterator
- the iterator to decorate
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Method Details
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umodifiableListIterator
Decorates the specified iterator such that it cannot be modified.- Type Parameters:
E
- the element type- Parameters:
iterator
- the iterator to decorate- Returns:
- a new unmodifiable list iterator
- Throws:
NullPointerException
- if the iterator is null
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hasNext
public boolean hasNext() -
next
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nextIndex
public int nextIndex()- Specified by:
nextIndex
in interfaceListIterator<E>
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hasPrevious
public boolean hasPrevious()- Specified by:
hasPrevious
in interfaceListIterator<E>
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previous
- Specified by:
previous
in interfaceListIterator<E>
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previousIndex
public int previousIndex()- Specified by:
previousIndex
in interfaceListIterator<E>
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remove
public void remove() -
set
- Specified by:
set
in interfaceListIterator<E>
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add
- Specified by:
add
in interfaceListIterator<E>
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