Class UnmodifiableIterator<E>
java.lang.Object
org.apache.commons.collections4.iterators.UnmodifiableIterator<E>
- All Implemented Interfaces:
Iterator<E>
,Unmodifiable
Decorates an 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
Fields -
Constructor Summary
ConstructorsModifierConstructorDescriptionprivate
UnmodifiableIterator
(Iterator<? extends E> iterator) Constructor. -
Method Summary
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
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UnmodifiableIterator
Constructor.- Parameters:
iterator
- the iterator to decorate
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Method Details
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unmodifiableIterator
Decorates the specified iterator such that it cannot be modified.If the iterator is already unmodifiable it is returned directly.
- Type Parameters:
E
- the element type- Parameters:
iterator
- the iterator to decorate- Returns:
- a new unmodifiable iterator
- Throws:
NullPointerException
- if the iterator is null
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hasNext
public boolean hasNext() -
next
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remove
public void remove()
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