Package org.jfree.util
Class HashNMap.EmptyIterator
- java.lang.Object
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- org.jfree.util.HashNMap.EmptyIterator
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- All Implemented Interfaces:
java.util.Iterator
- Enclosing class:
- HashNMap
private static final class HashNMap.EmptyIterator extends java.lang.Object implements java.util.Iterator
An helper class to implement an empty iterator. This iterator will always return false whenhasNext
is called.
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Constructor Summary
Constructors Modifier Constructor Description private
EmptyIterator()
DefaultConstructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
hasNext()
Returns true if the iteration has more elements.java.lang.Object
next()
Returns the next element in the iteration.void
remove()
Removes from the underlying collection the last element returned by the iterator (optional operation).
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Method Detail
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hasNext
public boolean hasNext()
Returns true if the iteration has more elements. (In other words, returns true if next would return an element rather than throwing an exception.)- Specified by:
hasNext
in interfacejava.util.Iterator
- Returns:
- true if the iterator has more elements.
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next
public java.lang.Object next()
Returns the next element in the iteration.- Specified by:
next
in interfacejava.util.Iterator
- Returns:
- the next element in the iteration.
- Throws:
java.util.NoSuchElementException
- iteration has no more elements.
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remove
public void remove()
Removes from the underlying collection the last element returned by the iterator (optional operation). This method can be called only once per call to next. The behavior of an iterator is unspecified if the underlying collection is modified while the iteration is in progress in any way other than by calling this method.- Specified by:
remove
in interfacejava.util.Iterator
- Throws:
java.lang.UnsupportedOperationException
- if the remove operation is not supported by this Iterator.java.lang.IllegalStateException
- if the next method has not yet been called, or the remove method has already been called after the last call to the next method.
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