org.jfree.util

Class ReadOnlyIterator

Implemented Interfaces:
Iterator

public class ReadOnlyIterator
extends java.lang.Object
implements Iterator

Protects an given iterator by preventing calls to remove().
Author:
Thomas Morgner

Constructor Summary

ReadOnlyIterator(Iterator it)
Creates a new read-only iterator for the given iterator.

Method Summary

boolean
hasNext()
Returns true if the iteration has more elements.
Object
next()
Returns the next element in the iteration.
void
remove()
Throws UnsupportedOperationException.

Constructor Details

ReadOnlyIterator

public ReadOnlyIterator(Iterator it)
Creates a new read-only iterator for the given iterator.
Parameters:
it - the iterator.

Method Details

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.)
Returns:
true if the iterator has more elements.

next

public Object next()
Returns the next element in the iteration. Throws NoSuchElementException when iteration has no more elements.
Returns:
the next element in the iteration.

remove

public void remove()
Throws UnsupportedOperationException.