Class ReadOnlyIterator

  • All Implemented Interfaces:
    Iterator

    public class ReadOnlyIterator
    extends Object
    implements Iterator
    Protects an given iterator by preventing calls to remove().
    Author:
    Thomas Morgner
    • Constructor Detail

      • ReadOnlyIterator

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

      • 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 interface Iterator
        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.
        Specified by:
        next in interface Iterator
        Returns:
        the next element in the iteration.
      • remove

        public void remove()
        Throws UnsupportedOperationException.
        Specified by:
        remove in interface Iterator