Class SingleObjectIterator

  • All Implemented Interfaces:
    java.util.Iterator
    Direct Known Subclasses:
    SelfAxisIterator

    public class SingleObjectIterator
    extends java.lang.Object
    implements java.util.Iterator
    Simple utility class that wraps an iterator around one object. This is a little more efficent than creating a one-object list.
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private java.lang.Object object  
      private boolean seen  
    • Constructor Summary

      Constructors 
      Constructor Description
      SingleObjectIterator​(java.lang.Object object)
      Creates a new single object iterator.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean hasNext()
      Returns true if this iterator's element has not yet been seen; false if it has.
      java.lang.Object next()
      Returns the single element in this iterator if it has not yet been seen.
      void remove()
      This operation is not supported.
      • 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
    • Field Detail

      • object

        private java.lang.Object object
      • seen

        private boolean seen
    • Constructor Detail

      • SingleObjectIterator

        public SingleObjectIterator​(java.lang.Object object)
        Creates a new single object iterator.
        Parameters:
        object - the object to iterate over
    • Method Detail

      • hasNext

        public boolean hasNext()
        Returns true if this iterator's element has not yet been seen; false if it has.
        Specified by:
        hasNext in interface java.util.Iterator
        Returns:
        true if this iterator has another element; false if it doesn't
        See Also:
        Iterator.hasNext()
      • next

        public java.lang.Object next()
        Returns the single element in this iterator if it has not yet been seen.
        Specified by:
        next in interface java.util.Iterator
        Returns:
        the next element in this iterator
        Throws:
        java.util.NoSuchElementException - if the element has already been seen
        See Also:
        Iterator.next()
      • remove

        public void remove()
        This operation is not supported.
        Specified by:
        remove in interface java.util.Iterator
        Throws:
        java.lang.UnsupportedOperationException - always