Advances to the next document in the set and returns the doc it is currently on, or {@link #NO_MORE_DOCS} if there are no more docs in the set.
NOTE: in 3.0 this method will become abstract, following the removal of {@link #Next()}. For backward compatibility it is implemented as:

            public int nextDoc() throws IOException {
            return next() ? doc() : NO_MORE_DOCS;
            }
            

NOTE: after the iterator has exhausted you should not call this method, as it may result in unpredicted behavior.

public virtual int NextDoc()

Public Overridable Function NextDoc As Integer

public:
virtual int NextDoc()