SingleRowCursor

A cursor with at most one row.

Methods
	SingleRowCursor(Row row) Create a new cursor.
	SingleRowCursor(Row row) Create a new cursor. Parameters: row - - the single row (if null then cursor is empty)
Row	get()
Row	get()
SearchRow	getSearchRow()
SearchRow	getSearchRow()
boolean	next()
boolean	next()
boolean	previous()
boolean	previous()