namespace Sandbox.FactoryMethod
{
    public abstract class DocumentWriter
    {
        protected List<Document> documents = new List<Document>();
        public abstract void AddDocuments();
    }

    public class XMLDocumentWriter:DocumentWriter
    {
        public XMLDocumentWriter()
        {

        }
        public override void AddDocuments()
        {
            documents.Add(new XmlDocument());
            documents.Add(new ASCIIDocument());
            documents.Add(new ChineseDocument());
            documents.Add(new CleanDocument());
            documents.Add(new DirtyDocument());
        }
    }

    public abstract class DocumentWriterFactory
    {
        public abstract DocumentWriter CreateDocumentWriter();
    }

    public class XMLDocumentWriterFactory:DocumentWriterFactory
    {
        public XMLDocumentWriterFactory()
        {

        }
        public override DocumentWriter CreateDocumentWriter()
        {
            XMLDocumentWriter docWriter =  new XMLDocumentWriter();
            docWriter.AddDocuments();
            return docWriter;
        }
    }
}