Decorator Pattern Code Review

Use the Decorator Pattern

Code Review

Code Walkthrough

Create an instance of the Stream class (object) and pass it as a parameter to the StreamDecorator class (object).

Stream fStrm = null; StreamDecorator dStrm = null; Byte[] bytes; Int32 bytesToRead;
try { this.textBox1.Text = String.Empty; this.textBox1.Refresh();
fStrm = new FileStream("streamDecorator.txt", FileMode.Open, FileAccess.Read); dStrm = new StreamDecorator(fStrm);
bytes = new Byte[dStrm.Length]; bytesToRead = dStrm.NumBytesToRead; dStrm.MaxBytesToRead = 50;
progressBar1.Minimum = 0; progressBar1.Maximum = dStrm.NumBytesToRead;
while (bytesToRead > 0) { bytesToRead = dStrm.Read(bytes); progressBar1.Value = dStrm.TotalBytesRead; this.label2.Text = dStrm.TotalBytesRead.ToString(); this.label2.Refresh(); } this.textBox1.Text = dStrm.ReadText; this.textBox1.Refresh(); } catch(Exception ex) { MessageBox.Show(ex.Message); } finally { dStrm.Close(); fStrm.Close(); }

Invoke the standard Stream methods, as well as, the new custom operations in the StreamDecorator class (object).

Decorator Pattern Code Review

Use the Decorator Pattern

Code Review

Code Walkthrough

More Information

Code Review

Design Patterns

Share Content