Update bridge pattern examples

Author: nemanjarogic

src/StructuralPatterns/Adapter/AdapterLibrary/BillingSystemExample/BillingSystemExecutor.cs

@@ -21,6 +21,8 @@ public static void Execute()
         // but since it isn't compatible with the 3rd party billing system interface we must use adapter.
         // The 3rd party billing system expects List<Employee>, but the current HR system works only with string[,].
         // Hide that using adapter design pattern (note that the client is not aware of what's happening under the hood).
+        // The client code doesn't get coupled to the concrete adapter class as long as it works with the adapter via the interface.
+        // In this case the client is coupled with the concrete adapter class only because we don't use dependency injection for demo purposes.
         ISalaryProcessor salaryProcessor = new HRSystemAdapter();
         salaryProcessor.ProcessSalaries(employeesInfo);
     }

src/StructuralPatterns/Bridge/BridgeLibrary/DevicesAndRemotesExample/Abstractions/AdvancedRemoteControl.cs

@@ -15,4 +15,4 @@ public virtual void Mute()
         Console.WriteLine("Mute smart TV Command is issued through advanced remote.");
         _device.Volume = 0;
     }
-}
+}

src/StructuralPatterns/Bridge/BridgeLibrary/DevicesAndRemotesExample/Abstractions/Common/RemoteControl.cs

@@ -12,7 +12,7 @@ public abstract class RemoteControl
     protected readonly Device _device;
     protected readonly int _volumeChangeStep;
 
-    public RemoteControl(Device device)
+    protected RemoteControl(Device device)
     {
         _device = device;
         _volumeChangeStep = 5;
@@ -72,4 +72,4 @@ public void ChannelDown()
 
         _device.Channel = newChannel;
     }
-}
+}

src/StructuralPatterns/Bridge/BridgeLibrary/DevicesAndRemotesExample/Abstractions/UniversalRemoteControl.cs

@@ -9,4 +9,4 @@ public UniversalRemoteControl(Device device)
         : base(device)
     {
     }
-}
+}

src/StructuralPatterns/Bridge/BridgeLibrary/DevicesAndRemotesExample/DevicesAndRemotesExecutor.cs

@@ -21,4 +21,4 @@ public static void Execute()
         advancedRemote.Mute();
         advancedRemote.TogglePower();
     }
-}
+}

src/StructuralPatterns/Bridge/BridgeLibrary/DevicesAndRemotesExample/Implementations/Common/Device.cs

@@ -12,7 +12,7 @@ public abstract class Device
     private int _volume;
     private int _channel;
 
-    public Device()
+    protected Device()
     {
         Console.WriteLine("Device turning on process started...");
 
@@ -24,10 +24,7 @@ public Device()
 
     public int Volume
     {
-        get
-        {
-            return _volume;
-        }
+        get => _volume;
         set
         {
             _volume = value;
@@ -37,10 +34,7 @@ public int Volume
 
     public int Channel
     {
-        get
-        {
-            return _channel;
-        }
+        get => _channel;
         set
         {
             _channel = value;
@@ -52,13 +46,9 @@ public int Channel
 
     public bool IsTurnedOn { get; private set; }
 
-    public virtual void TurnOn()
-    {
+    public virtual void TurnOn() =>
         IsTurnedOn = true;
-    }
 
-    public virtual void TurnOff()
-    {
+    public virtual void TurnOff() =>
         IsTurnedOn = false;
-    }
-}
+}

src/StructuralPatterns/Bridge/BridgeLibrary/DevicesAndRemotesExample/Implementations/Radio.cs

@@ -15,4 +15,4 @@ public override void TurnOff()
         base.TurnOff();
         Console.WriteLine("Radio is turned off.");
     }
-}
+}

src/StructuralPatterns/Bridge/BridgeLibrary/DevicesAndRemotesExample/Implementations/SmartTV.cs

@@ -15,4 +15,4 @@ public override void TurnOff()
         base.TurnOff();
         Console.WriteLine("Smart TV is turned off.");
     }
-}
+}

src/StructuralPatterns/Bridge/BridgeLibrary/DocumentsAndFormattersExample/Documents/Book.cs

@@ -10,17 +10,15 @@ public Book(IFormatter formatter)
     {
     }
 
-    public string Title { get; set; }
-
-    public string Author { get; set; }
-
-    public string Text { get; set; }
+    public string Title { get; set; } = string.Empty;
+    public string Author { get; set; } = string.Empty;
+    public string Text { get; set; } = string.Empty;
 
     public override void Print()
     {
-        Console.WriteLine(formatter.Format("Title", Title));
-        Console.WriteLine(formatter.Format("Author", Author));
-        Console.WriteLine(formatter.Format("Text", Text));
+        Console.WriteLine(_formatter.Format("Title", Title));
+        Console.WriteLine(_formatter.Format("Author", Author));
+        Console.WriteLine(_formatter.Format("Text", Text));
         Console.WriteLine();
     }
-}
+}

src/StructuralPatterns/Bridge/BridgeLibrary/DocumentsAndFormattersExample/Documents/Common/Document.cs

@@ -4,12 +4,12 @@ namespace BridgeLibrary.DocumentsAndFormattersExample.Documents.Common;
 
 public abstract class Document
 {
-    protected readonly IFormatter formatter;
+    protected readonly IFormatter _formatter;
 
-    public Document(IFormatter formatter)
+    protected Document(IFormatter formatter)
     {
-        this.formatter = formatter;
+        _formatter = formatter;
     }
 
     public abstract void Print();
-}
+}