Differences

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--- compcode [2007/06/13 05:34] – lavirotte
+++ compcode [2011/01/05 15:33] – update again hourdin
@@ Line 1: / Line 1: @@
+====== Sample of a Bean ======
+===== Source Code =====
+Here is a sample code of a component in C# (save this to a file called Your_CSharpBean_Name.cs) :
 <code csharp>
-using WComp.Beans; // It contains the definition of the attribute [Bean]
+using WComp.Beans;      // Contains the definition of the [Bean] attribute
 using System.Threading; // For the thread demo purposes
@@ Line 6: / Line 12: @@
     [Bean]
-    public class Your_CSharpBean_Name {
+    public class Your_CSharpBean_Name : IThreadCreator {
+        private Thread t;      // Private attributes of the class
+        private volatile bool run;
+        private volatile int eventValue;
         public Your_CSharpBean_Name() {
             // Put here your init instructions
-            // Example of a loop that call the output
+            t = new Thread(new ThreadStart(ThreadLoopMethod));
-            // every second.
+            run = false;
-            new Thread(new ThreadStart(ThreadLoopMethod)).Start();
+            eventValue = 10;
         }
+        public void Start() {  // method starting the thread
+            if (!run) {
+                run = true;
+                t.Start();
+            }
+        }
+        public void Stop() {   // since version 2.4.0.856,
+            run = false;       // IThreadCreator defines the Stop() method
+        }
          // Loop sample
          public void ThreadLoopMethod() {
-             while(Thread.CurrentThread.IsAlive) {
+             while(run) {
                  Thread.Sleep(1000);
-                 double result;
                  // Check if the output is connected
                  if(Output_Sample != null)
                      // call the connected methods sequentially
-                     result = Output_Sample(123);
+                     Output_Sample(eventValue);
                 // and so on...
              }
@@ Line 29: / Line 47: @@
         // --- Start: Input port sample ---
-        // an input port is a method (below)
+        // an input port is a public method (like below)
-        public int Input_Sample(string param_name) {
+        public void Input_Sample(int intParam) {
-            string pn = param_name; // You may use the parameters
+            eventValue = intParam;
-            return 0; // You may return anything
+            // No return value is expected in WComp:
+            // results are given using events
         }
         // --- End: Input port sample ---
         // --- Start: Output port sample ---
-        public delegate double Output_Sample_Signature(int param_name);
+        public delegate void Output_Sample_Signature(int val);
-        // This is the signature of the output method
+        // The delegate defines the signature of the output method
         public event Output_Sample_Signature Output_Sample;
-        // The output port is the event (before)
+        // The output port is the event, named here Output_Sample
         // --- End: Output port sample ---
     }
 }
 </code>
+===== Compilation =====
+Here is a sample of the command line compilation:
+<code>
+csc.exe /target:library /r:Beans.dll Sample_Component.cs
+</code>
+You will find Beans.dll in the SharpWComp distrib.