Wrapper Generation Example

FUNCTION helloworld::INIT 
   RETURN, 1 
END 
 
PRO helloworld__define 
   struct = {helloworld, $ 
      dummy:0b $	; dummy structure field, not a property 
   } 
END 
 
This is the source object definition file that you will export using the Export Bridge Assistant. 

Imports helloworldLib 
Module Module1 
    Dim oHello As New helloworldLib.helloworldClass 
    Sub Main() 
         Try 
            oHello.CreateObject(0, 0, 0) 
            Catch ex As Exception 
            Console.WriteLine(oHello.GetLastError()) 
            Return 
         End Try 
      AddHandler oHello.OnIDLOutput, AddressOf evOutput 
      oHello.ExecuteString("Print, 'Hello World'") 
   End Sub 
   Sub evOutput(ByVal ss As String) 
      Console.WriteLine(ss) 
   End Sub 
End Module 
 
In this example, the stock ExecuteString method is used to print the hello world message. By adding a handler for the OnIDLOutput method, the console application is able to capture and output the information that would typically be printed to the Output window of IDL. After building the solution and starting without debugging, the console window appears with the output messages.

package helloworld; 
import com.idl.javaidl.*; 
public class helloworld_example extends helloworld 
implements JIDLOutputListener 
{ 
   private helloworld hwObj; 
 
   // Constructor 
   public helloworld_example() { 
      hwObj = new helloworld(); 
      hwObj.createObject(); 
      hwObj.addIDLOutputListener(this); 
      hwObj.executeString("print, 'Hello World'"); 
   } 
 
   // implement JIDLOutputListener 
   public void IDLoutput(JIDLObjectI obj, String sMessage) { 
      System.out.println("IDL: "+sMessage); 
   } 
 
   public static void main(String[] argv) { 
      helloworld_example example = new helloworld_example(); 
   } 
} 


Note

By default, the Assistant generates a package so any Java routine using an exported wrapper object must include the package name. The second statement, import com.idl.javaidl.*; is also required. 
 
For example purposes, the stock method executeString is called, and an output listener is registered to retrieve the IDL output.

cd C:\ITT\IDL63 

javac -classpath 
   ".;IDL_DIR\resource\bridges\export\java\javaidlb.jar" 
   helloworld\helloworld_example.java 
java -classpath 
   ".;IDL_DIR\resource\bridges\export\java\javaidlb.jar" 
   helloworld.helloworld_example 
 
In both commands, the . character includes the current directory in the classpath. 
 
The first command uses javac to compile the example client. The path to the helloworld_example.java file is specified using a backslash character as a directory separator.
 
The second command uses java to run the example client. The final argument specifies the package path to the helloworld_example class file. Note that a . character is used as a separator in the package path. The final argument to the second command intentionally omits the suffix.