acdk::java::JavaObject

With the ACDK class acdk::java::JavaObject you can use any Java class inside C++ using the standard DMI interfaces.

Content of this chapter:

The Hello World example
DMI Interface

The Hello World example



  // create a new java object
  ::acdk::java::RJavaObject jo = new ::acdk::java::JavaObject("java/lang/StringBuffer", 
                                                              (const char*)"Hello");
  
  // call the method append of the the java object
  jo->invoke("append", (const char*)" Java from ACDK");
  
  // call the method toString of the Java object
  RObject str = (RString)jo->invoke("toString");
  
  // get the static public member of the java object
  RObject jout = ::acdk::java::JavaObject::peek_static("java/lang/System", "out");
  
  // call the invoke method of the ::acdk::langObject
  // The DMI automatically dispatches the call to the 
  // corresponding Java Object
  jout->invoke("println", str);
  
  RObject aout = System::out;
  // Same interface works also with ACDK objects.
  aout->invoke("println", str);

DMI Interface

The standard DMI interface works with following exceptions:

Object::peek_static and Object::poke_static does not map directly to the corresponding Java member.
You can use JavaObject::peek_static or Object::invoke_static(classname, "peek_static", membername) instead.