import sysExt.* ;
import testPkg.* ;


//
// Example driver for methodRef usage.
// Shows how to take a reference to a method,
// dynamically at runtime, and then make
// an object perform that referenced method...
//
class classLoadTest {

        public static void main(String args[])
        {
	    try {


		simpleObject s2 = new simpleObject (2) ;

		//-----------------------------------------------------
		// Create a reference to sayHello() method.
		// Class and package information is explicitly
		// specified..
		//
		methodRef mRef2 = methodRef.newRef("testPkg",
							"simpleObject",
							"sayGoodBye") ;

		//-----------------------------------------------------
		// set the target to s2 and make it perform 
		// the sayGoodBye() method...
		//
		mRef2.setTarget(s2) ;
		mRef2.doAction() ;


		simpleObject s3 = new simpleObject (3) ;
	
		//-----------------------------------------------------
		// Now set the target to s3 and make it perform 
		// the sayGoodBye() method...
		//
		mRef2.on( s3 ).doAction();
	

		foobar f = new foobar (4) ;

		//-----------------------------------------------------
		// Create a reference to foobar class sayHello() method.
		// Note that foobar has no package (null package)
		//
		methodRef mRef4 = methodRef.newRef(null,
							"foobar",
							"sayHello") ;

		//-----------------------------------------------------
		// Now set the target to f and make it perform 
		// the sayHello() method...
		//
		mRef4.on( f ).doAction();
	

		//-----------------------------------------------------
		// Now create a new foobar object and make it sayGoodBye
		//
 		foobar f2 = new foobar (5) ;
		methodRef mRef5 = methodRef.newRef(f2, "sayGoodBye" ) ;
		mRef5.doAction();


		//-----------------------------------------------------
		// Now create a new simpleObject....  
		//
		simpleObject s1 = new simpleObject (1);
		String aString = new String( "Hello World");

		//-----------------------------------------------------
		// ...and create a reference to its sayAnything() method.
		// Class and package information is extracted from s1
		// Target is set to s1 in newRef() call.
		// Since sayAnything() takes a string as its parameter,
		// pass the string's class to newRef()
		//
		methodRef mRef = methodRef.newRef(s1, "sayAnything",
							aString.getClass() ) ;

		//
		// dispatch sayAnything() to s1 object..
		//
		mRef.doAction( aString );


	    } catch ( Exception e ) {
			System.out.println( "Exception thrown!" ) ;
			e.printStackTrace() ;
	    } catch ( NoSuchMethodError er ) {
			System.out.println( "NoSuchMethodError  thrown!" ) ;
			er.printStackTrace() ;
	    } 

 
    }
      
}