no method body

[mydavor]

What is the meaning/function of the following declaration of getInitData method ? There is no body whatsoever, so what does getInitData actually do (obviously it is not inherited)?

import java.util.Vector;
import javax.servlet.http.*;

public interface DataSelectionServInterface {

public Vector getInitData(Vector lVectorIds,HttpSession httpsession);
}

 

[sedj]

That class is an interface - it defines what methods any implementing class should have. Eg :

public class DataSelectionServImpl implements DataSelectionServInterface {

    public Vector getInitData(Vector lVectorIds,HttpSession httpsession) {
          Vector v = new Vector();
          // do some stuff
          return v;
    }
}

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