Hello all,
I'm playing with hivemind 1.1-alpha AdapterRegistry and now that I got
some simple example working, I'm asking myself a question I can't find
an answer :)
Is there a way to do- kind of - recursion with the AdaptaterRegistry? I
explain myself: suppose I want to create an XmlAdapter service with this
interface :
public interface XmlAdapter {
toXml (Object o);
}
I could define then :
public class StringAdapter {
public String toXml (Object o) {
String value = (String) o;
return value.trim();
}
}
This works fine for "converting" a String to XML.
But now suppose I got this object to adapt :
public class Name {
private String firstName;
private String lastName;
// + getters & setters
}
A great trick would be to be able to do something like this :
public class NameAdapter {
public String toXml (Object o) {
Name value = (Name) o;
String ret = new String("<Name><FirstName>");
// Here do some trick to get a StringAdapter from the registry
ret.append(stringAdapter.toXml(value.getFirstName()));
ret.append("</FirstName><LastName>");
ret.append(stringAdapter.toXml(value.getLastName()));
ret.append("</LastName></Name>");
return ret;
}
}
Of course I tried to inject the service in
itself but this leads only to nullpointerexception ( well, I expected
something like this anyway...).
So, is there a way to do this ? Or should I try another way ? ( with
the new Chain service maybe ? )
thanks in advance for any help/pointers,
Olivier.
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