public boolean addOut(DefaultConnection con) {
EditableReader t = (EditableReader) con.getSecond();
if (out.contains(t)) return false;
out.add(t);
connections.add(con);
return true;
}
public boolean addIn(DefaultConnection con) {
EditableWriter t = (EditableWriter) con.getFirst();
if (in.contains(t)) return false;
in.add(t);
connections.add(con);
return true;
}
