public int compareTo(Double o) {
        Double d = (score == null ? Double.valueOf(0) : score);
        Double a = (o == null ? Double.valueOf(0) : o);
        return d.compareTo(a);
    }
public int compareTo(Double o) {
        Double d = (score == null ? Double.valueOf(0) : score);
        Double a = (o == null ? Double.valueOf(0) : o);
        return d.compareTo(a);
    }
public int compareTo ( Double o ) { Double d = ( score == null ? Double . valueOf ( 0 ) : score ) ; Double a = ( o == null ? Double . valueOf ( 0 ) : o ) ; return d . compareTo ( a ) ; }
/*
@see java.lang.Comparable#compareTo(java.lang.Object)
/ *