Setting a parameter as a list for an IN expression

Question

Whenever I try to set a list as a parameter for use in an IN expression I get an Illegal argument exception. Various posts on the internet seem to indicate that this is poss

Answer 1

You can also try this syntax.

static public String generateCollection(List list){
    if(list == null || list.isEmpty())
        return "()";
    String result = "( ";
    for(Iterator it = list.iterator();it.hasNext();){
        Object ob = it.next();
        result += ob.toString();
        if(it.hasNext())
            result += " , ";
    }
    result += " )";
    return result;
}

And put into query, "Select * from Class where field in " + Class.generateCollection(list);