How to map an ArrayList of primitives to a single column?

Question

Let\'s say I have the following situation:

Object Car has an ArrayList of prices, which are all numbers. Is it possible in Hibernate to save all the prices in a sin

Answer 1

AFAIR, Hibernate will use native serialization and store the resulting bytes in your column. I wouldn't do that though, and use a dedicated transformation that would make the prices readable in the database, and at least be able to use the data without needing Java native serialization:

@Basic
private String prices;

public void setPrices(List prices) {
    this.prices = Joiner.on(',').join(prices);
}

public List getPrices() {
    List result = new ArrayList();
    for (String s : Splitter.on(',').split(this.prices)) {
        result.add(Integer.valueOf(s));
    }
    return result;
}