Question

I was trying to write a search query in hibernate. I took help from open-meeting source code.
So my query:

public User getAllUser(String search) {
    String[] searchItems = search.split(" ");
    try {
        String sqlQuery = "SELECT * FROM  USER u " + "WHERE u.deleted = 1 ";
        sqlQuery += "AND ( ";
        for (int i = 0; i < searchItems.length; i++) {
            if (i != 0) {
                sqlQuery += " OR ";
            }
            sqlQuery += "( " + "lower(u.last_name) LIKE '"
                    + StringUtils.lowerCase("%" + searchItems[i] + "%")
                    + "' " + "OR lower(u.first_name) LIKE '"
                    + StringUtils.lowerCase("%" + searchItems[i] + "%")
                    + "' " + "OR lower(u.username) LIKE '"
                    + StringUtils.lowerCase("%" + searchItems[i] + "%")
                    + "' " + ") ";
        }
        sqlQuery += " )";

        log.debug("sqlQuery : " + sqlQuery);
        Query query = sessionFactory.getCurrentSession().createQuery(
                sqlQuery);

        return (User) query.list().get(0);

    } catch (HibernateException e) {
        e.printStackTrace();
    }
    return null;
}

It says there is an unexpected token, I but I didn’t find where it is.

So I have two questions:

1. how to make it functional.
2. how to write search query using Criteria and Projection/Restrictions in hibernate

Answer 1

This is not a hibernate query. It is a native SQl. You should use createSQLQuery as below

Query query = sessionFactory.getCurrentSession().createSqlQuery(
                sqlQuery);

Refer this for select using hibernate.

Also, I would suggest you to go with Criterias