@Override
    public <T> HibernateInsertClause setNull(Path<T> path) {
        inserts.put(path, Expressions.nullExpression(path));
        return this;
    }
Set the lock mode for the given path.
@return the current object
querydsl-jpa/src/main/java/com/querydsl/jpa/hibernate/HibernateInsertClause.java