Hibernate搜索与多个实体的分页

Question

我需要在多个实体上实现搜索（有效），我需要在搜索上实现分页（这不起作用）。

所以我做的是：

        //creates the initial BooleanJunction from the first QueryBuilder
        boolJunc = allQueryBuilders.get(0).bool();

        for (QueryBuilder buildeForCurrentEntity: allQueryBuilders) {
            boolJunc.should(buildeForCurrentEntity.keyword().onFields(searchedFields).matching(searchText).createQuery());
        }
        //after all BolleanJunctions are set, creates the final lucene query
        org.apache.lucene.search.Query mainLuceneQuery = boolJunc.createQuery();
        FullTextQuery jpaQuery = fullTextSession.createFullTextQuery(mainLuceneQuery, classes); //classes is array of all classes used to make those QueryBuilder's

        //set pagination parameters
        jpaQuery.setFirstResult(firstResultIndex);
        jpaQuery.setMaxResults(maxNumberOfResults);

        List<?> result = jpaQuery.list();

对于找到10个结果的搜索字词：

    if i set my paging parameters as firstResultIndex = 0 and maxNumberOfResults = 50, then it works normally
    if its firstResultIndex = 0 and maxNumberOfResults = 5 then it dosn't return anything
    if its firstResultIndex = 4 and maxNumberOfResults = 50 then it ignores firstResultIndex and just returns all 10 results

我有什么遗失的吗？我如何在我的案例中进行分页工作？