ResultSet


The JDBC module uses the IResultSet interface to encapsulate the result sets of data queries and integrates paging parameters. The following code introduces how to use the IResultSet object:

IResultSet<User> _results = JDBC.get().openSession(new ISessionExecutor<IResultSet<User>>() {
    public IResultSet<User> execute(ISession session) throws Exception {
        return session.find(EntitySQL.create(User.class), Page.create(1).pageSize(10));
    }
});

// 返回当前是否分页查询
boolean _isPaginated = _results.isPaginated();

// 当前结果集是否可用,即是否为空或元素数量为0
boolean _isAvailable = _results.isResultsAvailable();

// 返回当前页号
int _pNumber = _results.getPageNumber();

// 返回每页记录数
int _pSize = _results.getPageSize();

// 返回总页数
int _pCount = _results.getPageCount();

// 返回总记录数
long _rCount = _results.getRecordCount();

// 返回结果集数据
List<User> _users = _results.getResultData();

Note:

  • Page paging parameters will affect whether the return value of the total number of pages and total number of records is 0;

When Page.create(1).pageSize(10).count(false) is executed, the count calculation of the total number of records will not be performed;

  • Non-page query The paging parameter values ​​returned when are all 0;