如何在nhibernate中使用ToFuture？
假设我有这些疑问如何在nhibernate中使用ToFuture？,nhibernate,hql,eager-loading,Nhibernate,Hql,Eager Loading,假设我有这些疑问 // Linq var allRecords = session.Query<Table1P>().FetchMany(x => x.Table2).FetchMany(x => x.Table3).FetchMany(x => x.Table4).FetchMany(x => x.Table6).ToList(); // Hql string hqlQuery = @"from Table1 tbl1
// Linq
var allRecords = session.Query<Table1P>().FetchMany(x => x.Table2).FetchMany(x => x.Table3).FetchMany(x => x.Table4).FetchMany(x => x.Table6).ToList();
// Hql
string hqlQuery = @"from Table1 tbl1
left join fetch tbl1.Table2 tbl2
left join fetch tbl1.Table3
left join fetch tbl1.Table4
left join fetch tbl1.Table6
left join fetch tbl2.Table5s";
//Linq
var allRecords=session.Query（）.FetchMany（x=>x.Table2）.FetchMany（x=>x.Table3.FetchMany（x=>x.Table4.FetchMany）（x=>x.Table6.ToList（）；
//Hql
表1 tbl1中的字符串hqlQuery=@
左连接获取tbl1.Table2 tbl2
左连接获取tbl1.3
左连接获取tbl1.4
左连接获取tbl1.6
左连接获取tbl2.Table5s”；
var allRecords=session.Query（）.FetchMany（x=>x.Table2）.FetchMany（x=>x.Table3）.FetchMany（x=>x.Table4）.FetchMany（x=>x.Table6）.Take（3000）.ToList（）；
//结果（2.731秒），行数3000，持续时间8毫秒/2013毫秒
选择TOP（3000/*@p0*/）表1p0.Id作为Id1\u 0，
表2x1\u.Id为Id2\u 1\u，
表3x2_u2;Id为Id3_2_2;，
表4x3\u.Id为Id4\u 3\u，
表6x4.Id为Id6\u 4，
表1p0.F1为F2\u 1\u 0，
表1p0.F2为F3\u 1\u 0，
表1p0.F3为F4\u 1\u 0，
表2X1.F1为F2_2_1_，
表2X1.F2为F3_2_1_，
表2x1.F3为F4\u 2\u 1，
表2x1\u。表1\u id为表5\u 2\u 1\u，
表2x1\u。表1\u id为表5\u 0\u，
表2X1.Id为Id0，
表3x2.F1为F2\u 3\u 2，
表3x2.F2为F3\u 3\u 2，
表3x2.F3为F4\u 3\u 2，
表3x2.表1\u id为表5\u 3\u 2\u，
表3x2.表1\u id为表5\u 1\u，
表3x2.Id为Id1，
表4x3.F1为F2\u 4\u 3，
表4X3.F2为F3\U 4\U 3，
表4x3.F3为F4\u 4\u 3，
表4x3\u。表1\u id为表5\u 4\u 3\u，
表4x3.表1\u id为表5\u 2\u，
表4x3.Id为Id2，
表6X4.F1为F2\U 6\U 4，
表6X4.F2为F3\U 6\U 4，
表6X4.F3为F4\U 6\U 4，
表6x4。表1作为表5,6,4，
表6x4.表1\u id为表5\u 3\u，
表6x4作为Id3的Id__
从表1到表1p0_
左外连接[表2]表2X1_
在table1p0.Id=table2x1.Table1\u Id上
左外连接[表3]表3x2_
在table1p0.Id=table3x2.Table1\u Id上
左外连接[表4]表4x3_
在表1p0.Id=表4x3\u.Table1\u Id上
左外连接[表6]表6X4_
在表1p0.Id=表6x4.Table1\u Id上
// result (4.808 seconds), row count 6944 / 75/ 374, duration 1ms / 4022 ms
// will load the Entities with Table2 fetched
var allRecords = session.Query<Table1P>()
.FetchMany(x => x.Table2)
.ToFuture()
.Take(3000);
// will load the Entities with Table3 fetched
session.Query<Table1P>()
.FetchMany(x => x.Table3)
.ToFuture();
// will load the Entities with Table4 fetched
session.Query<Table1P>()
.FetchMany(x => x.Table4)
.ToFuture();
// will load the Entities with Table6 fetched
session.Query<Table1P>()
.FetchMany(x => x.Table6)
.ToFuture();
// will trigger all queries at once and the session cache will make sure,
// that the results of all queries fill the same Entities
allRecords.ToList();
select table1p0_.Id as Id1_0_,
table2x1_.Id as Id2_1_,
table1p0_.F1 as F2_1_0_,
table1p0_.F2 as F3_1_0_,
table1p0_.F3 as F4_1_0_,
table2x1_.F1 as F2_2_1_,
table2x1_.F2 as F3_2_1_,
table2x1_.F3 as F4_2_1_,
table2x1_.Table1_id as Table5_2_1_,
table2x1_.Table1_id as Table5_0__,
table2x1_.Id as Id0__
from Table1 table1p0_
left outer join [Table2] table2x1_
on table1p0_.Id = table2x1_.Table1_id;
select table1p0_.Id as Id1_0_,
table3x1_.Id as Id3_1_,
table1p0_.F1 as F2_1_0_,
table1p0_.F2 as F3_1_0_,
table1p0_.F3 as F4_1_0_,
table3x1_.F1 as F2_3_1_,
table3x1_.F2 as F3_3_1_,
table3x1_.F3 as F4_3_1_,
table3x1_.Table1_id as Table5_3_1_,
table3x1_.Table1_id as Table5_0__,
table3x1_.Id as Id0__
from Table1 table1p0_
left outer join [Table3] table3x1_
on table1p0_.Id = table3x1_.Table1_id;
select table1p0_.Id as Id1_0_,
table4x1_.Id as Id4_1_,
table1p0_.F1 as F2_1_0_,
table1p0_.F2 as F3_1_0_,
table1p0_.F3 as F4_1_0_,
table4x1_.F1 as F2_4_1_,
table4x1_.F2 as F3_4_1_,
table4x1_.F3 as F4_4_1_,
table4x1_.Table1_id as Table5_4_1_,
table4x1_.Table1_id as Table5_0__,
table4x1_.Id as Id0__
from Table1 table1p0_
left outer join [Table4] table4x1_
on table1p0_.Id = table4x1_.Table1_id;
select table1p0_.Id as Id1_0_,
table6x1_.Id as Id6_1_,
table1p0_.F1 as F2_1_0_,
table1p0_.F2 as F3_1_0_,
table1p0_.F3 as F4_1_0_,
table6x1_.F1 as F2_6_1_,
table6x1_.F2 as F3_6_1_,
table6x1_.F3 as F4_6_1_,
table6x1_.Table1_id as Table5_6_1_,
table6x1_.Table1_id as Table5_0__,
table6x1_.Id as Id0__
from Table1 table1p0_
left outer join [Table6] table6x1_
on table1p0_.Id = table6x1_.Table1_id;
//结果（4.808秒），行数6944/75/374，持续时间1ms/4022 ms
//将加载已获取Table2的实体
var allRecords=session.Query（）
.FetchMany（x=>x.Table2）
.ToFuture（）
.采取（3000）；
//将加载已获取表3的实体
session.Query（）
.FetchMany（x=>x.Table3）
.ToFuture（）；
//将加载已获取Table4的实体
session.Query（）
.FetchMany（x=>x.Table4）
.ToFuture（）；
//将加载已获取表6的实体
session.Query（）
.FetchMany（x=>x.Table6）
.ToFuture（）；
//将立即触发所有查询，会话缓存将确保，
//所有查询的结果填充相同的实体
allRecords.ToList（）；
选择table1p0\u0.Id作为Id1\u0\u0，
表2x1\u.Id为Id2\u 1\u，
表1p0.F1为F2\u 1\u 0，
表1p0.F2为F3\u 1\u 0，
表1p0.F3为F4\u 1\u 0，
表2X1.F1为F2_2_1_，
表2X1.F2为F3_2_1_，
表2x1.F3为F4\u 2\u 1，
表2x1\u。表1\u id为表5\u 2\u 1\u，
表2x1\u。表1\u id为表5\u 0\u，
表2x1_u2;Id作为Id0__
从表1到表1p0_
左外连接[表2]表2X1_
表1p0.Id=表2X1.Table1\u Id；
选择table1p0\u0.Id作为Id1\u0\u0，
表3x1\u.Id为Id3\u 1\u，
表1p0.F1为F2\u 1\u 0，
表1p0.F2为F3\u 1\u 0，
表1p0.F3为F4\u 1\u 0，
表3x1.F1为F2_3_1_，
表3X1.F2为F3\U 3\U 1，
表3x1.F3为F4\u 3\u 1，
表3X1。表1\u id为表5\u 3\u 1，
表3X1。表1\u id为表5\u 0\u，
表3x1.Id为Id0__
从表1到表1p0_
左外连接[表3]表3X1_
表1p0.Id=表3x1\u1\uID；
选择table1p0\u0.Id作为Id1\u0\u0，
表4x1\u.Id为Id4\u 1\u，
表1p0.F1为F2\u 1\u 0，
表1p0.F2为F3\u 1\u 0，
表1p0.F3为F4\u 1\u 0，
表4X1.F1为F2\U 4\U 1，
表4X1.F2为F3\U 4\U 1，
表4x1.F3为F4\u 4\u 1，
表4X1。表1\u id为表5\u 4\u 1，
表4x1\u。表1\u id a
// result (4.808 seconds), row count 6944 / 75/ 374, duration 1ms / 4022 ms
// will load the Entities with Table2 fetched
var allRecords = session.Query<Table1P>()
.FetchMany(x => x.Table2)
.ToFuture()
.Take(3000);
// will load the Entities with Table3 fetched
session.Query<Table1P>()
.FetchMany(x => x.Table3)
.ToFuture();
// will load the Entities with Table4 fetched
session.Query<Table1P>()
.FetchMany(x => x.Table4)
.ToFuture();
// will load the Entities with Table6 fetched
session.Query<Table1P>()
.FetchMany(x => x.Table6)
.ToFuture();
// will trigger all queries at once and the session cache will make sure,
// that the results of all queries fill the same Entities
allRecords.ToList();
select table1p0_.Id as Id1_0_,
table2x1_.Id as Id2_1_,
table1p0_.F1 as F2_1_0_,
table1p0_.F2 as F3_1_0_,
table1p0_.F3 as F4_1_0_,
table2x1_.F1 as F2_2_1_,
table2x1_.F2 as F3_2_1_,
table2x1_.F3 as F4_2_1_,
table2x1_.Table1_id as Table5_2_1_,
table2x1_.Table1_id as Table5_0__,
table2x1_.Id as Id0__
from Table1 table1p0_
left outer join [Table2] table2x1_
on table1p0_.Id = table2x1_.Table1_id;
select table1p0_.Id as Id1_0_,
table3x1_.Id as Id3_1_,
table1p0_.F1 as F2_1_0_,
table1p0_.F2 as F3_1_0_,
table1p0_.F3 as F4_1_0_,
table3x1_.F1 as F2_3_1_,
table3x1_.F2 as F3_3_1_,
table3x1_.F3 as F4_3_1_,
table3x1_.Table1_id as Table5_3_1_,
table3x1_.Table1_id as Table5_0__,
table3x1_.Id as Id0__
from Table1 table1p0_
left outer join [Table3] table3x1_
on table1p0_.Id = table3x1_.Table1_id;
select table1p0_.Id as Id1_0_,
table4x1_.Id as Id4_1_,
table1p0_.F1 as F2_1_0_,
table1p0_.F2 as F3_1_0_,
table1p0_.F3 as F4_1_0_,
table4x1_.F1 as F2_4_1_,
table4x1_.F2 as F3_4_1_,
table4x1_.F3 as F4_4_1_,
table4x1_.Table1_id as Table5_4_1_,
table4x1_.Table1_id as Table5_0__,
table4x1_.Id as Id0__
from Table1 table1p0_
left outer join [Table4] table4x1_
on table1p0_.Id = table4x1_.Table1_id;
select table1p0_.Id as Id1_0_,
table6x1_.Id as Id6_1_,
table1p0_.F1 as F2_1_0_,
table1p0_.F2 as F3_1_0_,
table1p0_.F3 as F4_1_0_,
table6x1_.F1 as F2_6_1_,
table6x1_.F2 as F3_6_1_,
table6x1_.F3 as F4_6_1_,
table6x1_.Table1_id as Table5_6_1_,
table6x1_.Table1_id as Table5_0__,
table6x1_.Id as Id0__
from Table1 table1p0_
left outer join [Table6] table6x1_
on table1p0_.Id = table6x1_.Table1_id;
// will load the Entities with Table2 fetched
var allRecords = session.Query<Table1P>()
.FetchMany(x => x.Table2)
.ToFuture();
// will load the Entities with Table3 fetched
session.Query<Table1P>()
.FetchMany(x => x.Table3)
.ToFuture();
// will load the Entities with Table4 fetched
session.Query<Table1P>()
.FetchMany(x => x.Table4)
.ToFuture();
// will load the Entities with Table6 fetched
session.Query<Table1P>()
.FetchMany(x => x.Table6)
.ToFuture();
// will trigger all queries at once and the session cache will make sure,
// that the results of all queries fill the same Entities
allRecords.ToList();
.ToFuture()
.Take(3000);
.Take(3000);
.ToFuture()
// Hql
var allRecords = session.CreateQuery("from Table1 left join fetch tbl1.Table2")
.ToFuture<Table1>();
...