当使用懒财产的NHibernate 3.2对象不冲水时更新 [英] NHibernate 3.2 Object isn't updated during flush when lazy property is used

问题描述

我使用lazyload财产在我的实体。它的工作原理正确的，但是当这个类的任何属性是通过方法改变NHibernate的不作更新。如果属性更改直接那么一切都OK。

I use lazyload property in my entity. It works correct, but NHibernate doesn't make update when any property in this class is changed via method. If property is changed directly then all is ok.

我想在这个问题在偷懒物业代理对象的情况下，返回这个代理不把手内的变化。

I suppose that problem in that in case of lazy property proxy object is returned and this proxy doesn't handle inner changes.

我加入测试下面的代码。它工作正常，在NHibernate的3.1，但更新不NHibernate的3.2和3.3

I have added test code below. It works fine in NHibernate 3.1 but update isn't called in NHibernate 3.2 and 3.3

也许有人知道如何解决这个问题呢？

Maybe someone know how to solve this problem?

感谢

实体：

/// <summary>
/// Class for testing lazy properties.
/// </summary>
public class TestClass
{
    public virtual int Id { get; set; }
    public virtual string LazyData { get; set; }
    public virtual string TestData { get; set; }

    public virtual void ChangeTestData(string data)
    {
        TestData = data;
    }
}

映射：

Mapping:

public class TestClassMap : ClassMap<TestClass>
{
    public TestClassMap()
    {
        Id(m => m.Id);
        Map(m => m.LazyData).LazyLoad();
        Map(m => m.TestData);
    }
}

测试代码：

Test code:

[Test]
public void LazyProperityTest1()
{
    var testObj = new TestClass();
    Session.Save(testObj);
    Session.Flush();
    Session.Clear();

    // Change property and flush session.
    var persistedObj = Session.CreateCriteria<TestClass>().List<TestClass>().First();
    persistedObj.ChangeTestData("test");

    Session.Flush();
    Session.Clear();
}

当LazyLoad设置生成的SQL请求：

Generated sql requests when LazyLoad is set:

NHibernate: INSERT INTO "TestClass" (LazyData, TestData) VALUES (@p0, @p1); select last_insert_rowid();@p0 = NULL [Type: String (0)], @p1 = NULL [Type: String (0)]
NHibernate: SELECT this_.Id as Id0_0_, this_.TestData as TestData0_0_ FROM "TestClass" this_

在未设置LazyLoad生成的SQL请求：

Generated sql requests when LazyLoad is not set:

NHibernate: INSERT INTO "TestClass" (LazyData, TestData) VALUES (@p0, @p1); select last_insert_rowid();@p0 = NULL [Type: String (0)], @p1 = NULL [Type: String (0)]
NHibernate: SELECT this_.Id as Id0_0_, this_.LazyData as LazyData0_0_, this_.TestData as TestData0_0_ FROM "TestClass" this_
NHibernate: UPDATE "TestClass" SET LazyData = @p0, TestData = @p1 WHERE Id = @p2;@p0 = NULL [Type: String (0)], @p1 = 'test' [Type: String (0)], @p2 = 1 [Type: Int32 (0)]

推荐答案

这肯定看起来像我的一个bug，和你有一个很好的测试案例来证明这一点。

This definitely looks like a bug to me, and you have a good test case to prove it.

请在 https://nhibernate.jira.com/

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