如何忽视的利用代码&QUOT映射属性映射;会议及QUOT; [英] How to ignore mapping of property using mapping by code "Conventions"

查看:203
本文介绍了如何忽视的利用代码&QUOT映射属性映射;会议及QUOT;的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

有什么办法避免使用映射通过编码规范与NHibernate 3.2被映射的属性?默认情况下,所有属性都映射

Is there any way to avoid a property from being mapped with NHibernate 3.2 using mapping by code conventions? By default, all properties are mapped.

推荐答案

有两种选择,据我所知:

There are two options as far as I know:

1)扩展ConventionModelMapper和SimpleModelInspector延长IsPersistentProperty,使其满足您的需要。

1)Extend ConventionModelMapper and SimpleModelInspector to extend IsPersistentProperty such that it meets your need.

2)使用IsPersistentProperty如下:

2)Use IsPersistentProperty as follows:

...
mapper.IsPersistentProperty((memberInfo, declared) => IsPersistentProperty(mapper.ModelInspector, memberInfo, declared, "YourPropertyName"));
...


public static bool IsPersistentProperty(IModelInspector modelInspector, MemberInfo member, bool declared, string propertyName)
{
    return (declared ||(member is PropertyInfo) && !IsReadOnlyProperty(member)) && !member.Name.Equals(propertyName);
}

private static bool IsReadOnlyProperty(MemberInfo subject)
{
    const BindingFlags defaultBinding = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.DeclaredOnly;

    var property = subject as PropertyInfo;
    if (property == null)
    {
        return false;
    }
    if (CanReadCantWriteInsideType(property) || CanReadCantWriteInBaseType(property))
    {
        return !PropertyToField.DefaultStrategies.Values.Any(s => subject.DeclaringType.GetField(s.GetFieldName(property.Name), defaultBinding) != null) || IsAutoproperty(property);
    }
    return false;
}

private static bool IsAutoproperty(PropertyInfo property)
{
    return property.ReflectedType.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
                                                                             | BindingFlags.DeclaredOnly).Any(pi => pi.Name == string.Concat("<", property.Name, ">k__BackingField"));
}

private static bool CanReadCantWriteInsideType(PropertyInfo property)
{
    return !property.CanWrite && property.CanRead && property.DeclaringType == property.ReflectedType;
}

private static bool CanReadCantWriteInBaseType(PropertyInfo property)
{
    if (property.DeclaringType == property.ReflectedType)
    {
        return false;
    }
    var rfprop = property.DeclaringType.GetProperties(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
                                                                             | BindingFlags.DeclaredOnly).SingleOrDefault(pi => pi.Name == property.Name);
    return rfprop != null && !rfprop.CanWrite && rfprop.CanRead;
}

这篇关于如何忽视的利用代码&QUOT映射属性映射;会议及QUOT;的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

查看全文
相关文章
登录 关闭
扫码关注1秒登录
发送“验证码”获取 | 15天全站免登陆