The goal with this is to intercept when all auto properties is access
on any class that is a subclass of ContentItem.
My classes looks like this:
public abstract class ContentItem : IContentItem {
public virtual int? Id { get; set; }
[ContentDetail]
public virtual string Name { get; set; }
[ContentDetail]
public virtual IDictionary<string, ContentDetail> Details
{ get; private set; }
protected ContentItem() {
Details = new Dictionary<string, ContentDetail>();
}
}
and the the subclass
public class Home : ContentItem {
[SomeAttribute]
public virtual string Heading { get; set; }
}
So when Heading property is access I want to intercept and return the
value of Details["Heading"] from the base class.
I have found some examples how to create an interceptor, for instance
this http://robtennyson.us/post/2009/08/23/NHibernate-Interceptors.aspx
but what I really want to do is to setup when the interception should
happen kinda like this
public bool ShouldInterceptMethod(Type type, MethodInfo memberInfo)
{ return
(memberInfo.IsGetterOrSetterForPropertyWithAttribute(typeof(SomeAttribute))); }
and then in the interception method i would return the value from the
detailscollection kinda like this
public void Intercept(IInvocation invocation)
2: {
3: TypedPageData invocationTarget = (TypedPageData)
invocation.InvocationTarget;
4: string propertyName = invocation.Method.GetPropertyName();
5: if (invocation.Method.IsGetter())
6: {
7: invocation.ReturnValue =
invocationTarget.Details[propertyName];
8: if ((invocation.ReturnValue == null) &&
(invocation.Method.ReturnType == typeof(bool)))
9: {
10: invocation.ReturnValue = false;
11: }
12: }
13: else
14: {
15: invocationTarget.SetValue(propertyName,
invocation.Arguments[0]);
16: }
17: }
How can I achive this with nhibernate?
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