Я получаю NHibernate.DuplicateMappingException , которого я не понимаю. Приложение представляет собой простой менеджер проектов. Он содержит класс Project, который имеет свойство Notes типа ProjectNote. Вот сообщение об ошибке:
NHibernate.MappingException: Could not compile the mapping document: ProjectManager.Domain.Mapping.ProjectNote.hbm.xml ---> NHibernate.DuplicateMappingException: Duplicate class/entity mapping ProjectNote
Определения классов и файлы сопоставления воспроизводятся ниже.
Может кто-нибудь сказать мне, почему я получаю исключение дублирования карт? Спасибо.
using System.Collections.Generic;
namespace ProjectManager.Domain
{
public class Project
{
#region Constructor
public Project()
{
Initialize();
}
#endregion
#region Properties
/// <summary>
/// The ID of this project.
/// </summary>
public virtual int ID { get; set; }
/// <summary>
/// The value used to sort this item in a Projects list.
/// </summary>
public virtual int Index { get; set; }
/// <summary>
/// The name of this project.
/// </summary>
public virtual string Name { get; set; }
/// <summary>
/// Notes for this project.
/// </summary>
public virtual IList<ProjectNote> Notes { get; set; }
/// <summary>
/// The tasks in this project.
/// </summary>
public virtual IList<Task> Tasks { get; set; }
#endregion
#region Private Methods
/// <summary>
/// Initializes this class.
/// </summary>
private void Initialize()
{
Tasks = new List<Task>();
Notes = new List<ProjectNote>();
}
#endregion
}
}
namespace ProjectManager.Domain
{
public class ProjectNote
{
#region Properties
/// <summary>
///
/// </summary>
public virtual int ID { get; set; }
/// <summary>
/// The parent project of this note.
/// </summary>
public virtual Project Parent { get; set; }
/// <summary>
/// The text of the note
/// </summary>
public virtual string Text { get; set; }
#endregion
}
}
<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
auto-import="true"
assembly="ProjectManager.Domain"
namespace="ProjectManager.Domain">
<!-- Map class 'Project' -->
<class name="Project" table="Projects">
<!-- Identifier column -->
<id name="ID" column="ID" type ="Int32" unsaved-value="0">
<generator class="native" />
</id>
<!-- Simple properties -->
<property name="Name" column="Name" type="String" not-null="true" />
<!-- Collection properties: Parent-side -->
<bag name="Tasks" table="Tasks" cascade="all-delete-orphan" inverse="true">
<key column="ProjectID" />
<one-to-many class="Task" />
</bag>
<bag name="Notes" table="ProjectNotes" cascade="all-delete-orphan" inverse="true">
<key column="ProjectID" />
<one-to-many class="ProjectNote" />
</bag>
</class>
</hibernate-mapping>
<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
auto-import="true"
assembly="ProjectManager.Domain"
namespace="ProjectManager.Domain">
<!-- Map class 'ProjectNote' -->
<class name="ProjectNote" table="ProjectNotes">
<!-- Identifier column -->
<id name="ID" column="ID" type ="Int32" unsaved-value="0">
<generator class="native" />
</id>
<!-- Simple properties -->
<property name="Text" column="Text" type="String" />
<!-- Collection properties: Child-side -->
<many-to-one name="Parent" column="ProjectID" class="Project" />
</class>
</hibernate-mapping>