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PONHibernate can not retrieve typeof a derived class correctly
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copied!<p>Hello<br> Short and to the point, I have 3-level inheritance :</p> <pre><code>public class JobBase { virtual public Guid Id { get; set; } // Some properties here } public class Job:JobBase { // Some properties here } public class JobTypeX : Job { // Some properties here } public class JobTypeY : Job { // Some properties here } </code></pre> <p>Mappings :</p> <pre><code>public class JobBaseMap : ClassMap<JobBase> { public JobBaseMap() { Id(p => p.Id); //other mappings } } public class JobMap : SubclassMap<Job> { public JobMap() { KeyColumn("JobBaseId"); //other mappings } } public class JobTypeXMap : SubclassMap<JobTypeX> { public JobTypeXMap() { KeyColumn("JobBaseId"); //other mappings } } public class JobTypeYMap : SubclassMap<JobTypeY> { public JobTypeYMap() { KeyColumn("JobBaseId"); //other mappings } } </code></pre> <p>Another class which uses Job </p> <pre><code>public class Person { virtual public Guid Id { get; set; } virtual public Job MyJob { get; set; } } </code></pre> <p>well, when I want to add a new Person I write somthing like :</p> <pre><code> Person person = new Person(); //set other properties //jobId can be either JobTypeX's id or JobTypeY's id person.MyJob = Repository<Job>.Get(jobId); //surely, one of conditions is true if (person.MyJob is JobTypeX) { //do something } else if (person.MyJob is JobTypeY) { //do sth else here } Repository<Person>.Save(person); </code></pre> <p>So far so good. It loads the same data by the code below :</p> <pre><code> Person person = Repository<Person>.Get(personId); </code></pre> <p>Although all the values of <strong>person.MyJob</strong> is correct when person is loaded, it cannot recognize the Job type anymore :</p> <pre><code> if (person.MyJob is JobTypeX) // false { //do something } else if (person.MyJob is JobTypeY) // false { //do sth else here } </code></pre> <p>There are a few ways to get rid of this problem. For example, I can check whether JobBaseId is available in table JobTypeX or JobTypeY. but I guess something should be wrong somewhere!</p> <p>do I miss something? any idea?</p>

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