Store Hbm.xml in folder, Load them on demand

Question

What is the best way to store hbm files separately from entity assembly, and load them on demand? I assume I need to load xml file into HbmMapping instance and serialize it into Hibernate.Cfg.Configuration instance?

Answer 1

Configuration.AddAssembly(Assembly) is one of the more commonly used methods for loading *.hbm.xml mappings, but it's not the only one. These are all of the "add mappings" methods:

• AddAssembly
• AddClass
• AddDeserializedMapping
• AddDirectory
• AddDocument
• AddFile
• AddInputStream
• AddMapping
• AddResource
• AddUrl
• AddXml
• AddXmlFile
• AddXmlReader
• AddXmlString

Assuming you have a method named Stream OpenHbm(String), I believe something like this should work:

foreach (var hbmName in hbmNames)
    using (var stream = OpenHbm(hbmName))
        config.AddInputStream(stream, hbmName);