private ILoader GetLoader(ISession session)
{
using (new SessionIdLoggingContext(Session.SessionId))
{
if (indexProjection != null)
{
ProjectionLoader loader = new ProjectionLoader();
loader.Init(session, SearchFactory, resultTransformer, indexProjection);
return(loader);
}
if (criteria != null)
{
if (classes.GetLength(0) > 1)
{
throw new SearchException("Cannot mix criteria and multiple entity types");
}
if (criteria is CriteriaImpl)
{
string targetEntity = ((CriteriaImpl)criteria).EntityOrClassName;
if (classes.GetLength(0) == 1 && classes[0].FullName != targetEntity)
{
throw new SearchException("Criteria query entity should match query entity");
}
try
{
System.Type entityType = ((CriteriaImpl)criteria).GetRootEntityTypeIfAvailable();
classes = new System.Type[] { entityType };
}
catch (Exception e)
{
throw new SearchException("Unable to load entity class from criteria: " + targetEntity, e);
}
}
QueryLoader loader = new QueryLoader();
loader.Init(session, searchFactoryImplementor);
loader.EntityType = classes[0];
loader.Criteria = criteria;
return(loader);
}
if (classes.GetLength(0) == 1)
{
QueryLoader loader = new QueryLoader();
loader.Init(session, searchFactoryImplementor);
loader.EntityType = classes[0];
return(loader);
}
else
{
ObjectLoader loader = new ObjectLoader();
loader.Init(session, searchFactoryImplementor);
return(loader);
}
}
}