/// <exception cref="Db4objects.Db4o.Ext.Db4oIOException"></exception>
 private void CollectIDsByInstantiatingCollection(QueryingReadContext context)
 {
     var id = context.CollectionID();
     if (id == 0)
     {
         return;
     }
     var transaction = context.Transaction();
     var container = context.Container();
     var obj = container.GetByID(transaction, id);
     if (obj == null)
     {
         return;
     }
     // FIXME: [TA] review activation depth
     var depth = DepthUtil.AdjustDepthToBorders(2);
     container.Activate(transaction, obj, container.ActivationDepthProvider().ActivationDepth
         (depth, ActivationMode.Activate));
     Platform4.ForEachCollectionElement(obj, new _IVisitor4_390(context));
 }
 /// <exception cref="Db4objects.Db4o.Ext.Db4oIOException"></exception>
 private bool CollectIDsByTypehandlerAspect(QueryingReadContext context)
 {
     var aspectFound = new BooleanByRef(false);
     var subContext = CollectIdContext.ForID(context.Transaction(), context
         .Collector(), context.CollectionID());
     ITraverseAspectCommand command = new _MarshallingInfoTraverseAspectCommand_349(this
         , aspectFound, subContext, EnsureFieldList(subContext));
     TraverseAllAspects(subContext, command);
     return aspectFound.value;
 }