/// <summary>Loads a node from its id.</summary>
/// <remarks>
/// Loads a node from its id. Tries to get if from memory, if not present
/// then loads it from odb storage
/// </remarks>
/// <param name="id">The id of the nod</param>
/// <returns>The node with the specific id</returns>
public virtual NeoDatis.Btree.IBTreeNode LoadNodeById(object id)
{
NeoDatis.Odb.OID oid = (NeoDatis.Odb.OID)id;
// Check if node is in memory
NeoDatis.Btree.IBTreeNode node = (NeoDatis.Btree.IBTreeNode)oids[oid];
if (node != null)
{
nbLoadNodesFromCache++;
return(node);
}
nbLoadNodes++;
// else load from odb
try
{
if (NeoDatis.Odb.OdbConfiguration.IsDebugEnabled(LogId))
{
NeoDatis.Tool.DLogger.Debug("Loading node with id " + oid);
}
if (oid == null)
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Btree.BTreeError.InvalidIdForBtree
.AddParameter(oid));
}
NeoDatis.Btree.IBTreeNode pn = (NeoDatis.Btree.IBTreeNode)engine.GetObjectFromOid
(oid);
pn.SetId(oid);
if (tree != null)
{
pn.SetBTree(tree);
}
// Keep the node in memory
oids.Add(oid, pn);
return(pn);
}
catch (System.Exception e)
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Btree.BTreeError.InternalError
, e);
}
}
private NeoDatis.Odb.ObjectValues ConvertObject(NeoDatis.Odb.Core.Layers.Layer2.Meta.AttributeValuesMap
values)
{
NeoDatis.Odb.Impl.Core.Query.List.Values.DefaultObjectValues dov = new NeoDatis.Odb.Impl.Core.Query.List.Values.DefaultObjectValues
(returnArraySize);
NeoDatis.Odb.Core.Query.Execution.IQueryFieldAction qfa = null;
for (int i = 0; i < returnArraySize; i++)
{
qfa = queryFieldActions[i];
qfa.Execute(values.GetObjectInfoHeader().GetOid(), values);
object o = qfa.GetValue();
// When Values queries return objects, they actually return the oid of the object
// So we must load it here
if (o != null && o is NeoDatis.Odb.OID)
{
NeoDatis.Odb.Impl.Core.Oid.OdbObjectOID oid = (NeoDatis.Odb.Impl.Core.Oid.OdbObjectOID
)o;
o = engine.GetObjectFromOid(oid);
}
dov.Set(i, qfa.GetAlias(), o);
}
return(dov);
}
public virtual object GetObjectFromId(NeoDatis.Odb.OID id)
{
return(storageEngine.GetObjectFromOid(id));
}
