111 lines
2.9 KiB
C++
111 lines
2.9 KiB
C++
/*
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1.1.1 Class Implementation
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----
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This file is part of SECONDO.
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Copyright (C) 2017,
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Faculty of Mathematics and Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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*/
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#include "Algebras/DBService2/SecondoRecordAdapter.hpp"
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#include "Algebras/DBService2/SecondoRelationAdapter.hpp"
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#include "NestedList.h"
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using namespace std;
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extern NestedList* nl;
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// extern boost::recursive_mutex nlparsemtx;
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namespace DBService {
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shared_ptr<DBService::Relation>
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SecondoRelationAdapter::buildObjectFromNestedList(string database,
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ListExpr recordAsNestedList, int offset) {
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/*
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Name: string, Database: string, OriginalNodeId: int
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Name : relation1
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Database : dbservice_test
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OriginalNodeId : 7
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TID : 1
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*/
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string relationDatabase;
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string relationName;
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int originalNodeId;
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int id;
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/*
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TODO try to make generic.
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make_shared -> use default constructor () (without args)
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create a map:
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nestedListIndex (1, ...) ->
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{
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SecondoType function pointer (e.g. nl->StringValue),
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Record setter function pointer (e.g. record->setDatabase)
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}
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Then each Record type only has to offer the attribute mapping.
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*/
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// boost::lock_guard<boost::recursive_mutex> guard(nlparsemtx);
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relationName = nl->StringValue(
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nl->Nth(++offset, recordAsNestedList));
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relationDatabase = nl->StringValue(
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nl->Nth(++offset, recordAsNestedList));
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originalNodeId = nl->IntValue(nl->Nth(
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++offset, recordAsNestedList));
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id = nl->IntValue(nl->Nth(
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++offset, recordAsNestedList));
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shared_ptr<DBService::Relation> relation = DBService::Relation::build(
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relationDatabase, relationName);
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// Record
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relation->setDatabase(database);
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relation->setId(id);
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// Eager load original node.
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/* TODO Does it make more sense to trigger this is an afterLoad callback?
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For this to happen, the originalNodeId needed to be an attribute of
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the relation object.
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*/
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relation->loadOriginalNode(originalNodeId);
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// 1+N issue when eager loading replicas
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relation->loadReplicas();
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relation->loadDerivatives();
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relation->setClean();
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relation->setNotNew();
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return relation;
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}
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} |