180 lines
3.5 KiB
C++
180 lines
3.5 KiB
C++
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/*
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1 Information about a derived object.
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1.1 ~DerivateInfo~
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This class stores information about a derived object.
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We store only such information that cannot be derived
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from the relation from that this objects depends on.
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For this reason, we ommit database name and original
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location.
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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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#ifndef DERIVATEINFO_HPP
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#define DERIVATEINFO_HPP
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#include "Algebras/DBService/MetadataObject.hpp"
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#include "Algebras/DBService/RelationInfo.hpp"
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#include "Algebras/DBService/ReplicaLocations.hpp"
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#include <string>
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namespace DBService
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{
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class DerivateInfo: public MetadataObject
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{
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public:
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DerivateInfo(const std::string& _objectName,
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const std::string& _dependsOn,
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const std::string& _fundef):
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objectName(_objectName), dependsOn(_dependsOn),
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fundef(_fundef) {}
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/*
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1.1.1 ~getName~
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Returns the name of the derivated object.
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*/
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const std::string& getName() const;
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/*
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1.1.2 ~getSource~
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Returns the id of the relation from that this objects
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depends on.
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*/
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const std::string& getSource() const;
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/*
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1.1.3 ~getFun~
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Returns the function that is used to create the object from
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the source relation.
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*/
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const std::string& getFun() const;
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/*
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1.1.4 ~addNode~
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*/
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void addNode(ConnectionID id);
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void addNode(ConnectionID id, bool replicated);
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/*
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1.1.5 ~addNodes~
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Adds several nodes at once.
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*/
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void addNodes(std::vector<ConnectionID>& nodesToAdd);
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/*
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1.1.6 ~nodesBegin~
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Returns an iterator to the begin of the nodes.
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*/
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const ReplicaLocations::const_iterator nodesBegin() const;
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/*
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1.1.7 ~nodesEnd~
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This function returns an iterator to the end of the nodes.
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*/
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const ReplicaLocations::const_iterator nodesEnd() const;
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/*
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1.1.8 ~toString~
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*/
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std::string toString() const;
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/*
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1.1.9 ~getNodeCount~
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Returns the number of nodes.
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*/
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size_t getNodeCount() const;
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/*
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1.1.10 ~updateReplicationStatus~
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*/
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void updateReplicationStatus(ConnectionID id, bool replicated);
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/*
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1.1.11 ~getIdentifier~
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*/
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inline static std::string getIdentifier(const std::string& relationId,
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const std::string& derivateName){
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return relationId + separator + derivateName;
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}
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inline static std::string getIdentifier(
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const std::string& database,
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const std::string& relation,
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const std::string& derivateName){
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return getIdentifier( RelationInfo::getIdentifier(database,relation),
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derivateName) ;
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}
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/*
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1.1.2 ~getAllLocations~
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*/
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void getAllLocations(std::vector<ConnectionID>& result);
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private:
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std::string objectName;
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std::string dependsOn;
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std::string fundef;
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ReplicaLocations nodes;
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};
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} // end of namespace DBService
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#endif
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