94 lines
2.2 KiB
C++
94 lines
2.2 KiB
C++
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/*
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1.1 ~OperatorDDelete~
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The operator ~ddelete~ deletes all replicas of a relation that is stored in the
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~DBService~. Whether or not the corresponding local relation shall also be
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deleted can be specified using the boolean parameter.
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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 ALGEBRAS_DBSERVICE_OPERATORDDelete_HPP_
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#define ALGEBRAS_DBSERVICE_OPERATORDDelete_HPP_
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#include "Operator.h"
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namespace DBService
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{
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/*
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1.1.1 Operator Specification
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*/
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struct DDeleteInfo: OperatorInfo
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{
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DDeleteInfo()
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{
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name = "ddelete";
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signature = "string x bool -> bool";
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syntax = "ddelete(string, bool)";
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meaning = "Deletes the replicas of a relation. If the second "
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"argument is true, also the local object having this "
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"name will be deleted. ";
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example = "query ddelete('myRelation', TRUE)";
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remark = "needs a DBService system";
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usesArgsInTypeMapping = false;
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}
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};
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/*
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1.1.1 Class Definition
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*/
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class OperatorDDelete
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{
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public:
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/*
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1.1.1.1 Type Mapping Function
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*/
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static ListExpr mapType(ListExpr nestedList);
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/*
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1.1.1.1 Value Mapping Function
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*/
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static int mapValue(Word* args,
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Word& result,
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int message,
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Word& local,
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Supplier s);
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};
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} /* namespace DBService */
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#endif /* ALGEBRAS_DBSERVICE_OPERATORDDelete_HPP_ */
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