mirror of
https://github.com/FirebirdSQL/firebird.git
synced 2025-01-23 22:03:03 +01:00
488eb40fe0
- Renamed CompiledStatement to DsqlCompilerScratch and removed inheritance to dsql_req. - Introduced DsqlCompilerStatement, moving things from dsql_req - not completelly shareable yet. - Make dsql_req reference a DsqlCompilerStatement. DsqlCompilerScratch may be discarded in the future. - Replaced AlterCharSetNode usage by PreparedStatement for the default collation in database creation. - Changed METD API.
97 lines
2.3 KiB
C++
97 lines
2.3 KiB
C++
/*
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* The contents of this file are subject to the Initial
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* Developer's Public License Version 1.0 (the "License");
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* you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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* http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
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*
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* Software distributed under the License is distributed AS IS,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied.
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* See the License for the specific language governing rights
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* and limitations under the License.
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*
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* The Original Code was created by Adriano dos Santos Fernandes
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* for the Firebird Open Source RDBMS project.
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*
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* Copyright (c) 2008 Adriano dos Santos Fernandes <adrianosf@uol.com.br>
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* and all contributors signed below.
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*
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* All Rights Reserved.
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* Contributor(s): ______________________________________.
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*/
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#include "../jrd/ResultSet.h"
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#include "../jrd/PreparedStatement.h"
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#include "../jrd/align.h"
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#include "../jrd/jrd.h"
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#include "../jrd/dsc.h"
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#include "../dsql/dsql.h"
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#include "../dsql/sqlda_pub.h"
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#include "../dsql/dsql_proto.h"
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namespace Jrd {
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ResultSet::ResultSet(thread_db* tdbb, PreparedStatement* aStmt, jrd_tra* aTransaction)
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: stmt(aStmt),
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transaction(aTransaction),
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firstFetchDone(false)
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{
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stmt->execute(tdbb, transaction);
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stmt->resultSet = this;
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}
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ResultSet::~ResultSet()
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{
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if (!stmt)
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return;
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thread_db* tdbb = JRD_get_thread_data();
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stmt->resultSet = NULL;
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if (stmt->request->getStatement()->type != REQ_EXEC_PROCEDURE)
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DSQL_free_statement(tdbb, stmt->request, DSQL_close);
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}
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bool ResultSet::fetch(thread_db* tdbb)
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{
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if (stmt->request->getStatement()->type == REQ_EXEC_PROCEDURE && firstFetchDone)
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return false;
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memset(stmt->outMessage.begin(), 0, stmt->outMessage.getCount());
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ISC_STATUS status = DSQL_fetch(tdbb, stmt->request, stmt->outBlr.getCount(), stmt->outBlr.begin(),
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/*0,*/ stmt->outMessage.getCount(), stmt->outMessage.begin());
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if (status == 100)
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return false;
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firstFetchDone = true;
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return true;
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}
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bool ResultSet::isNull(unsigned param) const
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{
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fb_assert(param > 0);
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const dsc* desc = &stmt->outValues[(param - 1) * 2 + 1];
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fb_assert(desc->dsc_dtype == dtype_short);
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return *reinterpret_cast<SSHORT*>(desc->dsc_address) != 0;
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}
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dsc& ResultSet::getDesc(unsigned param)
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{
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fb_assert(param > 0);
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return stmt->outValues[(param - 1) * 2];
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}
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} // namespace
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