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+/* Copyright (C) 2003 MySQL AB
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
+
+#ifndef ODBC_CODEGEN_Code_query_repeat_hpp
+#define ODBC_CODEGEN_Code_query_repeat_hpp
+
+#include <common/common.hpp>
+#include "Code_query.hpp"
+#include "Code_expr_row.hpp"
+
+/**
+ * @class Plan_query_repeat
+ * @brief Constant query node in PlanTree
+ */
+class Plan_query_repeat : public Plan_query {
+public:
+ Plan_query_repeat(Plan_root* root);
+ Plan_query_repeat(Plan_root* root, CountType maxcount);
+ virtual ~Plan_query_repeat();
+ Plan_base* analyze(Ctx& ctx, Ctl& ctl);
+ Exec_base* codegen(Ctx& ctx, Ctl& ctl);
+ void print(Ctx& ctx);
+private:
+ bool m_forever;
+ CountType m_maxcount;
+};
+
+inline
+Plan_query_repeat::Plan_query_repeat(Plan_root* root) :
+ Plan_query(root),
+ m_forever(true),
+ m_maxcount(0)
+{
+}
+
+inline
+Plan_query_repeat::Plan_query_repeat(Plan_root* root, CountType maxcount) :
+ Plan_query(root),
+ m_forever(false),
+ m_maxcount(maxcount)
+{
+}
+
+/**
+ * @class Exec_query_repeat
+ * @brief Constant query node in ExecTree
+ */
+class Exec_query_repeat : public Exec_query {
+public:
+ class Code : public Exec_query::Code {
+ public:
+ Code(const SqlSpecs& sqlSpecs, bool forever, CountType maxcount);
+ virtual ~Code();
+ protected:
+ friend class Exec_query_repeat;
+ SqlSpecs m_sqlSpecs;
+ bool m_forever;
+ CountType m_maxcount;
+ };
+ class Data : public Exec_query::Data {
+ public:
+ Data(Exec_query_repeat* node, const SqlSpecs& sqlSpecs);
+ virtual ~Data();
+ protected:
+ friend class Exec_query_repeat;
+ SqlRow m_sqlRow;
+ CountType m_count;
+ };
+ Exec_query_repeat(Exec_root* root);
+ virtual ~Exec_query_repeat();
+ void alloc(Ctx& ctx, Ctl& ctl);
+ void execImpl(Ctx& ctx, Ctl& ctl);
+ bool fetchImpl(Ctx& ctx, Ctl& ctl);
+ void close(Ctx& ctx);
+ void print(Ctx& ctx);
+ // children
+ const Code& getCode() const;
+ Data& getData() const;
+};
+
+inline
+Exec_query_repeat::Code::Code(const SqlSpecs& sqlSpecs, bool forever, CountType maxcount) :
+ Exec_query::Code(m_sqlSpecs),
+ m_sqlSpecs(sqlSpecs),
+ m_forever(forever),
+ m_maxcount(maxcount)
+{
+}
+
+inline
+Exec_query_repeat::Data::Data(Exec_query_repeat* node, const SqlSpecs& sqlSpecs) :
+ Exec_query::Data(node, m_sqlRow),
+ m_sqlRow(sqlSpecs),
+ m_count(0)
+{
+}
+
+inline
+Exec_query_repeat::Exec_query_repeat(Exec_root* root) :
+ Exec_query(root)
+{
+}
+
+// children
+
+inline const Exec_query_repeat::Code&
+Exec_query_repeat::getCode() const
+{
+ const Code* code = static_cast<const Code*>(m_code);
+ return *code;
+}
+
+inline Exec_query_repeat::Data&
+Exec_query_repeat::getData() const
+{
+ Data* data = static_cast<Data*>(m_data);
+ return *data;
+}
+
+#endif