Initial revision of NDB Cluster files

1 files changed, 141 insertions, 0 deletions

diff --git a/ndb/src/client/odbc/codegen/Code_expr_conv.hpp b/ndb/src/client/odbc/codegen/Code_expr_conv.hpp
new file mode 100644
index 00000000000..3294960c7b3
--- /dev/null
+++ b/ndb/src/client/odbc/codegen/Code_expr_conv.hpp
@@ -0,0 +1,141 @@
+/* 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_expr_conv_hpp
+#define ODBC_CODEGEN_Code_expr_conv_hpp
+
+#include <common/common.hpp>
+#include <common/DataField.hpp>
+#include "Code_expr.hpp"
+
+/**
+ * @class Plan_expr_conv
+ * @brief Data type conversion in PlanTree
+ *
+ * Inserted to convert value to another compatible type.
+ */
+class Plan_expr_conv : public Plan_expr {
+public:
+    Plan_expr_conv(Plan_root* root, const SqlType& sqlType);
+    virtual ~Plan_expr_conv();
+    Plan_base* analyze(Ctx& ctx, Ctl& ctl);
+    Exec_base* codegen(Ctx& ctx, Ctl& ctl);
+    void print(Ctx& ctx);
+    bool isEqual(const Plan_expr* expr) const;
+    bool isGroupBy(const Plan_expr_row* row) const;
+    // children
+    void setExpr(Plan_expr* expr);
+protected:
+    Plan_expr* m_expr;
+};
+
+inline
+Plan_expr_conv::Plan_expr_conv(Plan_root* root, const SqlType& sqlType) :
+    Plan_expr(root, TypeConv),
+    m_expr(0)
+{
+    ctx_assert(sqlType.type() != SqlType::Undef);
+    m_sqlType = sqlType;
+}
+
+inline void
+Plan_expr_conv::setExpr(Plan_expr* expr)
+{
+    ctx_assert(expr != 0);
+    m_expr = expr;
+}
+
+/**
+ * @class Exec_expr_conv
+ * @brief Data type conversion in ExecTree
+ */
+class Exec_expr_conv : public Exec_expr {
+public:
+    class Code : public Exec_expr::Code {
+    public:
+	Code(const SqlSpec& spec);
+	virtual ~Code();
+    protected:
+	friend class Exec_expr_conv;
+	const SqlSpec m_sqlSpec;
+    };
+    class Data : public Exec_expr::Data {
+    public:
+	Data(const SqlField& sqlField);
+	virtual ~Data();
+    protected:
+	friend class Exec_expr_conv;
+	SqlField m_sqlField;
+    };
+    Exec_expr_conv(Exec_root* root);
+    virtual ~Exec_expr_conv();
+    void alloc(Ctx& ctx, Ctl& ctl);
+    void evaluate(Ctx& ctx, Ctl& ctl);
+    void close(Ctx& ctx);
+    void print(Ctx& ctx);
+    // children
+    const Code& getCode() const;
+    Data& getData() const;
+    void setExpr(Exec_expr* expr);
+protected:
+    Exec_expr* m_expr;
+};
+
+inline
+Exec_expr_conv::Code::Code(const SqlSpec& sqlSpec) :
+    Exec_expr::Code(m_sqlSpec),
+    m_sqlSpec(sqlSpec)
+{
+}
+
+inline
+Exec_expr_conv::Data::Data(const SqlField& sqlField) :
+    Exec_expr::Data(m_sqlField),
+    m_sqlField(sqlField)
+{
+}
+
+inline
+Exec_expr_conv::Exec_expr_conv(Exec_root* root) :
+    Exec_expr(root),
+    m_expr(0)
+{
+}
+
+// children
+
+inline const Exec_expr_conv::Code&
+Exec_expr_conv::getCode() const
+{
+    const Code* code = static_cast<const Code*>(m_code);
+    return *code;
+}
+
+inline Exec_expr_conv::Data&
+Exec_expr_conv::getData() const
+{
+    Data* data = static_cast<Data*>(m_data);
+    return *data;
+}
+
+inline void
+Exec_expr_conv::setExpr(Exec_expr* expr)
+{
+    ctx_assert(m_expr == 0 && expr != 0);
+    m_expr = expr;
+}
+
+#endif