the begginning

dbcon/ddlpackageproc/altertableprocessor.h

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+/* Copyright (C) 2014 InfiniDB, Inc.
+
+   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; version 2 of
+   the License.
+
+   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., 51 Franklin Street, Fifth Floor, Boston,
+   MA 02110-1301, USA. */
+
+/***********************************************************************
+ *   $Id: altertableprocessor.h 9303 2013-03-07 16:07:12Z chao $
+ *
+ *
+ ***********************************************************************/
+/** @file */
+#ifndef ALTERTABLEPROCESSOR_H
+#define ALTERTABLEPROCESSOR_H
+
+#include "ddlpackageprocessor.h"
+
+#if defined(_MSC_VER) && defined(DDLPKGPROC_DLLEXPORT)
+#define EXPORT __declspec(dllexport)
+#else
+#define EXPORT
+#endif
+
+namespace ddlpackageprocessor
+{
+    /** @brief specialization of a DDLPackageProcessor
+     * for interacting with the Write Engine
+     * to process alter table ddl statements.
+     */
+    class AlterTableProcessor : public DDLPackageProcessor
+    {
+        public:
+			AlterTableProcessor(BRM::DBRM* aDbrm) : DDLPackageProcessor(aDbrm){}
+            /** @brief process an alter table statement
+             *
+             * @param alterTableStmt the AlterTableStatement
+             */
+            EXPORT DDLResult processPackage(ddlpackage::AlterTableStatement& alterTableStmt);
+            /** @brief add a physical column file
+             *
+             * @param result the result of the operation
+             * @param addColumn the AtaAddColumn object
+             * @param fTableName the QualifiedName of the table
+             */
+            EXPORT void addColumn(uint32_t sessionID, execplan::CalpontSystemCatalog::SCN txnID, DDLResult& result,
+                ddlpackage::ColumnDef* columnDefPtr,
+                ddlpackage::QualifiedName& fTableName, const uint64_t uniqueId);
+
+            /** @brief drop a column
+             *
+             * @param result the result of the operation
+             * @param ataDropColumn the AtaDropColumn object
+             * @param fTableName the QualifiedName for the table
+             */
+            EXPORT void dropColumn(uint32_t sessionID, execplan::CalpontSystemCatalog::SCN txnID, DDLResult& result,
+                ddlpackage::AtaDropColumn& ataDropColumn,
+                ddlpackage::QualifiedName& fTableName, const uint64_t uniqueId);
+
+            /** @brief drop columns
+             *
+             * @param result the result of the operation
+             * @param ataDropColumns the AtaDropColumn object
+             * @param fTableName the QualifiedName for the table
+             */
+            EXPORT void dropColumns(uint32_t sessionID, execplan::CalpontSystemCatalog::SCN txnID, DDLResult& result,
+                ddlpackage::AtaDropColumns& ataDropColumns,
+                ddlpackage::QualifiedName& fTableName, const uint64_t uniqueId );
+
+            /** @brief add table constraint
+             *
+             * @param result the result of the operation
+             * @param ataAddTableConstraint the AtaDropColumn object
+             * @param fTableName the QualifiedName for the table
+             */
+            EXPORT void addTableConstraint(uint32_t sessionID, execplan::CalpontSystemCatalog::SCN txnID, DDLResult& result,
+                ddlpackage::AtaAddTableConstraint& ataAddTableConstraint,
+                ddlpackage::QualifiedName& fTableName );
+
+            /** @brief set column default
+             *
+             * @param result the result of the operation
+             * @param ataSetColumnDefault the AtaSetColumnDefault object
+             * @param fTableName the QualifiedName for the table
+             */
+            EXPORT void setColumnDefault(uint32_t sessionID, execplan::CalpontSystemCatalog::SCN txnID, DDLResult& result,
+                ddlpackage::AtaSetColumnDefault& ataSetColumnDefault,
+                ddlpackage::QualifiedName& fTableName, const uint64_t uniqueId );
+
+            /** @brief drop column default
+             *
+             * @param result the result of the operation
+             * @param ataDropColumnDefault the AtaDropColumnDefault object
+             * @param fTableName the QualifiedName for the table
+             */
+            EXPORT void dropColumnDefault(uint32_t sessionID, execplan::CalpontSystemCatalog::SCN txnID, DDLResult& result,
+                ddlpackage::AtaDropColumnDefault& ataDropColumnDefault,
+                ddlpackage::QualifiedName& fTableName, const uint64_t uniqueId );
+
+            /** @brief drop table constraint
+             *
+             * @param result the result of the operation
+             * @param ataDropTableConstraint the AtaDropTableConstraint object
+             * @param fTableName the QualifiedName for the table
+             */
+            EXPORT void dropTableConstraint(uint32_t sessionID, execplan::CalpontSystemCatalog::SCN txnID, DDLResult& result,
+                ddlpackage::AtaDropTableConstraint& ataDropTableConstraint,
+                ddlpackage::QualifiedName& fTableName );
+            /** @brief rename a table
+             *
+             * @param result the result of the operation
+             * @param ataRenameTable the AtaRenameTable object
+             * @param fTableName the QualifiedName for the table
+             */
+            EXPORT void renameTable(uint32_t sessionID, execplan::CalpontSystemCatalog::SCN txnID,
+                DDLResult& result, ddlpackage::AtaRenameTable& ataRenameTable,
+                ddlpackage::QualifiedName& fTableName, const uint64_t uniqueId);
+
+            /** @brief rename a column
+             *
+             * @param result the result of the operation
+             * @param ataRenameColumn the AtaRenameColumn object
+             * @param fTableName the QualifiedName for the table
+             */
+            EXPORT void renameColumn(uint32_t sessionID, execplan::CalpontSystemCatalog::SCN txnID, DDLResult& result,
+                ddlpackage::AtaRenameColumn& ataRenameColumn,
+                ddlpackage::QualifiedName& fTableName, const uint64_t uniqueId);
+
+        protected:
+	    void rollBackAlter(const std::string& error, BRM::TxnID txnID, int sessionId, DDLResult& result, uint64_t uniqueId);
+
+        private:
+
+    };
+
+}                                                 //namespace ddlpackageprocessor
+
+#undef EXPORT
+
+#endif                                            //ALTERTABLEPROCESSOR_H