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src/sql/engine/cmd/ob_database_executor.h

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+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#ifndef OCEANBASE_SRC_SQL_ENGINE_CMD_OB_DATABASE_EXECUTOR_H_
+#define OCEANBASE_SRC_SQL_ENGINE_CMD_OB_DATABASE_EXECUTOR_H_
+#include "share/ob_define.h"
+#include "share/schema/ob_schema_getter_guard.h"
+
+namespace oceanbase {
+namespace sql {
+class ObExecContext;
+class ObCreateDatabaseStmt;
+class ObDropDatabaseStmt;
+class ObUseDatabaseStmt;
+class ObAlterDatabaseStmt;
+class ObFlashBackDatabaseStmt;
+class ObPurgeDatabaseStmt;
+class ObCreateDatabaseExecutor {
+  public:
+  ObCreateDatabaseExecutor();
+  virtual ~ObCreateDatabaseExecutor();
+  int execute(ObExecContext& ctx, ObCreateDatabaseStmt& stmt);
+
+  private:
+  DISALLOW_COPY_AND_ASSIGN(ObCreateDatabaseExecutor);
+};
+
+///////////////////////
+class ObUseDatabaseExecutor {
+  public:
+  ObUseDatabaseExecutor();
+  virtual ~ObUseDatabaseExecutor();
+  int execute(ObExecContext& ctx, ObUseDatabaseStmt& stmt);
+
+  private:
+  DISALLOW_COPY_AND_ASSIGN(ObUseDatabaseExecutor);
+};
+
+///////////////////////
+class ObAlterDatabaseExecutor {
+  public:
+  ObAlterDatabaseExecutor();
+  virtual ~ObAlterDatabaseExecutor();
+  int execute(ObExecContext& ctx, ObAlterDatabaseStmt& stmt);
+
+  private:
+  DISALLOW_COPY_AND_ASSIGN(ObAlterDatabaseExecutor);
+};
+
+/////////////////////
+class ObDropDatabaseExecutor {
+  public:
+  ObDropDatabaseExecutor();
+  virtual ~ObDropDatabaseExecutor();
+  int execute(ObExecContext& ctx, ObDropDatabaseStmt& stmt);
+
+  private:
+  DISALLOW_COPY_AND_ASSIGN(ObDropDatabaseExecutor);
+};
+
+/* *
+ *
+ * */
+class ObFlashBackDatabaseExecutor {
+  public:
+  ObFlashBackDatabaseExecutor()
+  {}
+  virtual ~ObFlashBackDatabaseExecutor()
+  {}
+  int execute(ObExecContext& ctx, ObFlashBackDatabaseStmt& stmt);
+
+  private:
+  DISALLOW_COPY_AND_ASSIGN(ObFlashBackDatabaseExecutor);
+};
+
+class ObPurgeDatabaseExecutor {
+  public:
+  ObPurgeDatabaseExecutor()
+  {}
+  virtual ~ObPurgeDatabaseExecutor()
+  {}
+  int execute(ObExecContext& ctx, ObPurgeDatabaseStmt& stmt);
+
+  private:
+  DISALLOW_COPY_AND_ASSIGN(ObPurgeDatabaseExecutor);
+};
+
+}  // namespace sql
+}  // namespace oceanbase
+#endif /* OCEANBASE_SRC_SQL_ENGINE_CMD_OB_DATABASE_EXECUTOR_H_ */