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src/sql/resolver/ob_column_ref.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_SQL_OB_COLUMN_REF_
+#define OCEANBASE_SQL_OB_COLUMN_REF_
+
+#include "lib/ob_name_def.h"
+#include "lib/string/ob_string.h"
+#include "lib/charset/ob_charset.h"
+
+namespace oceanbase {
+namespace sql {
+class ObColumnRef {
+  public:
+  ObColumnRef()
+      : database_name_(), table_name_(), column_name_(), is_star_(false), collation_type_(common::CS_TYPE_INVALID)
+  {}
+
+  virtual ~ObColumnRef()
+  {}
+
+  void set_database_name(common::ObString& database_name)
+  {
+    database_name_.assign_ptr(database_name.ptr(), database_name.length());
+  }
+
+  void set_table_name(common::ObString& table_name)
+  {
+    table_name_.assign_ptr(table_name.ptr(), table_name.length());
+  }
+
+  void set_column_name(common::ObString& column_name)
+  {
+    column_name_.assign_ptr(column_name.ptr(), column_name.length());
+  }
+
+  void set_star()
+  {
+    is_star_ = true;
+  }
+
+  bool is_star() const
+  {
+    return is_star_;
+  }
+
+  void get_database_name(common::ObString& database_name) const
+  {
+    database_name.assign_ptr(database_name_.ptr(), database_name_.length());
+  }
+
+  void get_table_name(common::ObString& table_name) const
+  {
+    table_name.assign_ptr(table_name_.ptr(), table_name_.length());
+  }
+
+  void get_column_name(common::ObString& column_name) const
+  {
+    column_name.assign_ptr(column_name_.ptr(), column_name_.length());
+  }
+  const common::ObString& get_database_name() const
+  {
+    return database_name_;
+  }
+  const common::ObString& get_table_name() const
+  {
+    return table_name_;
+  }
+  const common::ObString& get_column_name() const
+  {
+    return column_name_;
+  }
+
+  const common::ObCollationType& get_collation_type() const
+  {
+    return collation_type_;
+  }
+  void set_collation_type(const common::ObCollationType& collation_type)
+  {
+    collation_type_ = collation_type;
+  }
+
+  TO_STRING_KV(K(database_name_), K(table_name_), K(column_name_), K(is_star_), N_COLLATION,
+      common::ObCharset::collation_name(collation_type_));
+
+  private:
+  common::ObString database_name_;
+  common::ObString table_name_;
+  common::ObString column_name_;
+  bool is_star_;
+  common::ObCollationType collation_type_;
+};
+}  // namespace sql
+}  // namespace oceanbase
+
+#endif