summaryrefslogtreecommitdiffstats
path: root/reader/src/database/sqldb/DBDataReader.h
diff options
context:
space:
mode:
authorMichele Calgaro <[email protected]>2024-06-07 23:30:05 +0900
committerMichele Calgaro <[email protected]>2024-06-07 23:30:05 +0900
commit17b259df9cb6b28779d4881b2b6c805ee2e48eea (patch)
tree5ed61937459cb7081089111b0242c01ec178f1f3 /reader/src/database/sqldb/DBDataReader.h
parent1cba8bce178eb2d6719c6f7f21e2c9352c5513a6 (diff)
downloadtde-ebook-reader-17b259df9cb6b28779d4881b2b6c805ee2e48eea.tar.gz
tde-ebook-reader-17b259df9cb6b28779d4881b2b6c805ee2e48eea.zip
Rename to tde-ebook-reader
Signed-off-by: Michele Calgaro <[email protected]>
Diffstat (limited to 'reader/src/database/sqldb/DBDataReader.h')
-rw-r--r--reader/src/database/sqldb/DBDataReader.h58
1 files changed, 58 insertions, 0 deletions
diff --git a/reader/src/database/sqldb/DBDataReader.h b/reader/src/database/sqldb/DBDataReader.h
new file mode 100644
index 0000000..f07b323
--- /dev/null
+++ b/reader/src/database/sqldb/DBDataReader.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2009-2012 Geometer Plus <[email protected]>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#ifndef __DBDATAREADER_H__
+#define __DBDATAREADER_H__
+
+#include "DBValues.h"
+
+class DBDataReader {
+
+public:
+ DBDataReader();
+ virtual ~DBDataReader();
+
+public: // to implement:
+ virtual bool next() = 0;
+ virtual bool reset() = 0;
+ virtual void close() = 0;
+
+ virtual std::size_t columnsNumber() const = 0;
+
+ virtual DBValue::ValueType type(std::size_t column) const = 0;
+ virtual shared_ptr<DBValue> value(std::size_t column) const = 0;
+
+ virtual int intValue(std::size_t column) const = 0;
+ virtual double realValue(std::size_t column) const = 0;
+ virtual std::string textValue(std::size_t column, const std::string &defaultValue) const = 0;
+
+public:
+ bool isDBNull(std::size_t column) const;
+ bool isInt(std::size_t column) const;
+ bool isReal(std::size_t column) const;
+ bool isText(std::size_t column) const;
+};
+
+inline bool DBDataReader::isDBNull(std::size_t column) const { return type(column) == DBValue::DBNULL; }
+inline bool DBDataReader::isInt(std::size_t column) const { return type(column) == DBValue::DBINT; }
+inline bool DBDataReader::isReal(std::size_t column) const { return type(column) == DBValue::DBREAL; }
+inline bool DBDataReader::isText(std::size_t column) const { return type(column) == DBValue::DBTEXT; }
+
+#endif /* __DBDATAREADER_H__ */
+