Initial release of the Database Abstraction Layer

1 files changed, 198 insertions, 0 deletions

diff --git a/src/dal/recordset.cpp b/src/dal/recordset.cpp
new file mode 100644
index 00000000..fdaf6614
--- /dev/null
+++ b/src/dal/recordset.cpp
@@ -0,0 +1,198 @@
+/*
+ *  The Mana World Server
+ *  Copyright 2004 The Mana World Development Team
+ *
+ *  This file is part of The Mana World.
+ *
+ *  The Mana World  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 any later version.
+ *
+ *  The Mana  World 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 The Mana  World; if not, write to the  Free Software Foundation, Inc.,
+ *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ *  $Id$
+ */
+
+
+#include <sstream>
+
+#include "recordset.h"
+
+
+namespace tmw
+{
+namespace dal
+{
+
+
+/**
+ * Default constructor.
+ */
+Record::Record(void)
+    throw()
+{
+    // NOOP
+}
+
+
+/**
+ * Destructor.
+ */
+Record::~Record(void)
+    throw()
+{
+    // NOOP
+}
+
+
+/**
+ * Add a new field.
+ */
+void
+Record::addField(const std::string& name,
+                 const std::string& value)
+    throw()
+{
+    mFields.insert(Fields::value_type(name, value));
+}
+
+
+/**
+ * Add a new field.
+ */
+void
+Record::addField(const std::string& name,
+                 const double value)
+    throw()
+{
+    // convert the number into a string.
+    std::ostringstream os;
+    os << value << std::ends;
+
+    mFields.insert(Fields::value_type(name, os.str()));
+}
+
+
+/**
+ * Get the field value.
+ */
+const std::string&
+Record::get(const std::string& name) const
+    throw(std::invalid_argument)
+{
+    return getAsString(name);
+}
+
+
+/**
+ * Get the field value as string.
+ */
+const std::string&
+Record::getAsString(const std::string& name) const
+    throw(std::invalid_argument)
+{
+    Fields::const_iterator it = mFields.find(name);
+
+    if (it == mFields.end()) {
+        std::ostringstream msg;
+        msg << "unknown field name: " << name << std::ends;
+
+        throw std::invalid_argument(msg.str());
+    }
+
+    return it->second;
+}
+
+
+/**
+ * Get the field value as a number.
+ */
+const double
+Record::getAsNumber(const std::string& name) const
+    throw(std::invalid_argument)
+{
+    std::istringstream is(getAsString(name));
+    double doubleValue;
+
+    // convert the string to a number.
+    is >> doubleValue;
+
+    return doubleValue;
+}
+
+
+/**
+ * Default constructor.
+ */
+RecordSet::RecordSet(void)
+    throw()
+{
+    // NOOP
+}
+
+
+/**
+ * Destructor.
+ */
+RecordSet::~RecordSet(void)
+    throw()
+{
+    Rows::iterator it = mRows.begin();
+    Rows::iterator it_end = mRows.end();
+
+    for(; it != it_end; ++it) {
+        delete *it;
+    }
+}
+
+
+/**
+ * Add a new Record.
+ */
+void
+RecordSet::addRecord(const Record* record)
+    throw()
+{
+    mRows.push_back(record);
+}
+
+
+/**
+ * Get all the rows.
+ */
+const Rows&
+RecordSet::getRows(void) const
+    throw()
+{
+    return mRows;
+}
+
+
+/**
+ * Get a particular row.
+ */
+const Record&
+RecordSet::getRow(const unsigned int row) const
+    throw(std::out_of_range)
+{
+    if (row >= mRows.size()) {
+        std::ostringstream msg;
+        msg << "index out of range: " << row << "; "
+            << "num. of records: " << mRows.size() << std::ends;
+
+        throw std::out_of_range(msg.str());
+    }
+
+    return *(mRows[row]);
+}
+
+
+} // namespace dal
+} // namespace tmw