1 files changed, 92 insertions, 0 deletions
diff --git a/storage/mroonga/vendor/groonga/lib/dat/cursor-factory.cpp b/storage/mroonga/vendor/groonga/lib/dat/cursor-factory.cpp
new file mode 100644
index 00000000..0e97e527
--- /dev/null
+++ b/storage/mroonga/vendor/groonga/lib/dat/cursor-factory.cpp
@@ -0,0 +1,92 @@
+/* -*- c-basic-offset: 2 -*- */
+/* Copyright(C) 2011 Brazil
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License version 2.1 as published by the Free Software Foundation.
+
+  This library 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
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1335  USA
+*/
+
+#include "cursor-factory.hpp"
+#include "id-cursor.hpp"
+#include "key-cursor.hpp"
+#include "prefix-cursor.hpp"
+#include "predictive-cursor.hpp"
+
+#include <new>
+
+namespace grn {
+namespace dat {
+
+Cursor *CursorFactory::open(const Trie &trie,
+                            const void *min_ptr, UInt32 min_length,
+                            const void *max_ptr, UInt32 max_length,
+                            UInt32 offset,
+                            UInt32 limit,
+                            UInt32 flags) {
+  const UInt32 cursor_type = flags & CURSOR_TYPE_MASK;
+  switch (cursor_type) {
+    case ID_RANGE_CURSOR: {
+      IdCursor *cursor = new (std::nothrow) IdCursor;
+      GRN_DAT_THROW_IF(MEMORY_ERROR, cursor == NULL);
+      try {
+        cursor->open(trie, String(min_ptr, min_length),
+                     String(max_ptr, max_length), offset, limit, flags);
+      } catch (...) {
+        delete cursor;
+        throw;
+      }
+      return cursor;
+    }
+    case KEY_RANGE_CURSOR: {
+      KeyCursor *cursor = new (std::nothrow) KeyCursor;
+      GRN_DAT_THROW_IF(MEMORY_ERROR, cursor == NULL);
+      try {
+        cursor->open(trie, String(min_ptr, min_length),
+                     String(max_ptr, max_length), offset, limit, flags);
+      } catch (...) {
+        delete cursor;
+        throw;
+      }
+      return cursor;
+    }
+    case PREFIX_CURSOR: {
+      PrefixCursor *cursor = new (std::nothrow) PrefixCursor;
+      GRN_DAT_THROW_IF(MEMORY_ERROR, cursor == NULL);
+      try {
+        cursor->open(trie, String(max_ptr, max_length), min_length,
+                     offset, limit, flags);
+      } catch (...) {
+        delete cursor;
+        throw;
+      }
+      return cursor;
+    }
+    case PREDICTIVE_CURSOR: {
+      PredictiveCursor *cursor = new (std::nothrow) PredictiveCursor;
+      GRN_DAT_THROW_IF(MEMORY_ERROR, cursor == NULL);
+      try {
+        cursor->open(trie, String(min_ptr, min_length),
+                     offset, limit, flags);
+      } catch (...) {
+        delete cursor;
+        throw;
+      }
+      return cursor;
+    }
+    default: {
+      GRN_DAT_THROW(PARAM_ERROR, "unknown cursor type");
+    }
+  }
+}
+
+}  // namespace dat
+}  // namespace grn