1 files changed, 24 insertions, 0 deletions
diff --git a/searchlib/src/vespa/searchlib/util/data_buffer_writer.h b/searchlib/src/vespa/searchlib/util/data_buffer_writer.h
new file mode 100644
index 00000000000..0d16bdfc4f4
--- /dev/null
+++ b/searchlib/src/vespa/searchlib/util/data_buffer_writer.h
@@ -0,0 +1,24 @@
+// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+
+#pragma once
+
+#include "bufferwriter.h"
+
+namespace vespalib { class DataBuffer; }
+
+namespace search {
+
+/**
+ * Class to write to a data buffer, used during migration of
+ * attribute vector saver implementation.
+ */
+class DataBufferWriter : public BufferWriter
+{
+    vespalib::DataBuffer& _data_buffer;
+public:
+    DataBufferWriter(vespalib::DataBuffer& data_buffer);
+    ~DataBufferWriter();
+    void flush() override;
+};
+
+}