1 files changed, 35 insertions, 0 deletions

diff --git a/common/index.h b/common/index.h
new file mode 100644
index 0000000..aea654a
--- /dev/null
+++ b/common/index.h
@@ -0,0 +1,35 @@
+#pragma once
+
+#include <string>
+#include <functional>
+#include <QString>
+#include "storage.h"
+
+/**
+ * An index for value pairs.
+ */
+class Index
+{
+public:
+    class Error
+    {
+    public:
+        Error(const std::string &s, int c, const std::string &m)
+            : store(s), message(m), code(c) {}
+        std::string store;
+        std::string message;
+        int code;
+    };
+
+    Index(const QString &storageRoot, const QString &name, Akonadi2::Storage::AccessMode mode = Akonadi2::Storage::ReadOnly);
+
+    void add(const QByteArray &key, const QByteArray &value);
+    // void remove(const QByteArray &key, const QByteArray &value);
+
+    void lookup(const QByteArray &key, const std::function<void(const QByteArray &value)> &resultHandler,
+                                       const std::function<void(const Error &error)> &errorHandler);
+
+private:
+    Q_DISABLE_COPY(Index);
+    Akonadi2::Storage mStorage;
+};