Separate UIDs and revisions

1 files changed, 30 insertions, 6 deletions

diff --git a/common/storage.h b/common/storage.h
index 8904148..53fcf41 100644
--- a/common/storage.h
+++ b/common/storage.h
@@ -32,6 +32,11 @@
 namespace Sink {
 namespace Storage {
 
+extern int AllowDuplicates;
+extern int IntegerKeys;
+// Only useful with AllowDuplicates
+extern int IntegerValues;
+
 struct SINK_EXPORT DbLayout {
     typedef QMap<QByteArray, int> Databases;
     DbLayout();
@@ -80,15 +85,24 @@ public:
          */
         bool write(const QByteArray &key, const QByteArray &value, const std::function<void(const DataStore::Error &error)> &errorHandler = std::function<void(const DataStore::Error &error)>());
 
+        // TODO: change resultHandlers and errorHandlers to take size_t instead
+        // of QByteArray for keys
+        bool write(const size_t key, const QByteArray &value, const std::function<void(const DataStore::Error &error)> &errorHandler = std::function<void(const DataStore::Error &error)>());
+
         /**
          * Remove a key
          */
         void remove(const QByteArray &key, const std::function<void(const DataStore::Error &error)> &errorHandler = std::function<void(const DataStore::Error &error)>());
+
+        void remove(const size_t key, const std::function<void(const DataStore::Error &error)> &errorHandler = std::function<void(const DataStore::Error &error)>());
+
         /**
          * Remove a key-value pair
          */
         void remove(const QByteArray &key, const QByteArray &value, const std::function<void(const DataStore::Error &error)> &errorHandler = std::function<void(const DataStore::Error &error)>());
 
+        void remove(const size_t key, const QByteArray &value, const std::function<void(const DataStore::Error &error)> &errorHandler = std::function<void(const DataStore::Error &error)>());
+
         /**
         * Read values with a given key.
         *
@@ -101,6 +115,9 @@ public:
         int scan(const QByteArray &key, const std::function<bool(const QByteArray &key, const QByteArray &value)> &resultHandler,
             const std::function<void(const DataStore::Error &error)> &errorHandler = std::function<void(const DataStore::Error &error)>(), bool findSubstringKeys = false, bool skipInternalKeys = true) const;
 
+        int scan(const size_t key, const std::function<bool(size_t key, const QByteArray &value)> &resultHandler,
+            const std::function<void(const DataStore::Error &error)> &errorHandler = std::function<void(const DataStore::Error &error)>(), bool skipInternalKeys = true) const;
+
         /**
          * Finds the last value in a series matched by prefix.
          *
@@ -119,6 +136,10 @@ public:
             const std::function<void(const DataStore::Error &error)> &errorHandler =
                 std::function<void(const DataStore::Error &error)>()) const;
 
+        int findAllInRange(const size_t lowerBound, const size_t upperBound,
+            const std::function<void(const QByteArray &key, const QByteArray &value)> &resultHandler,
+            const std::function<void(const DataStore::Error &error)> &errorHandler = {}) const;
+
         /**
          * Returns true if the database contains the substring key.
          */
@@ -163,8 +184,9 @@ public:
 
         QList<QByteArray> getDatabaseNames() const;
 
-        NamedDatabase openDatabase(const QByteArray &name = {"default"},
-            const std::function<void(const DataStore::Error &error)> &errorHandler = {}, bool allowDuplicates = false) const;
+        NamedDatabase openDatabase(const QByteArray &name = { "default" },
+            const std::function<void(const DataStore::Error &error)> &errorHandler = {},
+            int flags = 0) const;
 
         Transaction(Transaction &&other);
         Transaction &operator=(Transaction &&other);
@@ -224,10 +246,12 @@ public:
     static qint64 cleanedUpRevision(const Transaction &);
     static void setCleanedUpRevision(Transaction &, qint64 revision);
 
-    static QByteArray getUidFromRevision(const Transaction &, qint64 revision);
-    static QByteArray getTypeFromRevision(const Transaction &, qint64 revision);
-    static void recordRevision(Transaction &, qint64 revision, const QByteArray &uid, const QByteArray &type);
-    static void removeRevision(Transaction &, qint64 revision);
+    static QByteArray getUidFromRevision(const Transaction &, size_t revision);
+    static size_t getLatestRevisionFromUid(Transaction &, const QByteArray &uid);
+    static QList<size_t> getRevisionsUntilFromUid(DataStore::Transaction &, const QByteArray &uid, size_t lastRevision);
+    static QByteArray getTypeFromRevision(const Transaction &, size_t revision);
+    static void recordRevision(Transaction &, size_t revision, const QByteArray &uid, const QByteArray &type);
+    static void removeRevision(Transaction &, size_t revision);
     static void recordUid(DataStore::Transaction &transaction, const QByteArray &uid, const QByteArray &type);
     static void removeUid(DataStore::Transaction &transaction, const QByteArray &uid, const QByteArray &type);
     static void getUids(const QByteArray &type, const Transaction &, const std::function<void(const QByteArray &uid)> &);