walletdb: Introduce WalletDatabase abstract class

Make WalletDatabase actually an abstract class and not just a typedef
for BerkeleyDatabase. Have BerkeleyDatabase inherit this class.

1 files changed, 4 insertions, 7 deletions

diff --git a/src/wallet/walletdb.h b/src/wallet/walletdb.h
index 6b55361c07..7c5bf7652b 100644
--- a/src/wallet/walletdb.h
+++ b/src/wallet/walletdb.h
@@ -40,9 +40,6 @@ class CWalletTx;
 class uint160;
 class uint256;
 
-/** Backend-agnostic database type. */
-using WalletDatabase = BerkeleyDatabase;
-
 /** Error statuses for the wallet database */
 enum class DBErrors
 {
@@ -280,7 +277,7 @@ public:
     //! Abort current transaction
     bool TxnAbort();
 private:
-    std::unique_ptr<BerkeleyBatch> m_batch;
+    std::unique_ptr<DatabaseBatch> m_batch;
     WalletDatabase& m_database;
 };
 
@@ -294,12 +291,12 @@ bool ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue, st
 bool IsWalletLoaded(const fs::path& wallet_path);
 
 /** Return object for accessing database at specified path. */
-std::unique_ptr<BerkeleyDatabase> CreateWalletDatabase(const fs::path& path);
+std::unique_ptr<WalletDatabase> CreateWalletDatabase(const fs::path& path);
 
 /** Return object for accessing dummy database with no read/write capabilities. */
-std::unique_ptr<BerkeleyDatabase> CreateDummyWalletDatabase();
+std::unique_ptr<WalletDatabase> CreateDummyWalletDatabase();
 
 /** Return object for accessing temporary in-memory database. */
-std::unique_ptr<BerkeleyDatabase> CreateMockWalletDatabase();
+std::unique_ptr<WalletDatabase> CreateMockWalletDatabase();
 
 #endif // BITCOIN_WALLET_WALLETDB_H