object store in api

CHANGELOG.md

@@ -41,6 +41,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 ### Features
 
 * (baseapp) [#205](https://github.com/crypto-org-chain/cosmos-sdk/pull/205) Add `TxExecutor` baseapp option, add `TxIndex`/`TxCount`/`MsgIndex`/`BlockGasUsed` fields to `Context, to support tx parallel execution.
+* (baseapp) [#205](https://github.com/crypto-org-chain/cosmos-sdk/pull/205) Support mount object store in baseapp, add `ObjectStore` api in context..
 
 ## [Unreleased-Upstream]
 

baseapp/baseapp.go

@@ -344,6 +344,17 @@ func (app *BaseApp) MountMemoryStores(keys map[string]*storetypes.MemoryStoreKey
 	}
 }
 
+// MountObjectStores mounts all in-memory KVStores with the BaseApp's internal
+// commit multi-store.
+func (app *BaseApp) MountObjectStores(keys map[string]*storetypes.ObjectStoreKey) {
+	skeys := maps.Keys(keys)
+	sort.Strings(skeys)
+	for _, key := range skeys {
+		memKey := keys[key]
+		app.MountStore(memKey, storetypes.StoreTypeObject)
+	}
+}
+
 // MountStore mounts a store to the provided key in the BaseApp multistore,
 // using the default DB.
 func (app *BaseApp) MountStore(key storetypes.StoreKey, typ storetypes.StoreType) {

types/context.go

@@ -377,6 +377,12 @@ func (c Context) TransientStore(key storetypes.StoreKey) storetypes.KVStore {
 	return gaskv.NewStore(c.ms.GetKVStore(key), c.gasMeter, c.transientKVGasConfig)
 }
 
+// ObjectStore fetches an object store from the MultiStore,
+// TODO gas accounting for object store.
+func (c Context) OjectStore(key storetypes.StoreKey) storetypes.ObjKVStore {
+	return c.ms.GetObjKVStore(key)
+}
+
 // CacheContext returns a new Context with the multi-store cached and a new
 // EventManager. The cached context is written to the context when writeCache
 // is called. Note, events are automatically emitted on the parent context's