1 files changed, 26 insertions, 0 deletions
diff --git a/swarm/state/store.go b/swarm/state/store.go
new file mode 100644
index 000000000..fb7fe258f
--- /dev/null
+++ b/swarm/state/store.go
@@ -0,0 +1,26 @@
+// Copyright 2018 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package state
+
+// Store defines methods required to get, set, delete values for different keys
+// and close the underlying resources.
+type Store interface {
+	Get(key string, i interface{}) (err error)
+	Put(key string, i interface{}) (err error)
+	Delete(key string) (err error)
+	Close() error
+}