update the registration interface

graph/bolt/quadstore.go

@@ -33,7 +33,13 @@ import (
 )
 
 func init() {
-	graph.RegisterQuadStore("bolt", true, newQuadStore, createNewBolt, nil)
+	graph.RegisterQuadStore(QuadStoreType, graph.QuadStoreRegistration{
+		NewFunc:           newQuadStore,
+		NewForRequestFunc: nil,
+		UpgradeFunc:       nil,
+		InitFunc:          createNewBolt,
+		IsPersistent:      true,
+	})
 }
 
 var (

graph/leveldb/quadstore.go

@@ -35,7 +35,13 @@ import (
 )
 
 func init() {
-	graph.RegisterQuadStore(QuadStoreType, true, newQuadStore, createNewLevelDB, nil)
+	graph.RegisterQuadStore(QuadStoreType, graph.QuadStoreRegistration{
+		NewFunc:           newQuadStore,
+		NewForRequestFunc: nil,
+		UpgradeFunc:       nil,
+		InitFunc:          createNewLevelDB,
+		IsPersistent:      true,
+	})
 }
 
 const (

graph/memstore/quadstore.go

@@ -30,9 +30,15 @@ import (
 const QuadStoreType = "memstore"
 
 func init() {
-	graph.RegisterQuadStore(QuadStoreType, false, func(string, graph.Options) (graph.QuadStore, error) {
+	graph.RegisterQuadStore(QuadStoreType, graph.QuadStoreRegistration{
-		return newQuadStore(), nil
+		NewFunc: func(string, graph.Options) (graph.QuadStore, error) {
-	}, nil, nil)
+			return newQuadStore(), nil
+		},
+		NewForRequestFunc: nil,
+		UpgradeFunc:       nil,
+		InitFunc:          nil,
+		IsPersistent:      false,
+	})
 }
 
 func cmp(a, b int64) int {

graph/mongo/quadstore.go

@@ -34,7 +34,13 @@ const DefaultDBName = "cayley"
 const QuadStoreType = "mongo"
 
 func init() {
-	graph.RegisterQuadStore(QuadStoreType, true, newQuadStore, createNewMongoGraph, nil)
+	graph.RegisterQuadStore(QuadStoreType, graph.QuadStoreRegistration{
+		NewFunc:           newQuadStore,
+		NewForRequestFunc: nil,
+		UpgradeFunc:       nil,
+		InitFunc:          createNewMongoGraph,
+		IsPersistent:      true,
+	})
 }
 
 var (