Add 'user friendly' datastore API.

service/datastore/checkfilter.go

Index: service/datastore/checkfilter.go
diff --git a/service/rawdatastore/checkfilter.go b/service/datastore/checkfilter.go
similarity index 67%
rename from service/rawdatastore/checkfilter.go
rename to service/datastore/checkfilter.go
index 002c965f5437ede665dab45770b842d0b19526bf..87d30eb29a1c3f68189d786412dd4aa2901649c1 100644
--- a/service/rawdatastore/checkfilter.go
+++ b/service/datastore/checkfilter.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-package rawdatastore
+package datastore
 
 import (
 	"fmt"
@@ -13,7 +13,7 @@ import (
 )
 
 type checkFilter struct {
-	Interface
+	RawInterface
 
 	aid string
 	ns  string
@@ -23,14 +23,14 @@ func (tcf *checkFilter) RunInTransaction(f func(c context.Context) error, opts *
 	if f == nil {
 		return nil
 	}
-	return tcf.Interface.RunInTransaction(f, opts)
+	return tcf.RawInterface.RunInTransaction(f, opts)
 }
 
-func (tcf *checkFilter) Run(q Query, cb RunCB) error {
+func (tcf *checkFilter) Run(q Query, cb RawRunCB) error {
 	if q == nil || cb == nil {
 		return nil
 	}
-	return tcf.Interface.Run(q, cb)
+	return tcf.RawInterface.Run(q, cb)
 }
 
 func (tcf *checkFilter) GetMulti(keys []Key, cb GetMultiCB) error {
@@ -49,12 +49,12 @@ func (tcf *checkFilter) GetMulti(keys []Key, cb GetMultiCB) error {
 		}
 		return nil
 	}
-	return tcf.Interface.GetMulti(keys, cb)
+	return tcf.RawInterface.GetMulti(keys, cb)
 }
 
-func (tcf *checkFilter) PutMulti(keys []Key, vals []PropertyLoadSaver, cb PutMultiCB) error {
+func (tcf *checkFilter) PutMulti(keys []Key, vals []PropertyMap, cb PutMultiCB) error {
 	if len(keys) != len(vals) {
-		return fmt.Errorf("rawdatastore: GetMulti with mismatched keys/vals lengths (%d/%d)", len(keys), len(vals))
+		return fmt.Errorf("datastore: GetMulti with mismatched keys/vals lengths (%d/%d)", len(keys), len(vals))
 	}
 	if len(keys) == 0 {
 		return nil
@@ -70,7 +70,7 @@ func (tcf *checkFilter) PutMulti(keys []Key, vals []PropertyLoadSaver, cb PutMul
 		}
 		v := vals[i]
 		if v == nil {
-			if !lme.Assign(i, errors.New("rawdatastore: PutMulti got nil vals entry")) {
+			if !lme.Assign(i, errors.New("datastore: PutMulti got nil vals entry")) {
 				lme.Assign(i, v.Problem())
 			}
 		}
@@ -82,20 +82,7 @@ func (tcf *checkFilter) PutMulti(keys []Key, vals []PropertyLoadSaver, cb PutMul
 		return nil
 	}
 
-	err := error(nil)
-	pmVals := make([]PropertyLoadSaver, len(vals))
-	for i, val := range vals {
-		pmVals[i], err = val.Save(true)
-		lme.Assign(i, err)
-	}
-	if me := lme.Get(); me != nil {
-		for _, err := range me.(errors.MultiError) {
-			cb(nil, err)
-		}
-		return nil
-	}
-
-	return tcf.Interface.PutMulti(keys, pmVals, cb)
+	return tcf.RawInterface.PutMulti(keys, vals, cb)
 }
 
 func (tcf *checkFilter) DeleteMulti(keys []Key, cb DeleteMultiCB) error {
@@ -114,10 +101,10 @@ func (tcf *checkFilter) DeleteMulti(keys []Key, cb DeleteMultiCB) error {
 		}
 		return nil
 	}
-	return tcf.Interface.DeleteMulti(keys, cb)
+	return tcf.RawInterface.DeleteMulti(keys, cb)
 }
 
-func applyCheckFilter(c context.Context, i Interface) Interface {
+func applyCheckFilter(c context.Context, i RawInterface) RawInterface {
 	inf := info.Get(c)
 	return &checkFilter{i, inf.AppID(), inf.GetNamespace()}
 }