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Refactoring of Delta.IDs & horizon functionality with a PrimaryKey type, needed for implementing UUID based primary keys for backends such as the appengine datastore \n Tests: at top level and if available per backend, if not then just visual

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This commit is contained in:
panamafrancis 2014-12-01 23:00:06 +01:00
parent 26ceed35cc
commit abda6cbbb0
11 changed files with 135 additions and 44 deletions
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11
graph/mongo/quadstore.go
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@ -26,6 +26,7 @@ import (
"github.com/barakmich/glog"
"github.com/google/cayley/graph"
"github.com/google/cayley/graph/iterator"
"github.com/google/cayley/keys"
"github.com/google/cayley/quad"
)
@ -200,7 +201,7 @@ func (qs *QuadStore) updateLog(d graph.Delta) error {
action = "Delete"
}
entry := MongoLogEntry{
LogID: d.ID,
LogID: d.ID.Int(),
Action: action,
Key: qs.getIDForQuad(d.Quad),
Timestamp: d.Timestamp.UnixNano(),
@ -239,7 +240,7 @@ func (qs *QuadStore) ApplyDeltas(in []graph.Delta) error {
}
}
for _, d := range in {
err := qs.updateQuad(d.Quad, d.ID, d.Action)
err := qs.updateQuad(d.Quad, d.ID.Int(), d.Action)
if err != nil {
return err
}
@ -315,16 +316,16 @@ func (qs *QuadStore) Size() int64 {
return int64(count)
}
func (qs *QuadStore) Horizon() int64 {
func (qs *QuadStore) Horizon() graph.PrimaryKey {
var log MongoLogEntry
err := qs.db.C("log").Find(nil).Sort("-LogID").One(&log)
if err != nil {
if err == mgo.ErrNotFound {
return 0
return keys.NewSequentialKey(0)
}
glog.Errorf("Could not get Horizon from Mongo: %v", err)
}
return log.LogID
return keys.NewSequentialKey(log.LogID)
}
func (qs *QuadStore) FixedIterator() graph.FixedIterator {