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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/leveldb/quadstore.go
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@ -32,6 +32,7 @@ import (
"github.com/google/cayley/graph"
"github.com/google/cayley/graph/iterator"
"github.com/google/cayley/keys"
"github.com/google/cayley/quad"
)
@ -135,8 +136,8 @@ func (qs *QuadStore) Size() int64 {
return qs.size
}
func (qs *QuadStore) Horizon() int64 {
return qs.horizon
func (qs *QuadStore) Horizon() graph.PrimaryKey {
return keys.NewSequentialKey(qs.horizon)
}
func hashOf(s string) []byte {
@ -190,7 +191,7 @@ func (qs *QuadStore) ApplyDeltas(deltas []graph.Delta) error {
return err
}
batch.Put(keyFor(d), bytes)
err = qs.buildQuadWrite(batch, d.Quad, d.ID, d.Action == graph.Add)
err = qs.buildQuadWrite(batch, d.Quad, d.ID.Int(), d.Action == graph.Add)
if err != nil {
return err
}
@ -205,7 +206,7 @@ func (qs *QuadStore) ApplyDeltas(deltas []graph.Delta) error {
resizeMap[d.Quad.Label] += delta
}
sizeChange += delta
qs.horizon = d.ID
qs.horizon = d.ID.Int()
}
for k, v := range resizeMap {
if v != 0 {
@ -227,7 +228,7 @@ func (qs *QuadStore) ApplyDeltas(deltas []graph.Delta) error {
func keyFor(d graph.Delta) []byte {
key := make([]byte, 0, 19)
key = append(key, 'd')
key = append(key, []byte(fmt.Sprintf("%018x", d.ID))...)
key = append(key, []byte(fmt.Sprintf("%018x", d.ID.Int()))...)
return key
}