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Use a single storage.Database interface (#978)

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Kegsay 2020-04-24 10:38:58 +01:00 • committed by GitHub
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41
roomserver/storage/interface.go
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@ -18,13 +18,50 @@ import (
"context"
"github.com/matrix-org/dendrite/roomserver/api"
statedb "github.com/matrix-org/dendrite/roomserver/state/database"
"github.com/matrix-org/dendrite/roomserver/types"
"github.com/matrix-org/gomatrixserverlib"
)
type Database interface {
statedb.RoomStateDatabase
// Store the room state at an event in the database
AddState(
ctx context.Context,
roomNID types.RoomNID,
stateBlockNIDs []types.StateBlockNID,
state []types.StateEntry,
) (types.StateSnapshotNID, error)
// Look up the state of a room at each event for a list of string event IDs.
// Returns an error if there is an error talking to the database
// Returns a types.MissingEventError if the room state for the event IDs aren't in the database
StateAtEventIDs(ctx context.Context, eventIDs []string) ([]types.StateAtEvent, error)
// Look up the numeric IDs for a list of string event types.
// Returns a map from string event type to numeric ID for the event type.
EventTypeNIDs(ctx context.Context, eventTypes []string) (map[string]types.EventTypeNID, error)
// Look up the numeric IDs for a list of string event state keys.
// Returns a map from string state key to numeric ID for the state key.
EventStateKeyNIDs(ctx context.Context, eventStateKeys []string) (map[string]types.EventStateKeyNID, error)
// Look up the numeric state data IDs for each numeric state snapshot ID
// The returned slice is sorted by numeric state snapshot ID.
StateBlockNIDs(ctx context.Context, stateNIDs []types.StateSnapshotNID) ([]types.StateBlockNIDList, error)
// Look up the state data for each numeric state data ID
// The returned slice is sorted by numeric state data ID.
StateEntries(ctx context.Context, stateBlockNIDs []types.StateBlockNID) ([]types.StateEntryList, error)
// Look up the state data for the state key tuples for each numeric state block ID
// This is used to fetch a subset of the room state at a snapshot.
// If a block doesn't contain any of the requested tuples then it can be discarded from the result.
// The returned slice is sorted by numeric state block ID.
StateEntriesForTuples(
ctx context.Context,
stateBlockNIDs []types.StateBlockNID,
stateKeyTuples []types.StateKeyTuple,
) ([]types.StateEntryList, error)
// Look up the Events for a list of numeric event IDs.
// Returns a sorted list of events.
Events(ctx context.Context, eventNIDs []types.EventNID) ([]types.Event, error)
// Look up snapshot NID for an event ID string
SnapshotNIDFromEventID(ctx context.Context, eventID string) (types.StateSnapshotNID, error)
// Look up a room version from the room NID.
GetRoomVersionForRoomNID(ctx context.Context, roomNID types.RoomNID) (gomatrixserverlib.RoomVersion, error)
StoreEvent(ctx context.Context, event gomatrixserverlib.Event, txnAndSessionID *api.TransactionID, authEventNIDs []types.EventNID) (types.RoomNID, types.StateAtEvent, error)
StateEntriesForEventIDs(ctx context.Context, eventIDs []string) ([]types.StateEntry, error)
EventStateKeys(ctx context.Context, eventStateKeyNIDs []types.EventStateKeyNID) (map[types.EventStateKeyNID]string, error)