/// <summary>
/// Save the specified <paramref name="context"/> changes for the given aggregate.
/// </summary>
/// <param name="aggregate">The current aggregate version for which the context applies.</param>
/// <param name="context">The command context containing the aggregate changes to be applied.</param>
public SaveResult Save(Aggregate aggregate, CommandContext context)
{
Verify.NotNull(aggregate, nameof(aggregate));
Verify.NotNull(context, nameof(context));
var commit = CreateCommit(aggregate, context);
try
{
eventStore.Save(commit);
}
catch (DuplicateCommitException)
{
Log.Warn("Duplicate commit: {0}", commit);
}
// NOTE: Apply commit directly to existing aggregate. By default, each call to `Get` returns a new `Aggregate` instance.
// Should the caller hold on to a reference to `this` aggregate instance, it is their responsibility to gaurd against
// modifications (via `aggregate.Copy()` call) if they require an unaltered instance of `aggregate`.
ApplyCommitToAggregate(commit, aggregate);
if (aggregate.Version > 0 && aggregate.Version % snapshotInterval == 0)
{
snapshotStore.Save(new Snapshot(aggregate.Id, aggregate.Version, aggregate));
}
return(new SaveResult(aggregate, commit));
}
/// <summary>
/// Appends a new commit to the event store.
/// </summary>
/// <param name="commit">The commit to append to the event store.</param>
public void Save(Commit commit)
{
eventStore.Save(commit);
if (commit.Version == 1)
{
statistics.IncrementInsertCount();
}
else
{
statistics.IncrementUpdateCount();
}
}