eventsource.go

// Copyright (c) 2020 - The Event Horizon authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package eventhorizon

// EventSource is a source of events, used for getting events for handling,
// storing, publishing etc. Mostly used in the aggregate stores.
type EventSource interface {
	// Events returns events. It should only return any new events since its
	// last invocation.
	Events() []Event
}