| /* |
| * Copyright 2009-2010 Rickard Öberg AB |
| * |
| * 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 org.apache.zest.library.eventsourcing.application.source; |
| |
| import org.apache.zest.io.Output; |
| import org.apache.zest.library.eventsourcing.application.api.TransactionApplicationEvents; |
| |
| /** |
| * Stream of event transactions. Registering with a stream will |
| * allow the subscriber to get callbacks when new transactions |
| * are available. The callbacks are done asynchronously. |
| */ |
| public interface ApplicationEventStream |
| { |
| void registerListener( Output<TransactionApplicationEvents, ? extends Throwable> listener ); |
| |
| void unregisterListener( Output<TransactionApplicationEvents, ? extends Throwable> listener ); |
| } |