| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.taverna.workflowmodel; |
| |
| import org.apache.taverna.facade.ResultListener; |
| |
| /** |
| * Output port of a DataFlow, exposes an internal EventHandlingInputPort into |
| * which the internal workflow logic pushes data to be exposed outside the |
| * workflow boundary. |
| * |
| */ |
| public interface DataflowOutputPort extends EventForwardingOutputPort, |
| DataflowPort { |
| /** |
| * Get the internal input port for this workflow output |
| * |
| * @return port into which the workflow can push data for this output |
| */ |
| EventHandlingInputPort getInternalInputPort(); |
| |
| /** |
| * Add a ResultListener, capable of listening to results being received by |
| * the output port |
| * |
| * @param listener |
| * the ResultListener |
| * |
| * @see ResultListener |
| */ |
| void addResultListener(ResultListener listener); |
| |
| /** |
| * Remove a ResultListener |
| * |
| * @param listener |
| * the ResultListener |
| * |
| * @see ResultListener |
| */ |
| void removeResultListener(ResultListener listener); |
| } |