1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.commons.scxml2.invoke; 18 19 import org.apache.commons.scxml2.SCXMLIOProcessor; 20 import org.apache.commons.scxml2.TriggerEvent; 21 22 /** 23 * Trigger the given {@link TriggerEvent} on the given 24 * state machine executor asynchronously, once. 25 */ 26 class AsyncTrigger implements Runnable { 27 28 /** The SCXML state machine I/O Processor to deliver the event to. */ 29 private final SCXMLIOProcessor ioProcessor; 30 /** The event to be triggered. */ 31 private final TriggerEvent event; 32 33 /** 34 * Constructor. 35 * 36 * @param ioProcessor The {@link org.apache.commons.scxml2.SCXMLIOProcessor} to trigger the event on. 37 * @param event The {@link TriggerEvent}. 38 */ 39 AsyncTrigger(final SCXMLIOProcessor ioProcessor, final TriggerEvent event) { 40 this.ioProcessor = ioProcessor; 41 this.event = event; 42 } 43 44 /** 45 * Fire the trigger asynchronously. 46 */ 47 public void start() { 48 new Thread(this).start(); 49 } 50 51 /** 52 * Fire the event(s). 53 */ 54 public void run() { 55 ioProcessor.addEvent(event); 56 } 57 58 } 59