On Thu, Nov 6, 2008 at 10:38 PM, Roger Hoover <[EMAIL PROTECTED]> wrote: > Hi, > > I'm new to Commons SCXML but I ran into what looks like a bug to me. When > an event generated in one context gets sent to a sibling context with a > delay, the _eventdata object is null. Oddly enough, when delay unset or set > to 0ms, it works fine. I created a test file based on eventdata-03.xml to > expose it. Set delay="0ms" and the counter state machine makes it to the > thirty state. Set delay="1ms" and it doesn't. > <snip/>
A slight digression, but might be relevant background -- the EventDispatcher [1] (which handles <send> and <cancel>) is anticipated to be user-authored for any usages of the library of reasonable complexity. We do provide simple examples (see implementing classes in Javadoc) as a way to get folks started, but these do not handle any targettypes beyond 'scxml' (which is also the default). The behavior you mention above does seem like a bug. Obviously, events with or without delay are handled differently (the former are scheduled for execution). I suspect the SimpleScheduler implementation may be overlooking event payloads, or not processing them correctly. Please file a bug report in JIRA [2] and attach your test case, and I'll take a look at this. -Rahul [1] http://commons.apache.org/scxml/0.8/apidocs/org/apache/commons/scxml/EventDispatcher.html [2] http://commons.apache.org/scxml/issue-tracking.html > Any help is appreciated. Thanks, > > Roger > > > <?xml version="1.0" encoding="UTF-8"?> > <!-- > * 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. > --> > <scxml xmlns="http://www.w3.org/2005/07/scxml"; > version="1.0" > initialstate="start"> > > <parallel id="start"> > > <state id="simulatedUser"> > <datamodel> > <data name="one" expr="1" /> > <data name="two" expr="2" /> > </datamodel> > > <onentry> > <send event="event.bar" namelist="one two" delay="1ms"/> > </onentry> > <transition event="event.bar"> > <log label="'simulatedUser'" > expr="_eventdatamap['event.bar'].one + ', ' + > _eventdatamap['event.bar'].two"/> > </transition> > </state> > > <state id="counter"> > <initial> > <transition target="twenty"/> > </initial> > > <state id="twenty"> > <transition event="event.bar" > cond="_eventdatamap['event.bar'].one + > _eventdatamap['event.bar'].two eq 3" > target="thirty"/> > <transition event="event.bar"> > <log label="'event.bar in twenty state'" > expr="_eventdatamap['event.bar'].one + ', ' + > _eventdatamap['event.bar'].two"/> > </transition> > </state> > > <state id="thirty" final="true"/> > </state> > > </parallel> > > </scxml> > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
