For sequential executions (isSequential="true"), only the first value from the collection gets assigned to all the executions. For parallel executions (isSequential="false"), it works fine and each execution gets one value from the collection.
Here's the snippet:
<serviceTask id="servicetask1" name="Serial Multi Task" activiti:class="com.activity.test.SerialMultiDelegate" activiti:assignee="${item}">
<multiInstanceLoopCharacteristics isSequential="false" activiti:collection="${items}" activiti:elementVariable="item" />
</serviceTask>
public class SerialMultiDelegate implements JavaDelegate {
@Override
public void execute(DelegateExecution execution) throws Exception {
String item = (String) execution.getVariable("item");
Thread.sleep((System.currentTimeMillis() % 5) * 1000);
System.out.println("Item: " + item);
}
}
public class SerialMultiRunner {
public static void main(String[] args) {
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
RepositoryService repositoryService = processEngine
.getRepositoryService();
repositoryService.createDeployment().addClasspathResource(
"diagrams/SerialMulti.bpmn20.xml")
.deploy();
RuntimeService runtimeService = processEngine.getRuntimeService();
Collection<String> items = new ArrayList<String>();
items.add("East");
items.add("West");
items.add("North");
items.add("South");
Map<String, Object> processVariables = new HashMap<String, Object>();
processVariables.put("items", items);
runtimeService.startProcessInstanceByKey("SerialMulti",
processVariables);
}
}
Output (When isSequential="true")
Item: East
Item: East
Item: East
Item: East
Output (When isSequential="false")
Item: East
Item: West
Item: North
Item: South
Has anyone encountered a similar issue? Is this a bug or expected behavior?
