I made a test in order to force the HistoryVariable activation but didn't work.
The test code is that:
| if( execution.getVariable("message") != null ) {
| ((ExecutionImpl) execution).removeVariable("message");
| }
| ((ExecutionImpl) execution).createVariable("message", message, null, true);
|
The problem is inside the createVariable implementation logic where the
VariableUpdate event is being fired before the CreateVariable event.
The VariableUpdate event is fired by the Variable object, when you do
"setValue" the implementation is firing the VariableUpdate event:
| variable.setKey(key);
| variable.setExecution(getExecution());
| variable.setTask(getTask());
| variable.setHistoryEnabled(isHistoryEnabled);
|
| variable.setValue(value);
|
| long dbid = DbidGenerator.getDbidGenerator().getNextId();
| variable.setDbid(dbid);
|
| if (isHistoryEnabled) {
| HistoryEvent.fire(new VariableCreate(variable));
| }
|
Maybe a solution could be do something similar to that:
| variable.setKey(key);
| variable.setExecution(getExecution());
| variable.setTask(getTask());
| variable.setHistoryEnabled(false);
|
| variable.setValue(value);
|
| long dbid = DbidGenerator.getDbidGenerator().getNextId();
| variable.setDbid(dbid);
|
| if (isHistoryEnabled) {
| HistoryEvent.fire(new VariableCreate(variable));
| }
|
| variable.setHistoryEnabled(isHistoryEnabled);
|
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