public ViewableActivationResult Activate(
AgentInstanceContext agentInstanceContext,
bool isSubselect,
bool isRecoveringResilient)
{
PatternAgentInstanceContext patternAgentInstanceContext =
agentInstanceContext.StatementContext.PatternContextFactory.CreatePatternAgentContext(
_patternContext, agentInstanceContext, _hasConsumingFilter);
EvalRootNode rootNode = EvalNodeUtil.MakeRootNodeFromFactory(_rootFactoryNode, patternAgentInstanceContext);
EventStream sourceEventStream = _isCanIterate ?
(EventStream) new ZeroDepthStreamIterable(_eventType) :
(EventStream) new ZeroDepthStreamNoIterate(_eventType);
StatementContext statementContext = _patternContext.StatementContext;
PatternMatchCallback callback = matchEvent =>
{
EventBean compositeEvent = statementContext.EventAdapterService.AdapterForTypedMap(
matchEvent, _eventType);
sourceEventStream.Insert(compositeEvent);
};
var rootState = (EvalRootState)rootNode.Start(callback, _patternContext, isRecoveringResilient);
return(new ViewableActivationResult(
sourceEventStream, rootState, null, rootState, rootState, _suppressSameEventMatches, _discardPartialsOnMatch, null));
}
