else if (evalNode instanceof EvalGuardFactoryNode)
{
EvalGuardFactoryNode guardNode = (EvalGuardFactoryNode) evalNode;
try
{
GuardFactory guardFactory = context.getPatternResolutionService().create(guardNode.getPatternGuardSpec());
StreamTypeService streamTypeService = getStreamTypeService(context.getEngineURI(), context.getStatementId(), context.getEventAdapterService(), tags.getTaggedEventTypes(), tags.getArrayEventTypes(), subexpressionIdStack, "guard");
ExprValidationContext validationContext = new ExprValidationContext(streamTypeService, context.getMethodResolutionService(), null, context.getSchedulingService(), context.getVariableService(), evaluatorContext, context.getEventAdapterService(), context.getStatementName(), context.getStatementId(), context.getAnnotations(), context.getContextDescriptor());
List<ExprNode> validated = validateExpressions(guardNode.getPatternGuardSpec().getObjectParameters(), validationContext);
MatchedEventConvertor convertor = new MatchedEventConvertorImpl(tags.getTaggedEventTypes(), tags.getArrayEventTypes(), allTagNamesOrdered, context.getEventAdapterService());
guardNode.setGuardFactory(guardFactory);
guardFactory.setGuardParameters(validated, convertor);
}
catch (GuardParameterException e)
{
throw new ExprValidationException("Invalid parameter for pattern guard: " + e.getMessage(), e);
}