// callback when hook reporting enabled
try {
GroupByRollupPlanHook hook = (GroupByRollupPlanHook) JavaClassHelper.getAnnotationHook(validationContext.getAnnotations(), HookType.INTERNAL_GROUPROLLUP_PLAN, GroupByRollupPlanHook.class, null);
if (hook != null) {
hook.query(new GroupByRollupPlanDesc(validated, rollup));
}
}
catch (ExprValidationException e) {
throw new EPException("Failed to obtain hook for " + HookType.INTERNAL_QUERY_PLAN);
}