1 files changed, 6 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/sys/AggregateOutput.cpp b/qpid/cpp/src/qpid/sys/AggregateOutput.cpp
index 57cc0c5a33..2fad28c381 100644
--- a/qpid/cpp/src/qpid/sys/AggregateOutput.cpp
+++ b/qpid/cpp/src/qpid/sys/AggregateOutput.cpp
@@ -31,6 +31,12 @@ void AggregateOutput::activateOutput()
     control.activateOutput();
 }
 
+bool AggregateOutput::hasOutput() {
+    for (TaskList::const_iterator i = tasks.begin(); i != tasks.end(); ++i) 
+        if ((*i)->hasOutput()) return true;
+    return false;
+}
+
 bool AggregateOutput::doOutput()
 {
     bool result = false;