1 files changed, 10 insertions, 0 deletions
diff --git a/sources/shared/DoCallback.java b/sources/shared/DoCallback.java
new file mode 100644
index 0000000..7552a52
--- /dev/null
+++ b/sources/shared/DoCallback.java
@@ -0,0 +1,10 @@
+package shared;
+
+/**
+ * This interface specifies a callback routine.
+ * @author buetow
+ *
+ */
+public interface DoCallback {
+  public void callback(Object o);
+}