JAL - 3690 AlignCalc rebuilt - FutureTask-based manager

[jalview.git] / src / jalview / api / AlignCalcListener.java

diff --git a/src/jalview/api/AlignCalcListener.java b/src/jalview/api/AlignCalcListener.java
new file mode 100644 (file)
index 0000000..96491fa
--- /dev/null
+++ b/src/jalview/api/AlignCalcListener.java
@@ -0,0 +1,11 @@
+package jalview.api;
+
+import java.util.EventListener;
+
+public interface AlignCalcListener extends EventListener
+{
+  default void workerQueued(AlignCalcWorkerI worker) {}
+  default void workerStarted(AlignCalcWorkerI worker) {}
+  default void workerCompleted(AlignCalcWorkerI worker) {}
+  default void workerExceptional(AlignCalcWorkerI worker, Throwable throwable) {}
+}