X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fapi%2FAlignCalcManagerI.java;h=e2982c13b47d597a5bf85ba8dad98b0c747bfafd;hb=d64f1df4fdb6c90c7ed36624174eac8b1dd52511;hp=a7b17c668dd5f056e7853813cf6a01a04ad59046;hpb=d668b0fe1a9eefb95c935bc6c71a88e67642e712;p=jalview.git

diff --git a/src/jalview/api/AlignCalcManagerI.java b/src/jalview/api/AlignCalcManagerI.java
index a7b17c6..e2982c1 100644
--- a/src/jalview/api/AlignCalcManagerI.java
+++ b/src/jalview/api/AlignCalcManagerI.java
@@ -1,9 +1,9 @@
 package jalview.api;
 
-import java.util.List;
-
 import jalview.datamodel.AlignmentAnnotation;
 
+import java.util.List;
+
 public interface AlignCalcManagerI
 {
 
@@ -105,4 +105,20 @@ public interface AlignCalcManagerI
    */
   boolean startRegisteredWorkersOfClass(Class workerClass);
 
+  /**
+   * work out if there is an instance of a worker that is *waiting* to start
+   * calculating
+   *
+   * @param workingClass
+   * @return true if workingClass is already waiting to calculate. false if it
+   *         is calculating, or not queued.
+   */
+  boolean isPending(AlignCalcWorkerI workingClass);
+
+  /**
+   * deregister and otherwise remove any registered and working instances of the given worker type
+   * @param typeToRemove
+   */
+  void removeRegisteredWorkersOfClass(Class typeToRemove);
+
 }