return flag indicating if annotations were actually deleted from alignment

[jalview.git] / src / jalview / datamodel / AlignmentI.java

diff --git a/src/jalview/datamodel/AlignmentI.java b/src/jalview/datamodel/AlignmentI.java
index ef1862e..34a5ff2 100755 (executable)
--- a/src/jalview/datamodel/AlignmentI.java
+++ b/src/jalview/datamodel/AlignmentI.java
@@ -184,8 +184,9 @@ public interface AlignmentI
    * vector. Otherwise, it will do nothing.
    * 
    * @param aa the annotation to delete
+   * @return true if annotation was deleted from this alignment.
    */
-  public void deleteAnnotation(AlignmentAnnotation aa);
+  public boolean deleteAnnotation(AlignmentAnnotation aa);
 
   /**
    * Get the annotation associated with this alignment