X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fdatamodel%2Ffeatures%2FFeatureStore.java;fp=src%2Fjalview%2Fdatamodel%2Ffeatures%2FFeatureStore.java;h=ccd8b66af9774e88b13d58b6720b3f6feb91484a;hb=8406f2ced29d2c04dbabaf1cde80b1a7fa8ce8ce;hp=fe575e0186e0ee76ed8cd259effc80c8b38d99f9;hpb=c131770ae5b4886cf3dfe7779e72c9e9e0c73e42;p=jalview.git

diff --git a/src/jalview/datamodel/features/FeatureStore.java b/src/jalview/datamodel/features/FeatureStore.java
index fe575e0..ccd8b66 100644
--- a/src/jalview/datamodel/features/FeatureStore.java
+++ b/src/jalview/datamodel/features/FeatureStore.java
@@ -316,10 +316,7 @@ public abstract class FeatureStore implements FeatureStoreI
    * Adds one feature to the IntervalStore that can manage nested features
    * (creating the IntervalStore if necessary)
    */
-  protected synchronized void addNestedFeature(SequenceFeature feature)
-  {
-    features.add(feature);
-  }
+  abstract protected void addNestedFeature(SequenceFeature feature);
 
   /**
    * Adds the feature to the list of non-positional features (with lazy
@@ -366,9 +363,12 @@ public abstract class FeatureStore implements FeatureStoreI
               && listContains(contactFeatureStarts, feature);
     }
 
-    return features == null ? false : features.contains(feature);
+    return features == null ? false : containsFeature(feature);
   }
 
+
+  abstract protected boolean containsFeature(SequenceFeature feature);
+
   /**
    * Deletes the given feature from the store, returning true if it was found
    * (and deleted), else false. This method makes no assumption that the feature