X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fdatamodel%2Ffeatures%2FNCNode.java;h=007f3b12cbd7b8821bd9b84676c38d38f38dfcc4;hb=c2e16e95b564932deda33dc59ecaea367e7b33b0;hp=5fb2d0d9f6e87cc77736251d8eb0cb1d6035fb9f;hpb=7f4b42c9b73c4e5e101aa2bb390af2d1df9a0f0a;p=jalview.git

diff --git a/src/jalview/datamodel/features/NCNode.java b/src/jalview/datamodel/features/NCNode.java
index 5fb2d0d..007f3b1 100644
--- a/src/jalview/datamodel/features/NCNode.java
+++ b/src/jalview/datamodel/features/NCNode.java
@@ -1,5 +1,7 @@
 package jalview.datamodel.features;
 
+import jalview.datamodel.ContiguousI;
+
 import java.util.ArrayList;
 import java.util.List;
 
@@ -40,7 +42,7 @@ class NCNode<V extends ContiguousI> implements ContiguousI
    */
   NCNode(V range)
   {
-    List<V> ranges = new ArrayList<V>();
+    List<V> ranges = new ArrayList<>();
     ranges.add(range);
     build(ranges);
   }
@@ -49,7 +51,7 @@ class NCNode<V extends ContiguousI> implements ContiguousI
   {
     region = entry;
     subregions = newNCList;
-    size = 1 + newNCList.getSize();
+    size = 1 + newNCList.size();
   }
 
   /**
@@ -150,6 +152,7 @@ class NCNode<V extends ContiguousI> implements ContiguousI
     {
       subregions.add(entry);
     }
+    size++;
   }
 
   /**
@@ -227,4 +230,26 @@ class NCNode<V extends ContiguousI> implements ContiguousI
   {
     return subregions;
   }
+
+  /**
+   * Nulls the subregion reference if it is empty (after a delete entry
+   * operation)
+   */
+  void deleteSubRegionsIfEmpty()
+  {
+    if (subregions != null && subregions.size() == 0)
+    {
+      subregions = null;
+    }
+  }
+
+  /**
+   * Answers the (deep) size of this node i.e. the number of ranges it models
+   * 
+   * @return
+   */
+  int size()
+  {
+    return size;
+  }
 }