X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fanalysis%2Fscoremodels%2FScoreModels.java;fp=src%2Fjalview%2Fanalysis%2Fscoremodels%2FScoreModels.java;h=ebc9a26d0a0c9260f9f7b9ee16a2122aec2b886a;hb=afbf16a32ceb0b840745621e0567d81a42261910;hp=3cbd5f106f068e34da54804e0df825c19116caae;hpb=1cf39accd3b4acfe0f02ff8100c936c4dbaeee1e;p=jalview.git

diff --git a/src/jalview/analysis/scoremodels/ScoreModels.java b/src/jalview/analysis/scoremodels/ScoreModels.java
index 3cbd5f1..ebc9a26 100644
--- a/src/jalview/analysis/scoremodels/ScoreModels.java
+++ b/src/jalview/analysis/scoremodels/ScoreModels.java
@@ -41,12 +41,22 @@ public class ScoreModels
 
   private final ScoreMatrix DNA;
 
-  private static ScoreModels instance = new ScoreModels();
+  private static ScoreModels instance;
 
   private Map<String, ScoreModelI> models;
 
+  /**
+   * Answers the singleton instance of this class, with lazy initialisation
+   * (built-in score models are loaded on the first call to this method)
+   * 
+   * @return
+   */
   public static ScoreModels getInstance()
   {
+    if (instance == null)
+    {
+      instance = new ScoreModels();
+    }
     return instance;
   }
 
@@ -139,6 +149,14 @@ public class ScoreModels
   }
 
   /**
+   * Resets to just the built-in score models
+   */
+  public void reset()
+  {
+    instance = new ScoreModels();
+  }
+
+  /**
    * Returns the default peptide or nucleotide score model, currently BLOSUM62
    * or DNA
    *