--- /dev/null
+package fr.orsay.lri.varna.applications.fragseq;
+
+import java.awt.datatransfer.DataFlavor;
+import java.awt.datatransfer.Transferable;
+import java.awt.datatransfer.UnsupportedFlavorException;
+import java.io.File;
+import java.io.FileFilter;
+import java.io.FileNotFoundException;
+import java.io.FilenameFilter;
+import java.io.IOException;
+import java.util.Collection;
+import java.util.Date;
+import java.util.regex.Pattern;
+
+import fr.orsay.lri.varna.exceptions.ExceptionExportFailed;
+import fr.orsay.lri.varna.exceptions.ExceptionFileFormatOrSyntax;
+import fr.orsay.lri.varna.exceptions.ExceptionLoadingFailed;
+import fr.orsay.lri.varna.exceptions.ExceptionPermissionDenied;
+import fr.orsay.lri.varna.exceptions.ExceptionUnmatchedClosingParentheses;
+import fr.orsay.lri.varna.factories.RNAFactory;
+import fr.orsay.lri.varna.models.rna.RNA;
+
+public abstract class FragSeqModel implements Comparable<FragSeqModel> {
+
+ public abstract String getID();
+
+ public int compareTo(FragSeqModel o) {
+ // TODO Auto-generated method stub
+ return 0;
+ }
+
+}