X-Git-Url: http://git.nguyen.vg/gitweb/?a=blobdiff_plain;f=TextCollection.h;h=6a4eb1cc4252382c8092840c6f64a0d6c4e23702;hb=2f60ad9adad7101d6a2d47313ca202c1ad9bfdd4;hp=e7f0d4bb17de878d0d028c29d62b5b41ae50bad7;hpb=ccc18959e93d8986c0ce81209865a0a2b5f42be6;p=SXSI%2FTextCollection.git

diff --git a/TextCollection.h b/TextCollection.h
index e7f0d4b..6a4eb1c 100644
--- a/TextCollection.h
+++ b/TextCollection.h
@@ -86,7 +86,13 @@ namespace SXSI
          * New texts can not be inserted after this operation.
          */
         virtual void MakeStatic() = 0;
-        
+	
+	/**
+	   tests if the string pointed to by DocId is empty
+	 */
+	
+	virtual bool EmptyText(DocId) const = 0;
+
         /**
          * Displaying content
          *