minor: add private modifiers

SVN: 9753

openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/dto/DataSetSearchHit.java

@@ -25,7 +25,7 @@ import com.google.gwt.user.client.rpc.IsSerializable;
  */
 public final class DataSetSearchHit implements IsSerializable
 {
-    ExternalData dataSet;
+    private ExternalData dataSet;
 
     public DataSetSearchHit()
     {

openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/basic/dto/SearchCriteria.java

@@ -27,9 +27,9 @@ import com.google.gwt.user.client.rpc.IsSerializable;
  */
 public class SearchCriteria implements IsSerializable
 {
-    List<DataSetSearchCriterion> criteria;
+    private List<DataSetSearchCriterion> criteria;
 
-    CriteriaConnection connection;
+    private CriteriaConnection connection;
 
     public static enum CriteriaConnection// FIXME name
     {