Implement GridSortOrder and SortOrderBuilders (#8338)

1 files changed, 17 insertions, 0 deletions

diff --git a/server/src/main/java/com/vaadin/data/provider/BackEndDataProvider.java b/server/src/main/java/com/vaadin/data/provider/BackEndDataProvider.java
index b50b5c7fc8..13694010c7 100644
--- a/server/src/main/java/com/vaadin/data/provider/BackEndDataProvider.java
+++ b/server/src/main/java/com/vaadin/data/provider/BackEndDataProvider.java
@@ -17,6 +17,7 @@ package com.vaadin.data.provider;
 
 import java.util.Collections;
 import java.util.List;
+import java.util.Objects;
 
 /**
  * A data provider that lazy loads items from a back end.
@@ -45,6 +46,22 @@ public interface BackEndDataProvider<T, F> extends DataProvider<T, F> {
     void setSortOrders(List<QuerySortOrder> sortOrders);
 
     /**
+     * Sets the sort order to use, given a {@link QuerySortOrderBuilder}.
+     * Shorthand for {@code setSortOrders(builder.build())}.
+     * 
+     * @see QuerySortOrderBuilder
+     * 
+     * @param builder
+     *            the sort builder to retrieve the sort order from
+     * @throws NullPointerException
+     *             if builder is null
+     */
+    default void setSortOrders(QuerySortOrderBuilder builder) {
+        Objects.requireNonNull("Sort builder cannot be null.");
+        setSortOrders(builder.build());
+    }
+
+    /**
      * Sets a single sort order to use as the default sorting for this data
      * provider. This overrides the sorting set by any other method that
      * manipulates the default sorting of this data provider.