add missing @Override annotation

modules/elasticsearch/src/main/java/org/elasticsearch/search/facet/datehistogram/DateHistogramFacetBuilder.java

@@ -129,7 +129,7 @@ public class DateHistogramFacetBuilder extends AbstractFacetBuilder {
      * Should the facet run in global mode (not bounded by the search query) or not (bounded by
      * the search query). Defaults to <tt>false</tt>.
      */
-    public DateHistogramFacetBuilder global(boolean global) {
+    @Override public DateHistogramFacetBuilder global(boolean global) {
         super.global(global);
         return this;
     }
@@ -145,7 +145,7 @@ public class DateHistogramFacetBuilder extends AbstractFacetBuilder {
     /**
      * An additional filter used to further filter down the set of documents the facet will run on.
      */
-    public DateHistogramFacetBuilder facetFilter(XContentFilterBuilder filter) {
+    @Override public DateHistogramFacetBuilder facetFilter(XContentFilterBuilder filter) {
         this.facetFilter = filter;
         return this;
     }

modules/elasticsearch/src/main/java/org/elasticsearch/search/sort/FieldSortBuilder.java

@@ -48,7 +48,7 @@ public class FieldSortBuilder extends SortBuilder {
     /**
      * The order of sorting. Defaults to {@link SortOrder#ASC}.
      */
-    public FieldSortBuilder order(SortOrder order) {
+    @Override public FieldSortBuilder order(SortOrder order) {
         this.order = order;
         return this;
     }
@@ -57,7 +57,7 @@ public class FieldSortBuilder extends SortBuilder {
      * Sets the value when a field is missing in a doc. Can also be set to <tt>_last</tt> or
      * <tt>_first</tt> to sort missing last or first respectively.
      */
-    public FieldSortBuilder missing(Object missing) {
+    @Override public FieldSortBuilder missing(Object missing) {
         this.missing = missing;
         return this;
     }

modules/elasticsearch/src/main/java/org/elasticsearch/search/sort/GeoDistanceSortBuilder.java

@@ -90,7 +90,7 @@ public class GeoDistanceSortBuilder extends SortBuilder {
     /**
      * The order of sorting. Defaults to {@link SortOrder#ASC}.
      */
-    public GeoDistanceSortBuilder order(SortOrder order) {
+    @Override public GeoDistanceSortBuilder order(SortOrder order) {
         this.order = order;
         return this;
     }

modules/elasticsearch/src/main/java/org/elasticsearch/search/sort/ScoreSortBuilder.java

@@ -35,7 +35,7 @@ public class ScoreSortBuilder extends SortBuilder {
     /**
      * The order of sort scoring. By default, its {@link SortOrder#DESC}.
      */
-    public ScoreSortBuilder order(SortOrder order) {
+    @Override public ScoreSortBuilder order(SortOrder order) {
         this.order = order;
         return this;
     }

modules/elasticsearch/src/main/java/org/elasticsearch/search/sort/ScriptSortBuilder.java

@@ -70,7 +70,7 @@ public class ScriptSortBuilder extends SortBuilder {
     /**
      * Sets the sort order.
      */
-    public ScriptSortBuilder order(SortOrder order) {
+    @Override public ScriptSortBuilder order(SortOrder order) {
         this.order = order;
         return this;
     }