Add rankWindowSize method to base class

Author: ioanatia

server/src/main/java/org/elasticsearch/search/retriever/CompoundRetrieverBuilder.java

@@ -287,6 +287,10 @@ public int doHashCode() {
         return Objects.hash(innerRetrievers);
     }
 
+    public int rankWindowSize() {
+        return rankWindowSize;
+    }
+
     protected final SearchSourceBuilder createSearchSourceBuilder(PointInTimeBuilder pit, RetrieverBuilder retrieverBuilder) {
         var sourceBuilder = new SearchSourceBuilder().pointInTimeBuilder(pit)
             .trackTotalHits(false)

x-pack/plugin/ent-search/src/main/java/org/elasticsearch/xpack/application/rules/retriever/QueryRuleRetrieverBuilder.java

@@ -119,10 +119,6 @@ public String getName() {
         return NAME;
     }
 
-    public int rankWindowSize() {
-        return rankWindowSize;
-    }
-
     @Override
     protected SearchSourceBuilder finalizeSourceBuilder(SearchSourceBuilder source) {
         checkValidSort(source.sorts());

x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/rank/textsimilarity/TextSimilarityRankRetrieverBuilder.java

@@ -193,10 +193,6 @@ public String inferenceId() {
         return inferenceId;
     }
 
-    public int rankWindowSize() {
-        return rankWindowSize;
-    }
-
     public boolean failuresAllowed() {
         return failuresAllowed;
     }

x-pack/plugin/search-business-rules/src/main/java/org/elasticsearch/xpack/searchbusinessrules/retriever/PinnedRetrieverBuilder.java

@@ -151,10 +151,6 @@ public String getName() {
         return NAME;
     }
 
-    public int rankWindowSize() {
-        return rankWindowSize;
-    }
-
     /**
      * Creates a PinnedQueryBuilder with the appropriate pinned documents.
      *