improvements from review

Author: Max Hniebergall

docs/changelog/116962.yaml

@@ -1,5 +1,5 @@
 pr: 116962
-summary: "[Inference API] Add special case for elastic reranker in inference API"
+summary: "Add special case for elastic reranker in inference API"
 area: Machine Learning
 type: enhancement
 issues: []

x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/InferenceNamedWriteablesProvider.java

@@ -63,6 +63,7 @@
 import org.elasticsearch.xpack.inference.services.elasticsearch.CustomElandInternalServiceSettings;
 import org.elasticsearch.xpack.inference.services.elasticsearch.CustomElandInternalTextEmbeddingServiceSettings;
 import org.elasticsearch.xpack.inference.services.elasticsearch.CustomElandRerankTaskSettings;
+import org.elasticsearch.xpack.inference.services.elasticsearch.ElasticRerankerServiceSettings;
 import org.elasticsearch.xpack.inference.services.elasticsearch.ElasticsearchInternalServiceSettings;
 import org.elasticsearch.xpack.inference.services.elasticsearch.ElserInternalServiceSettings;
 import org.elasticsearch.xpack.inference.services.elasticsearch.ElserMlNodeTaskSettings;
@@ -415,6 +416,13 @@ private static void addInternalNamedWriteables(List<NamedWriteableRegistry.Entry
                 MultilingualE5SmallInternalServiceSettings::new
             )
         );
+        namedWriteables.add(
+            new NamedWriteableRegistry.Entry(
+                ServiceSettings.class,
+                ElasticRerankerServiceSettings.NAME,
+                ElasticRerankerServiceSettings::new
+            )
+        )
 
     }
 

x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/elasticsearch/ElasticRerankerServiceSettings.java

@@ -36,7 +36,7 @@ public ElasticRerankerServiceSettings(StreamInput in) throws IOException {
     }
 
     /**
-     * Parse the MultilingualE5SmallServiceSettings from map and validate the setting values.
+     * Parse the ElasticRerankerServiceSettings from map and validate the setting values.
      *
      * If required setting are missing or the values are invalid an
      * {@link ValidationException} is thrown.