address comments, add doc

opendistro-for-elasticsearch · Feb 3, 2021 · 2b799f7 · 2b799f7
1 parent 6cf8234
commit 2b799f7
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/...main/java/com/amazon/opendistroforelasticsearch/sql/elasticsearch/data/utils/Content.java b/...main/java/com/amazon/opendistroforelasticsearch/sql/elasticsearch/data/utils/Content.java
@@ -21,7 +21,12 @@
 import org.apache.commons.lang3.tuple.Pair;
 
 /**
- * Content represent data.
+ * Regardless the underling data format, the {@link Content} define the data in abstract manner
+ * which could be parsed by ElasticsearchExprValueFactory.
+ *
+ * There are two major use cases:
+ * 1. Represent the JSON data retrieve from Elasticsearch search response.
+ * 2. Represent the Object data extract from the Elasticsearch aggregation response.
  */
 public interface Content {