# This is a combination of 4 commits.tree 09bd3af420b9a9e07270415c9f8…

…4b7a43bf7af9c

parent 1920f00
author Alan Woodward <romseygeek@apache.org> 1626700953 +0100
committer Alan Woodward <romseygeek@apache.org> 1626700953 +0100

Make NestedObjectMapper its own class (elastic#74410)

Nested objects are implemented via a Nested class directly on object mappers,
even though nested and non-nested objects have quite different semantics. In
addition, most call-sites that need to get an object mapper in fact need a nested
object mapper. To make it clearer that nested and object mappers are different
beasts with different implementations and different requirements, we should
split them into different classes.

server:test compiles

:server:tests pass

# This is the commit message elastic#4:

fix merge includes

server/src/main/java/org/elasticsearch/index/mapper/NestedObjectMapper.java

@@ -43,11 +43,19 @@ Builder includeInRoot(boolean includeInRoot) {
             return this;
         }
 
+        void includeInRoot(Explicit<Boolean> includeInRoot) {
+            this.includeInRoot = includeInRoot;
+        }
+
         Builder includeInParent(boolean includeInParent) {
             this.includeInParent = new Explicit<>(includeInParent, true);
             return this;
         }
 
+        void includeInParent(Explicit<Boolean> includeInParent) {
+            this.includeInParent = includeInParent;
+        }
+
         @Override
         public NestedObjectMapper build(ContentPath contentPath) {
             return new NestedObjectMapper(name, contentPath.pathAsText(name), buildMappers(contentPath), this);
@@ -94,6 +102,7 @@ protected static void parseNested(String name, Map<String, Object> node, NestedO
     private Explicit<Boolean> includeInParent;
     private final String nestedTypePath;
     private final Query nestedTypeFilter;
+    private final Version indexCreatedVersion;
 
     NestedObjectMapper(
         String name,
@@ -110,6 +119,7 @@ protected static void parseNested(String name, Map<String, Object> node, NestedO
         this.nestedTypeFilter = NestedPathFieldMapper.filter(builder.indexCreatedVersion, nestedTypePath);
         this.includeInParent = builder.includeInParent;
         this.includeInRoot = builder.includeInRoot;
+        this.indexCreatedVersion = builder.indexCreatedVersion;
     }
 
     public Query nestedTypeFilter() {
@@ -184,9 +194,11 @@ public ObjectMapper merge(Mapper mergeWith, MapperService.MergeReason reason) {
             if (includeInParent.value() != mergeWithObject.includeInParent.value()) {
                 throw new MapperException("the [include_in_parent] parameter can't be updated on a nested object mapping");
             }
+            builder.includeInParent(includeInParent);
             if (includeInRoot.value() != mergeWithObject.includeInRoot.value()) {
                 throw new MapperException("the [include_in_root] parameter can't be updated on a nested object mapping");
             }
+            builder.includeInRoot(includeInRoot);
         }
         toMerge.doMerge(mergeWithObject, reason);
         return toMerge;