move per field dv code to dedicated package

Author: martijnvg

server/src/main/java/module-info.java

@@ -475,4 +475,5 @@
     exports org.elasticsearch.monitor.metrics;
     exports org.elasticsearch.plugins.internal.rewriter to org.elasticsearch.inference;
     exports org.elasticsearch.lucene.util.automaton;
+    exports org.elasticsearch.index.codec.perfield;
 }

server/src/main/java/org/elasticsearch/index/codec/Elasticsearch900Lucene101Codec.java

@@ -19,6 +19,7 @@
 import org.apache.lucene.codecs.lucene99.Lucene99HnswVectorsFormat;
 import org.apache.lucene.codecs.perfield.PerFieldKnnVectorsFormat;
 import org.apache.lucene.codecs.perfield.PerFieldPostingsFormat;
+import org.elasticsearch.index.codec.perfield.XPerFieldDocValuesFormat;
 import org.elasticsearch.index.codec.zstd.Zstd814StoredFieldsFormat;
 
 /**

server/src/main/java/org/elasticsearch/index/codec/XPerFieldDocValuesFormat.java renamed to server/src/main/java/org/elasticsearch/index/codec/perfield/XPerFieldDocValuesFormat.java

@@ -7,7 +7,7 @@
  * License v3.0 only", or the "Server Side Public License, v 1".
  */
 
-package org.elasticsearch.index.codec;
+package org.elasticsearch.index.codec.perfield;
 
 import org.apache.lucene.codecs.DocValuesConsumer;
 import org.apache.lucene.codecs.DocValuesFormat;

server/src/main/java/org/elasticsearch/index/codec/XPerFieldMergeState.java renamed to server/src/main/java/org/elasticsearch/index/codec/perfield/XPerFieldMergeState.java

@@ -7,7 +7,7 @@
  * License v3.0 only", or the "Server Side Public License, v 1".
  */
 
-package org.elasticsearch.index.codec;
+package org.elasticsearch.index.codec.perfield;
 
 import org.apache.lucene.codecs.FieldsProducer;
 import org.apache.lucene.index.DocValuesType;

server/src/main/java/org/elasticsearch/index/codec/tsdb/es819/DocValuesConsumerUtil.java

@@ -12,7 +12,7 @@
 import org.apache.lucene.codecs.DocValuesProducer;
 import org.apache.lucene.index.FieldInfo;
 import org.apache.lucene.index.MergeState;
-import org.elasticsearch.index.codec.XPerFieldDocValuesFormat;
+import org.elasticsearch.index.codec.perfield.XPerFieldDocValuesFormat;
 
 /**
  * Contains logic to determine whether optimized merge can occur.

server/src/test/java/org/elasticsearch/index/codec/tsdb/TsdbDocValueBwcTests.java

@@ -34,7 +34,7 @@
 import org.elasticsearch.core.SuppressForbidden;
 import org.elasticsearch.index.codec.Elasticsearch816Codec;
 import org.elasticsearch.index.codec.Elasticsearch900Lucene101Codec;
-import org.elasticsearch.index.codec.XPerFieldDocValuesFormat;
+import org.elasticsearch.index.codec.perfield.XPerFieldDocValuesFormat;
 import org.elasticsearch.index.codec.tsdb.ES87TSDBDocValuesFormatTests.TestES87TSDBDocValuesFormat;
 import org.elasticsearch.index.codec.tsdb.es819.ES819TSDBDocValuesFormat;
 import org.elasticsearch.test.ESTestCase;