[DE-379] Arangosearch updates for 3.10

src/main/java/com/arangodb/ArangoCollection.java

@@ -498,6 +498,16 @@ <T> MultiDocumentEntity<DocumentDeleteEntity<T>> deleteDocuments(
      */
     IndexEntity ensurePersistentIndex(Iterable<String> fields, PersistentIndexOptions options) throws ArangoDBException;
 
+    /**
+     * Creates an inverted index for the collection, if it does not already exist.
+     *
+     * @param options index creation options
+     * @return information about the index
+     * @throws ArangoDBException
+     * @see <a href="https://www.arangodb.com/docs/stable/http/indexes-inverted.html">API Documentation</a>
+     */
+    Object ensureInvertedIndex(InvertedIndexOptions options) throws ArangoDBException;
+
     /**
      * Creates a geo-spatial index for the collection, if it does not already exist.
      *
@@ -519,7 +529,7 @@ <T> MultiDocumentEntity<DocumentDeleteEntity<T>> deleteDocuments(
      * @throws ArangoDBException
      * @see <a href="https://www.arangodb.com/docs/stable/http/indexes-fulltext.html#create-fulltext-index">API
      * Documentation</a>
-     * @deprecated since ArangoDB 3.10, use ArangoSearch view instead.
+     * @deprecated since ArangoDB 3.10, use ArangoSearch or Inverted indexes instead.
      */
     @Deprecated
     IndexEntity ensureFulltextIndex(Iterable<String> fields, FulltextIndexOptions options) throws ArangoDBException;

src/main/java/com/arangodb/async/ArangoCollectionAsync.java

@@ -487,7 +487,7 @@ CompletableFuture<IndexEntity> ensurePersistentIndex(
      * @return information about the index
      * @see <a href="https://www.arangodb.com/docs/stable/http/indexes-fulltext.html#create-fulltext-index">API
      * Documentation</a>
-     * @deprecated since ArangoDB 3.10, use ArangoSearch view instead.
+     * @deprecated since ArangoDB 3.10, use ArangoSearch or Inverted indexes instead.
      */
     @Deprecated
     CompletableFuture<IndexEntity> ensureFulltextIndex(

src/main/java/com/arangodb/entity/IndexType.java

@@ -41,7 +41,7 @@ public enum IndexType {
     geo2,
 
     /**
-     * @deprecated since ArangoDB 3.10, use ArangoSearch view instead.
+     * @deprecated since ArangoDB 3.10, use ArangoSearch or Inverted indexes instead.
      */
     @Deprecated
     fulltext,
@@ -50,5 +50,10 @@ public enum IndexType {
 
     ttl,
 
-    zkd
+    zkd,
+
+    /**
+     * @since ArangoDB 3.10
+     */
+    inverted
 }

src/main/java/com/arangodb/entity/arangosearch/AnalyzerFeature.java

@@ -37,8 +37,14 @@ public enum AnalyzerFeature {
     norm,
 
     /**
-     * sequentially increasing term position, required for PHRASE(). If present then the frequency feature is also required
+     * sequentially increasing term position, required for PHRASE(). If present then the frequency feature is also required.
      */
-    position
+    position,
+
+    /**
+     * enable search highlighting capabilities (Enterprise Edition only). If present, then the `position` and `frequency` features are also required.
+     * @since ArangoDB 3.10
+     */
+    offset
 
 }

src/main/java/com/arangodb/internal/ArangoCollectionImpl.java

@@ -279,6 +279,11 @@ public IndexEntity ensurePersistentIndex(final Iterable<String> fields, final Pe
         return executor.execute(createPersistentIndexRequest(fields, options), IndexEntity.class);
     }
 
+    @Override
+    public Object ensureInvertedIndex(final InvertedIndexOptions options) throws ArangoDBException {
+        return executor.execute(createInvertedIndexRequest(options), Object.class);
+    }
+
     @Override
     public IndexEntity ensureGeoIndex(final Iterable<String> fields, final GeoIndexOptions options)
             throws ArangoDBException {

src/main/java/com/arangodb/internal/InternalArangoCollection.java

@@ -576,6 +576,13 @@ protected Request createPersistentIndexRequest(
         return request;
     }
 
+    protected Request createInvertedIndexRequest(final InvertedIndexOptions options) {
+        final Request request = request(db.dbName(), RequestType.POST, PATH_API_INDEX);
+        request.putQueryParam(COLLECTION, name);
+        request.setBody(util().serialize(options));
+        return request;
+    }
+
     protected Request createGeoIndexRequest(final Iterable<String> fields, final GeoIndexOptions options) {
         final Request request = request(db.dbName(), RequestType.POST, PATH_API_INDEX);
         request.putQueryParam(COLLECTION, name);

src/main/java/com/arangodb/model/FulltextIndexOptions.java

@@ -26,7 +26,7 @@
  * @author Mark Vollmary
  * @see <a href="https://www.arangodb.com/docs/stable/http/indexes-fulltext.html#create-fulltext-index">API
  * Documentation</a>
- * @deprecated since ArangoDB 3.10, use ArangoSearch view instead.
+ * @deprecated since ArangoDB 3.10, use ArangoSearch or Inverted indexes instead.
  */
 @Deprecated
 public class FulltextIndexOptions extends IndexOptions<FulltextIndexOptions> {