Add HFresh index configuration

src/main/java/io/weaviate/client6/v1/api/collections/VectorIndex.java

@@ -15,6 +15,7 @@
 
 import io.weaviate.client6.v1.api.collections.vectorindex.Dynamic;
 import io.weaviate.client6.v1.api.collections.vectorindex.Flat;
+import io.weaviate.client6.v1.api.collections.vectorindex.HFresh;
 import io.weaviate.client6.v1.api.collections.vectorindex.Hnsw;
 import io.weaviate.client6.v1.internal.TaggedUnion;
 import io.weaviate.client6.v1.internal.json.JsonEnum;
@@ -26,7 +27,8 @@ public interface VectorIndex extends TaggedUnion<VectorIndex.Kind, Object> {
   enum Kind implements JsonEnum<Kind> {
     HNSW("hnsw"),
     FLAT("flat"),
-    DYNAMIC("dynamic");
+    DYNAMIC("dynamic"),
+    HFRESH("hfresh");
 
     private static final Map<String, Kind> jsonValueMap = JsonEnum.collectNames(Kind.values());
     private final String jsonValue;
@@ -75,6 +77,16 @@ default Dynamic asDynamic() {
     return _as(VectorIndex.Kind.DYNAMIC);
   }
 
+  /** Is this vector index of type HFRESH? */
+  default boolean isHFresh() {
+    return _is(VectorIndex.Kind.HFRESH);
+  }
+
+  /** Get as {@link HFresh} instance. */
+  default HFresh asHFresh() {
+    return _as(VectorIndex.Kind.HFRESH);
+  }
+
   static enum CustomTypeAdapterFactory implements TypeAdapterFactory {
     INSTANCE;
 
@@ -89,6 +101,7 @@ private final void init(Gson gson) {
       addAdapter(gson, VectorIndex.Kind.HNSW, Hnsw.class);
       addAdapter(gson, VectorIndex.Kind.FLAT, Flat.class);
       addAdapter(gson, VectorIndex.Kind.DYNAMIC, Dynamic.class);
+      addAdapter(gson, VectorIndex.Kind.HFRESH, HFresh.class);
     }
 
     @SuppressWarnings("unchecked")

src/main/java/io/weaviate/client6/v1/api/collections/vectorindex/HFresh.java

@@ -0,0 +1,73 @@
+package io.weaviate.client6.v1.api.collections.vectorindex;
+
+import java.util.function.Function;
+
+import com.google.gson.annotations.SerializedName;
+
+import io.weaviate.client6.v1.api.collections.VectorIndex;
+import io.weaviate.client6.v1.internal.ObjectBuilder;
+
+public record HFresh(
+    @SerializedName("distance") Distance distance,
+    @SerializedName("maxPostingSizeKB") Integer maxPostingSizeKb,
+    @SerializedName("replicas") Integer replicaCount,
+    @SerializedName("searchProbe") Integer searchProbe) implements VectorIndex {
+
+  @Override
+  public VectorIndex.Kind _kind() {
+    return VectorIndex.Kind.HFRESH;
+  }
+
+  @Override
+  public Object _self() {
+    return this;
+  }
+
+  public static HFresh of() {
+    return of(ObjectBuilder.identity());
+  }
+
+  public static HFresh of(Function<Builder, ObjectBuilder<HFresh>> fn) {
+    return fn.apply(new Builder()).build();
+  }
+
+  public HFresh(Builder builder) {
+    this(
+        builder.distance,
+        builder.maxPostingSizeKb,
+        builder.replicaCount,
+        builder.searchProbe);
+  }
+
+  public static class Builder implements ObjectBuilder<HFresh> {
+    private Distance distance;
+    private Integer maxPostingSizeKb;
+    private Integer replicaCount;
+    private Integer searchProbe;
+
+    public Builder distance(Distance distance) {
+      this.distance = distance;
+      return this;
+    }
+
+    public final Builder maxPostingSizeKb(int maxPostingSizeKb) {
+      this.maxPostingSizeKb = maxPostingSizeKb;
+      return this;
+    }
+
+    public final Builder replicaCount(int replicaCount) {
+      this.replicaCount = replicaCount;
+      return this;
+    }
+
+    public final Builder searchProbe(int searchProbe) {
+      this.searchProbe = searchProbe;
+      return this;
+    }
+
+    @Override
+    public HFresh build() {
+      return new HFresh(this);
+    }
+  }
+}