feat: create result findby id

Signed-off-by: Otavio Santana <[email protected]>

core/src/main/java/expert/os/harperdb/Template.java

@@ -6,6 +6,7 @@
 import java.util.Objects;
 import java.util.Optional;
 import java.util.Set;
+import java.util.stream.Collectors;
 import java.util.stream.StreamSupport;
 
 public final class Template {
@@ -71,13 +72,22 @@ public <T> boolean upsert(Iterable<T> entities) {
  return server.execute(insert);
  }
 
- public <T> Optional<T> findById(Object id, Class<T> type) {
+ public <K, T> Optional<T> findById(K id, Class<T> type) {
  Objects.requireNonNull(id, "id is required");
  Objects.requireNonNull(type, "type is required");
  var search = new SearchById(database, table(type), Collections.singleton(id), ALL_ATTRIBUTES);
  return server.singleResult(search, type);
  }
 
+ public <T> List<T> findById(Iterable<Object> ids, Class<T> type) {
+ Objects.requireNonNull(ids, "ids is required");
+ Objects.requireNonNull(type, "type is required");
+ var keys = StreamSupport.stream(ids.spliterator(), false)
+ .collect(Collectors.toSet());
+ var search = new SearchById(database, table(type), keys, ALL_ATTRIBUTES);
+ return server.result(search, type);
+ }
+
  private <T> String table(T entity) {
  return table(entity.getClass());
  }