defer schema.Relationships.Mux.Unlock()

	// set non-embedded relation
	if rel := schema.Relationships.Relations[relation.Name]; rel != nil {
		if len(rel.Field.BindNames) > 1 {
			schema.Relationships.Relations[relation.Name] = relation
		}
	} else {
		schema.Relationships.Relations[relation.Name] = relation
	}

	// set embedded relation
	if len(relation.Field.EmbeddedBindNames) <= 1 {
		return
	}

						} else {
							db.AddError(fmt.Errorf("relation %s not found", association))
							return nil
						}
					}
				} else {
					db.AddError(fmt.Errorf("relation %s not found", association))
					return nil
				}
			}

			if q.limitPerRecord > 0 {
				if relation.JoinTable != nil {
					tx.AddError(fmt.Errorf("many2many relation %s don't support LimitPerRecord", association))
					return tx

import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.lucene.search.TotalHits.Relation;
import org.codelibs.core.collection.ArrayUtil;
import org.codelibs.core.concurrent.CommonPoolUtil;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.stream.StreamUtil;
import org.codelibs.fess.Constants;

    @Override
    public String toStringWithRelation() { // #pending
        return toString();
    }

    @Override
    public String buildDisplayString(String name, boolean column, boolean relation) { // #pending
        return toString();
    }

    // ===================================================================================

            final SearchHits searchHits = searchResponse.getHits();
            builder.allRecordCount(searchHits.getTotalHits().value());
            builder.allRecordCountRelation(searchHits.getTotalHits().relation().toString());
            builder.queryTime(searchResponse.getTook().millis());

            if (searchResponse.getTotalShards() != searchResponse.getSuccessfulShards()) {
                builder.partialResults(true);

				} else if ev.Type().Elem().AssignableTo(elemType) {
					fieldValue = reflect.Append(fieldValue, ev.Elem())
				} else {
					association.Error = fmt.Errorf("unsupported data type: %v for relation %s", ev.Type(), association.Relationship.Name)
				}

				if elemType.Kind() == reflect.Struct {
					assignBacks = append(assignBacks, assignBack{Source: source, Dest: ev, Index: fieldValue.Len()})
				}
			}

     * This method first refreshes the index, then performs the deletion, and logs the result.
     *
     * @param searchEngineClient the search engine client to use for deletion
     * @param index the index name to delete documents from
     * @param queryBuilder the query to match documents for deletion
     * @return the number of documents that were deleted
     */

     */
    public boolean isUpdated() {
        return newInput != null;
    }

    /**
     * Checks if the item has been marked for deletion.
     *
     * @return true if the item is marked for deletion, false otherwise.
     */
    public boolean isDeleted() {
        return isUpdated() && newInput.length() == 0;
    }

    @Override
    public int hashCode() {

         *
         * <p>The deletion process:</p>
         * <ul>
         *   <li>Checks if old document deletion is enabled</li>
         *   <li>Builds a query to find old documents for this configuration</li>
         *   <li>Optionally preserves expired documents based on configuration</li>
         *   <li>Executes the deletion query against the search engine</li>
         * </ul>
         */

     */
    public boolean isUpdated() {
        return newInputs != null && newOutputs != null;
    }

    /**
     * Checks if the item has been marked for deletion.
     *
     * @return true if the item is marked for deletion, false otherwise.
     */
    public boolean isDeleted() {
        return isUpdated() && newInputs.length == 0;
    }

    @Override
    public int hashCode() {