* <p>Cache statistics are incremented according to the following rules:
 *
 * <ul>
 *   <li>When a cache lookup encounters an existing cache entry {@code hitCount} is incremented.
 *   <li>When a cache lookup first encounters a missing cache entry, a new entry is loaded.
 *       <ul>
 *         <li>After successfully loading an entry {@code missCount} and {@code loadSuccessCount}

		schema.err = fmt.Errorf("invalid polymorphic type %v for %v on field %s, missing field %s",
			relation.FieldSchema, schema, field.Name, polymorphic+"Type")
	}

	if relation.Polymorphic.PolymorphicID == nil {
		schema.err = fmt.Errorf("invalid polymorphic type %v for %v on field %s, missing field %s",
			relation.FieldSchema, schema, field.Name, polymorphic+"ID")
	}

	if schema.err == nil {

        }
        final FunctionScoreQueryBuilder functionScoreQueryBuilder = QueryBuilders.functionScoreQuery(queryBuilder,
                ScoreFunctionBuilders.fieldValueFactorFunction(FieldNames.QUERY_FREQ).missing(0));
        functionScoreQueryBuilder.boostMode(CombineFunction.REPLACE);
        return functionScoreQueryBuilder;
    }

    /**
     * Builds the OpenSearch rescorer for popular words.

import org.opensearch.search.aggregations.bucket.global.GlobalAggregationBuilder;
import org.opensearch.search.aggregations.bucket.histogram.DateHistogramAggregationBuilder;
import org.opensearch.search.aggregations.bucket.missing.MissingAggregationBuilder;
import org.opensearch.search.aggregations.bucket.range.DateRangeAggregationBuilder;
import org.opensearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;

此處查詢參數 `needy` 是必填的 `str`。

如果你在瀏覽器中開啟如下的 URL：

```
http://127.0.0.1:8000/items/foo-item
```

...沒有加上必填的 `needy` 參數，你會看到類似這樣的錯誤：

```JSON
{
  "detail": [
    {
      "type": "missing",
      "loc": [
        "query",
        "needy"
      ],
      "msg": "Field required",
      "input": null
    }
  ]
}
```

由於 `needy` 是必填參數，你需要在 URL 中設定它：

```

	// Check if bucket exists.
	if _, err := objAPI.GetBucketInfo(ctx, bucket, BucketOptions{}); err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	// Error out if Content-Length is missing.
	// PutBucketPolicy always needs Content-Length.
	if r.ContentLength <= 0 {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrMissingContentLength), r.URL)
		return
	}

		if !isValidURLEndpoint(u) {
			return ep, fmt.Errorf("invalid URL endpoint format")
		}

		var port string
		host, port, err = net.SplitHostPort(u.Host)
		if err != nil {
			if !strings.Contains(err.Error(), "missing port in address") {
				return ep, fmt.Errorf("invalid URL endpoint format: %w", err)
			}

			host = u.Host
		} else {
			var p int
			p, err = strconv.Atoi(port)
			if err != nil {

		writeErrorResponse(ctx, w, apiErr, r.URL)
		return
	}

	if keyName, ok := formValues["Key"]; !ok {
		apiErr := errorCodes.ToAPIErr(ErrMalformedPOSTRequest)
		apiErr.Description = fmt.Sprintf("%s (%v)", apiErr.Description, errors.New("The name of the uploaded key is missing"))
		writeErrorResponse(ctx, w, apiErr, r.URL)
		return

   * also be non-null.
   *
   * <p>If either or both endpoints are not already present in this graph, this method will silently
   * {@link #addNode(Object) add} each missing endpoint to the graph.
   *
   * <p>If {@code edge} already connects an endpoint pair equal to {@code endpoints}, then this
   * method will have no effect.
   *

    }
    ATOMIC_HELPER = helper;
    // Log after all static init is finished; if an installed logger uses any Futures methods, it
    // shouldn't break in cases where reflection is missing/broken.
    if (thrownReflectionFailure != null) {
      log.get().log(Level.SEVERE, "SafeAtomicHelper is broken!", thrownReflectionFailure);
    }
  }

  AggregateFutureState(int remainingFutures) {