18     public function __construct(?string $field = null, $values = null)  argument
20         if (null !== $field && null !== $values) {
21             $this->setParam($field, $values);
32     public function setField(string $field, $values): self  argument
34         return $this->setParam($field, $values);
44     public function setFieldParam(string $field, string $key, $value): self  argument
46         if (!isset($this->_params[$field])) {
47             $this->_params[$field] = [];
50         $this->_params[$field][$key] = $value;
60     public function setFieldQuery(string $field, string $query): self  argument
62         return $this->setFieldParam($field, 'query', $query);
70     public function setFieldAnalyzer(string $field, string $analyzer): self  argument
72         return $this->setFieldParam($field, 'analyzer', $analyzer);
82     public function setFieldBoost(string $field, float $boost = 1.0): self  argument
84         return $this->setFieldParam($field, 'boost', $boost);