// Search Engine Type Constants
    // ============================================================

    /** Cloud-based search engine type. */
    public static final String FESEN_TYPE_CLOUD = "cloud";

    /** AWS-based search engine type. */
    public static final String FESEN_TYPE_AWS = "aws";

    /** Search engine username configuration key. */

      },
      "scriptResult": {
        "type": "keyword"
      },
      "lastUpdated": {
        "type": "long"
      },
      "startTime": {
        "type": "long"
      },
      "endTime": {
        "type": "long"
      }
    }

{
  "fess_config.job_log" : {
    "aliases" : { },
    "mappings" : {
      "job_log" : {
        "properties" : {
          "endTime" : {
            "type" : "long"
          },
          "jobName" : {
            "type" : "keyword"
          },
          "jobStatus" : {
            "type" : "keyword"
          },
          "lastUpdated" : {
            "type" : "long"
          },
          "scriptData" : {

  testImplementation(projects.okhttpTestingSupport)
  testImplementation(rootProject.libs.conscrypt.openjdk)
  testImplementation(rootProject.libs.junit.jupiter.engine)
  testImplementation(rootProject.libs.junit.vintage.engine)

  androidTestImplementation(projects.okhttpTestingSupport) {
    exclude("org.openjsse", "openjsse")
    exclude("org.conscrypt", "conscrypt-openjdk-uber")

    /** The expression used to match documents for boosting */
    private String matchExpression;

    /** The script engine type used for expression evaluation */
    private final String scriptType;

    /**
     * Default constructor that creates a DocBoostMatcher with default script type.
     * Uses the default script engine as defined in Constants.DEFAULT_SCRIPT.
     */
    public DocBoostMatcher() {

    }

    /**
     * Sets the name of the search engine cluster.
     *
     * @param clusterName the cluster name
     */
    public void setClusterName(final String clusterName) {
        this.clusterName = clusterName;
    }

    /**
     * Gets information about the search engine.
     *
     * @return the engine information

		case "startTs":
			z.StartTime, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "StartTime")
				return
			}
		case "stopTs":
			z.EndTime, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "EndTime")
				return
			}
		case "status":
			{
				var zb0002 uint8
				zb0002, err = dc.ReadUint8()
				if err != nil {
					err = msgp.WrapError(err, "Status")

	defer periodicTimer.Stop()

	for {
		select {
		case <-periodicTimer.C:
			now := UTCNow()
			ahs.Lock()
			for path, h := range ahs.healSeqMap {
				if h.hasEnded() && h.endTime.Add(keepHealSeqStateDuration).Before(now) {
					delete(ahs.healSeqMap, path)
				}
			}
			ahs.Unlock()

			periodicTimer.Reset(time.Minute * 5)
		case <-ctx.Done():

    // ===================================================================================
    // Attribute
    // =========

    /** Client for interacting with the search engine. */
    @Resource
    protected SearchEngineClient searchEngineClient;

    /** Helper for building and parsing search queries. */
    @Resource
    protected QueryHelper queryHelper;

### Создание соединения с базой данных (Engine)

В SQLModel объект соединения `engine` (по сути это `Engine` из SQLAlchemy) **содержит пул соединений** к базе данных.

Для обеспечения всех подключений приложения к одной базе данных нужен только один объект соединения `engine`.

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[14:18] hl[14:15,17:18] *}