* allowing for URL-based client selection. Clients can be added with specific patterns
 * and optionally at specific positions in the processing order.</p>
 *
 * <p>This factory is typically initialized through dependency injection and can be
 * configured with initialization parameters that are passed to all registered clients.</p>
 *
 * <p>Features:</p>
 * <ul>
 *   <li>Pattern-based client mapping</li>
 *   <li>Ordered client registration</li>

    return {"fresh_value": fresh_value}
```

////

## Zusammenfassung { #recap }

Abgesehen von all den ausgefallenen Wörtern, die hier verwendet werden, ist das **Dependency Injection**-System recht simpel.

Einfach Funktionen, die genauso aussehen wie *Pfadoperation-Funktionen*.

Dennoch ist es sehr mächtig und ermöglicht Ihnen die Deklaration beliebig tief verschachtelter Abhängigkeits-„Graphen“ (Bäume).

     *
     * @return the effective model of the parent POM, never {@code null}
     */
    @Nonnull
    Model getParentModel();

    /**
     * Gets the assembled model with inheritance, interpolation and profile injection.
     *
     * @return The assembled model, never {@code null}.
     */
    @Nonnull
    Model getEffectiveModel();

    /**
     * Gets the profiles that were active during model building.
     *

		return true
	default:
		return false
	}
}

// ExplainSQL generate SQL string with given parameters, the generated SQL is expected to be used in logger, execute it might introduce a SQL injection vulnerability
func ExplainSQL(sql string, numericPlaceholder *regexp.Regexp, escaper string, avars ...interface{}) string {
	var (
		convertParams func(interface{}, int)
		vars          = make([]string, len(avars))
	)

    /**
     * Fess configuration settings.
     */
    @Resource
    protected FessConfig fessConfig;

    /**
     * Default constructor for RequestHeaderService.
     * Initializes the service with dependency injection.
     */
    public RequestHeaderService() {
        // Default constructor
    }

    /**
     * Retrieves a paginated list of request headers based on the provided pager criteria.
     *

     */
    public FacetInfo() {
        // Default constructor
    }

    /**
     * Initializes the facet configuration from Fess configuration properties.
     * This method is called after dependency injection to load default facet settings.
     */
    @PostConstruct
    public void init() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        if (StringUtil.isNotBlank(fessConfig.getQueryFacetFields())) {

        }

        public WitnessNotification getLastNotification() {
            return lastNotification;
        }
    }

    /**
     * Test witness client that allows injection of mock RPC client
     */
    private static class TestWitnessClient extends WitnessClient {

        public TestWitnessClient(InetAddress witnessServer, CIFSContext context, WitnessRpcClient rpcClient) {

    private final MessageBuilderFactory messageBuilderFactory;

    /**
     * Default ctor is used in IT and most probably some 3rd party code. For those cases, we do provide sane defaults
     * but given this is a component, injection should be used, replacing direct instantiation.
     *
     * @deprecated Do not use this ctor directly, inject this component instead.
     */
    @Deprecated
    public DefaultMojoExecutionConfigurator() {

     it is just a consequence of the order obtained during {{{../maven-model-builder/}effective model building}},
     which combines profile activation+injection and inheritance assembly from parents,

   * known limitations are notably that:

# Classes as Dependencies { #classes-as-dependencies }

Before diving deeper into the **Dependency Injection** system, let's upgrade the previous example.

## A `dict` from the previous example { #a-dict-from-the-previous-example }

In the previous example, we were returning a `dict` from our dependency ("dependable"):

{* ../../docs_src/dependencies/tutorial001_an_py310.py hl[9] *}