abstract class DependencyAdditionRule @Inject constructor(
    private val coordinates: String
) : ComponentMetadataRule {
    override fun execute(context: ComponentMetadataContext) {
        context.details.allVariants {
            withDependencies {
                add(coordinates)
            }
        }
    }
}


abstract class DependencyRemovalByGroupRule @Inject constructor(

import org.gradle.jvm.toolchain.JavaLanguageVersion;
import org.gradle.jvm.toolchain.JavaToolchainService;

import javax.inject.Inject;
import java.util.Collections;

public abstract class GradleBuildDocumentationPlugin implements Plugin<Project> {

    @Inject
    protected abstract ProviderFactory getProviders();

    @Override
    public void apply(Project project) {

import org.gradle.api.provider.ProviderFactory
import org.gradle.api.services.BuildService
import org.gradle.api.services.BuildServiceParameters
import org.gradle.internal.os.OperatingSystem
import javax.inject.Inject


abstract class BuildEnvironmentService : BuildService<BuildEnvironmentService.Parameters> {

    interface Parameters : BuildServiceParameters {
        val rootProjectDir: DirectoryProperty

Ardından bu sistem (bu örnekte **FastAPI**), kodunuza gerekli bağımlılıkları sağlamak ("inject" etmek) için gereken her şeyi sizin yerinize halleder.

Bu yaklaşım, şunlara ihtiyaç duyduğunuzda özellikle faydalıdır:

* Paylaşılan bir mantığa sahip olmak (aynı kod mantığını tekrar tekrar kullanmak).

        ComponentUtil.register(permissionHelper, "permissionHelper");

        inject(systemHelper);
        inject(virtualHostHelper);
        inject(keyMatchHelper);
        inject(roleQueryHelper);
        inject(permissionHelper);
        inject(queryHelper);
        queryFieldConfig = new QueryFieldConfig();
        ComponentUtil.register(queryFieldConfig, "queryFieldConfig");

import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.function.Predicate;
import java.util.stream.Collectors;

import org.apache.maven.api.Constants;
import org.apache.maven.api.di.Inject;
import org.apache.maven.api.di.Named;
import org.apache.maven.api.di.Singleton;
import org.apache.maven.api.feature.Features;
import org.apache.maven.api.services.TypeRegistry;
import org.apache.maven.api.xml.XmlNode;

- `@Execute` marks web endpoints
- `@Resource` for DI
- `@Secured({ "role", "role-view" })` for authorization
- Return `HtmlResponse` for JSP, `JsonResponse` for APIs

### Service
- Inject behaviors (Bhv) for data access
- Use `OptionalEntity<T>` for nullable returns
- Plain classes (no extends/implements)

### Helper
- Stateless utility classes
- Access via `ComponentUtil.getXyzHelper()`

    }

    private ApiAdminSchedulerAction createActionWithMockService(final ScheduledJob scheduledJob) throws Exception {
        final ApiAdminSchedulerAction action = new ApiAdminSchedulerAction();

        // Inject mock ScheduledJobService via reflection
        final ScheduledJobService mockService = new ScheduledJobService() {
            @Override
            public OptionalEntity<ScheduledJob> getScheduledJob(final String id) {

Das System (in diesem Fall **FastAPI**) kümmert sich dann darum, Ihren Code mit den erforderlichen Abhängigkeiten zu versorgen („die Abhängigkeiten einfügen“ – „inject the dependencies“).

Das ist sehr nützlich, wenn Sie:

* Eine gemeinsame Logik haben (die gleiche Code-Logik immer und immer wieder).
* Datenbankverbindungen teilen.

            this.recordedReadTimeout = timeout;
            super.setReadTimeout(timeout);
        }
    }

    /**
     * CurlRequest subclass that overrides only open(URL) to inject a mock connection.
     * This ensures the real connect() code path is exercised (timeout, headers, onConnect, etc.).
     */
    class OpenOverrideCurlRequest extends CurlRequest {