Uses of Annotation Interface
io.helidon.service.registry.Service.Contract

Packages that use Service.Contract

Package	Description
io.helidon.common.concurrency.limits	Concurrency limits API and default implementations.
io.helidon.common.concurrency.limits.spi	Extension points to create custom concurrency rate limits.
io.helidon.common.tls	TLS Configuration for client and server.
io.helidon.config	Provides interfaces and classes for loading and working with immutable, tree-structured configuration data.
io.helidon.config.spi	Configuration SPI that defines the behavior developers can implement to extend the config system.
io.helidon.data.jakarta.persistence	Helidon Data Repository with Jakarta Persistence Runtime.
io.helidon.data.jakarta.persistence.spi	Service provider interface for repository with Jakarta Persistence Runtime.
io.helidon.data.jdbc	Runs imperative applications and declarative Helidon Data repositories with JDBC.
io.helidon.graphql	Shared GraphQL API types for Helidon client and server integrations.
io.helidon.graphql.spi	GraphQL service provider interfaces.
io.helidon.http	HTTP APIs and implementations usable by both server and client side of the HTTP story.
io.helidon.json.schema.spi	JSON Schema SPI.
io.helidon.messaging	Helidon Messaging API and runtime.
io.helidon.messaging.spi	Service provider interfaces implemented or extended by messaging transport connectors.
io.helidon.metrics.api	Defines the Helidon metrics API so Helidon metrics-capable components can implement metrics simply and without regard for whether metrics is actually on the runtime path or not or is enabled or not.
io.helidon.metrics.spi	SPI for Helidon metrics.
io.helidon.openapi.spi	OpenAPI SPI.
io.helidon.scheduling	Scheduling for Helidon SE reactive implementation.
io.helidon.service.registry	API required to define services, and to compile the code generated sources for Helidon Service Registry, with a core service registry implementation (replacement for ServiceLoader).
io.helidon.telemetry.opentelemetry.spi	Service provider interfaces for shared OpenTelemetry handling.
io.helidon.validation	Validation API.
io.helidon.validation.spi	Validation SPI.
io.helidon.webclient.api	Helidon WebClient APIs shared by all types of clients.
io.helidon.webclient.websocket	Helidon WebClient WebSocket Support.
io.helidon.webserver.cors	CORS support for Helidon WebServer.
io.helidon.webserver.grpc	Helidon WebServer gRPC Support.
io.helidon.webserver.http	Helidon WebServer HTTP specific APIs.
io.helidon.webserver.observe.metrics.spi	SPIs for the metrics observer component.
io.helidon.webserver.observe.tracing.spi	SPIs related to tracing observers.
io.helidon.webserver.security	Helidon WebServer Security Support.
io.helidon.webserver.websocket	WebSocket server support.

Uses of Service.Contract in io.helidon.common.concurrency.limits

Classes in io.helidon.common.concurrency.limits with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	Limit	Contract for a concurrency limiter.

Uses of Service.Contract in io.helidon.common.concurrency.limits.spi

Classes in io.helidon.common.concurrency.limits.spi with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	LimitProvider	A ServiceLoader (and service registry) service provider to discover rate limits.

Uses of Service.Contract in io.helidon.common.tls

Classes in io.helidon.common.tls with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	TlsManager	Implementors of this contract are responsible for initializing a single SSLContext identity and managing the TlsReloadableComponent instances that provide its key and trust material.

Uses of Service.Contract in io.helidon.config

Classes in io.helidon.config with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	Config	Configuration

Uses of Service.Contract in io.helidon.config.spi

Classes in io.helidon.config.spi with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	ConfigFilter	Filter that can transform elementary configuration (String) values before they are returned via the Config API.
interface	ConfigMapperProvider	Provides mapping functions that convert a Config subtree to specific Java types.
interface	ConfigParser	Transforms config ConfigParser.Content into a ConfigNode.ObjectNode that represents the original structure and values from the content.
interface	ConfigSource	Source of configuration.

Uses of Service.Contract in io.helidon.data.jakarta.persistence

Classes in io.helidon.data.jakarta.persistence with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	JpaRepositoryExecutor	Jakarta Persistence specific repository tasks executor.

Uses of Service.Contract in io.helidon.data.jakarta.persistence.spi

Classes in io.helidon.data.jakarta.persistence.spi with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	JpaEntityProvider<T>	Persistence entity provider contract.

Uses of Service.Contract in io.helidon.data.jdbc

Classes in io.helidon.data.jdbc with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	JdbcClient	Executes JDBC statements for applications and generated repositories.
static interface	JdbcClient.RowMapper<T>	Maps one JDBC row to an application value during a callback.

Uses of Service.Contract in io.helidon.graphql

Classes in io.helidon.graphql with annotations of type Service.Contract

Modifier and Type	Interface	Description
static interface	GeneratedGraphQl.CustomScalar	Service Registry contract for GraphQL custom scalar mappings.

Uses of Service.Contract in io.helidon.graphql.spi

Classes in io.helidon.graphql.spi with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	GraphQlScalar<T>	Service Registry contract for declarative GraphQL custom scalar coercion.

Uses of Service.Contract in io.helidon.http

Classes in io.helidon.http with annotations of type Service.Contract

Modifier and Type	Interface	Description
static interface	Http.HeaderFunction	Header producer, to use with rest client and rest server annotations.

Uses of Service.Contract in io.helidon.json.schema.spi

Classes in io.helidon.json.schema.spi with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	JsonSchemaProvider	Json schema provider related to the specific class.

Uses of Service.Contract in io.helidon.messaging

Classes in io.helidon.messaging with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	ConsumerRegistration	Generated consumer registration contract.
interface	Emitter<T>	Synchronous emitter for a named messaging channel.
interface	EmitterRegistration	Generated topology metadata for an injected messaging emitter.
static interface	MessagingEntryPoint.EntryPoints	Factory used by generated code to wrap messaging handlers with entry-point interceptors.
interface	MessagingRuntime	Internal synchronous runtime contract used by generated messaging emitters.
interface	ProcessorRegistration	Generated registration for a synchronous one-to-one message processor.

Uses of Service.Contract in io.helidon.messaging.spi

Classes in io.helidon.messaging.spi with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	MessagingConnectorProvider	Provider of configured messaging connectors.

Uses of Service.Contract in io.helidon.metrics.api

Classes in io.helidon.metrics.api with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	MetricsPublisher	Behavior common to all metrics publishers.

Uses of Service.Contract in io.helidon.metrics.spi

Classes in io.helidon.metrics.spi with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	MetricsPublisherProvider	Marks each configured provider of a MetricsPublisher.

Uses of Service.Contract in io.helidon.openapi.spi

Classes in io.helidon.openapi.spi with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	OpenApiDocumentSource	Source of generated OpenAPI document metadata.
interface	OpenApiVersion	OpenAPI version implementation.

Uses of Service.Contract in io.helidon.scheduling

Classes in io.helidon.scheduling with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	TaskManager	Manager of scheduled tasks.

Uses of Service.Contract in io.helidon.service.registry

Classes in io.helidon.service.registry with annotations of type Service.Contract

Modifier and Type	Interface	Description
static interface	Event.Emitter<T>	To publish an event, simply inject an instance of this type (correctly typed with your event object) into your service, and call Event.Emitter.emit(Object, Qualifier...) on it when needed.
interface	EventManager	Event manager is used by generated code to manage events and listeners.
static interface	GeneratedService.EventObserverRegistration	For event observers an observer registration is generated, so it can be picked-up by the EventManager implementation at runtime.
static interface	Interception.EntryPointInterceptor	Interceptor around initial entry into the Helidon system.
static interface	Interception.Interceptor	Implementors of this contract must be Service.Named according to the Interception.Intercepted annotation they support.
interface	Scopes	Service that provides support for creating Scope instances.
static interface	Service.ScopeHandler	Extension point for the service registry to support new scopes.
interface	ServiceRegistry	Entry point to services in Helidon.

Uses of Service.Contract in io.helidon.telemetry.opentelemetry.spi

Classes in io.helidon.telemetry.opentelemetry.spi with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	OpenTelemetryOwnershipStrategy	Strategy for contributing an application-wide OpenTelemetry runtime candidate.

Uses of Service.Contract in io.helidon.validation

Classes in io.helidon.validation with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	TypeValidation	A validator service.

Uses of Service.Contract in io.helidon.validation.spi

Classes in io.helidon.validation.spi with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	ConstraintValidatorProvider	A provider used to create validators for elements annotated with some Validation.Constraint annotation.
interface	TypeValidator<T>	A (usually generated) validator for a specific type.

Uses of Service.Contract in io.helidon.webclient.api

Classes in io.helidon.webclient.api with annotations of type Service.Contract

Modifier and Type	Interface	Description
static interface	RestClient.ErrorHandler	Error handler, must be a ServiceRegistry service.
static interface	RestClient.ErrorHandling	Error handling is used by the typed REST client to error handle responses.

Uses of Service.Contract in io.helidon.webclient.websocket

Classes in io.helidon.webclient.websocket with annotations of type Service.Contract

Modifier and Type	Class	Description
class	WsClientEndpointFactoryBase	This class is intended for generated code, and we do not expect this to be used directly by users.

Uses of Service.Contract in io.helidon.webserver.cors

Classes in io.helidon.webserver.cors with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	CorsPathConfig	Configuration of CORS for a specific path.

Uses of Service.Contract in io.helidon.webserver.grpc

Classes in io.helidon.webserver.grpc with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	GrpcRouteRegistration	A contract for generated gRPC route registrations.

Uses of Service.Contract in io.helidon.webserver.http

Classes in io.helidon.webserver.http with annotations of type Service.Contract

Modifier and Type	Interface	Description
static interface	HttpEntryPoint.AuthorizationInterceptor	Authorization-only interceptor for an operation discovered inside an active HTTP entry point.

Uses of Service.Contract in io.helidon.webserver.observe.metrics.spi

Classes in io.helidon.webserver.observe.metrics.spi with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	AutoHttpMetricsProvider	A type which, given MetricsObserverConfig, can provide a Filter which registers and updates meters for measuring HTTP requests (for example, implementing metrics semantic conventions).

Uses of Service.Contract in io.helidon.webserver.observe.tracing.spi

Classes in io.helidon.webserver.observe.tracing.spi with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	TracingSemanticConventionsProvider	Behavior of a provider of tracing semantic conventions.

Uses of Service.Contract in io.helidon.webserver.security

Classes in io.helidon.webserver.security with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	SecurityResponseMapper	A SecurityResponse mapper that is called when a security error is encountered.

Uses of Service.Contract in io.helidon.webserver.websocket

Classes in io.helidon.webserver.websocket with annotations of type Service.Contract

Modifier and Type	Interface	Description
interface	WsRouteRegistration	A contract for generated web socket registrations.