Uses of Interface
dev.langchain4j.observability.api.event.AiServiceEvent

Packages that use AiServiceEvent

Package	Description
dev.langchain4j.observability.api
dev.langchain4j.observability.api.event
dev.langchain4j.observability.api.listener
dev.langchain4j.observability.event
dev.langchain4j.service

Uses of AiServiceEvent in dev.langchain4j.observability.api

Methods in dev.langchain4j.observability.api with type parameters of type AiServiceEvent

Modifier and Type	Method	Description
<T extends AiServiceEvent> void	AiServiceListenerRegistrar.fireEvent(T event)	Fires the given event to all registered AiServiceListeners.
<T extends AiServiceEvent> void	DefaultAiServiceListenerRegistrar.fireEvent(T event)	Fires the given event to all registered AiServiceListeners.
<T extends AiServiceEvent> void	AiServiceListenerRegistrar.register(AiServiceListener<T> listener)	Registers a listener to receive AiServiceEvent notifications.
<T extends AiServiceEvent> void	DefaultAiServiceListenerRegistrar.register(AiServiceListener<T> listener)	Registers a listener to receive AiServiceEvent notifications.
<T extends AiServiceEvent> void	AiServiceListenerRegistrar.unregister(AiServiceListener<T> listener)	Unregisters a previously registered AiServiceListener, stopping it from receiving further AiServiceEvent notifications.
<T extends AiServiceEvent> void	DefaultAiServiceListenerRegistrar.unregister(AiServiceListener<T> listener)	Unregisters a previously registered AiServiceListener, stopping it from receiving further AiServiceEvent notifications.

Uses of AiServiceEvent in dev.langchain4j.observability.api.event

Classes in dev.langchain4j.observability.api.event with type parameters of type AiServiceEvent

Modifier and Type	Class	Description
static class	AiServiceEvent.Builder<T extends AiServiceEvent>	An abstract base class for building instances of types that extend AiServiceEvent.

Subinterfaces of AiServiceEvent in dev.langchain4j.observability.api.event

Modifier and Type	Interface	Description
interface	AiServiceCancelledEvent	Invoked when an AI Service invocation is cancelled before it completes, for example when the Flow.Publisher subscription is cancelled, the returned CompletableFuture is cancelled, or StreamingHandle.cancel() is called from a TokenStream callback that receives a context, such as onPartialResponseWithContext.
interface	AiServiceCompletedEvent	Represents an event that occurs upon the completion of an invocation.
interface	AiServiceErrorEvent	Represents an event that occurs when an AI Service invocation fails.
interface	AiServiceInvocationSummaryEvent	A composite event summarizing a single AI Service invocation: all the events fired for it.
interface	AiServiceRequestIssuedEvent	Invoked just before a ChatRequest is sent.
interface	AiServiceResponseReceivedEvent	Invoked when response from a ChatModel is received.
interface	AiServiceStartedEvent	Called when an LLM invocation has started.
interface	GuardrailExecutedEvent<P extends GuardrailRequest<P>, R extends GuardrailResult<R>, G extends Guardrail<P,R>>	Represents an event that is executed when a guardrail validation occurs.
interface	InputGuardrailExecutedEvent	Represents an event that is triggered upon the execution of an input guardrail validation.
interface	OutputGuardrailExecutedEvent	Represents an event executed during the output guardrail validation process.
interface	RetrievalAugmentedEvent	Invoked once per invocation of an AI Service that uses retrieval-augmented generation (RAG), configured with contentRetriever(...) or retrievalAugmentor(...), after the contents to add to the user message were retrieved, also when nothing was retrieved.
interface	ToolCompensatedEvent	Invoked after a successfully-executed tool is compensated (rolled back) - for example when another tool in the same round failed, or when the invocation was cancelled.
interface	ToolExecutedEvent	Invoked after the tool is executed.

Methods in dev.langchain4j.observability.api.event with type parameters of type AiServiceEvent

Modifier and Type	Method	Description
<T extends AiServiceEvent> Class<T>	AiServiceEvent.eventClass()	Retrieves the class type of the event, representing the specific category of the AI Service invocation event.
<T extends AiServiceEvent> AiServiceEvent.Builder<T>	AiServiceEvent.toBuilder()	Creates a new builder instance initialized with the properties of this AiServiceEvent.

Methods in dev.langchain4j.observability.api.event that return types with arguments of type AiServiceEvent

Modifier and Type	Method	Description
List<AiServiceEvent>	AiServiceInvocationSummaryEvent.AiServiceInvocationSummaryEventBuilder.events()	Returns the events added to this builder.
List<AiServiceEvent>	AiServiceInvocationSummaryEvent.events()	Returns all the events fired for this AI Service invocation, in the order they were fired.

Methods in dev.langchain4j.observability.api.event with parameters of type AiServiceEvent

Modifier and Type	Method	Description
AiServiceInvocationSummaryEvent.AiServiceInvocationSummaryEventBuilder	AiServiceInvocationSummaryEvent.AiServiceInvocationSummaryEventBuilder.event(AiServiceEvent event)	Appends a single event to the events previously added to this builder.

Method parameters in dev.langchain4j.observability.api.event with type arguments of type AiServiceEvent

Modifier and Type	Method	Description
AiServiceInvocationSummaryEvent.AiServiceInvocationSummaryEventBuilder	AiServiceInvocationSummaryEvent.AiServiceInvocationSummaryEventBuilder.events(List<AiServiceEvent> events)	Sets the events, replacing any events previously added to this builder.

Uses of AiServiceEvent in dev.langchain4j.observability.api.listener

Classes in dev.langchain4j.observability.api.listener with type parameters of type AiServiceEvent

Modifier and Type	Interface	Description
interface	AiServiceListener<T extends AiServiceEvent>	A AiServiceEvent listener that listens for

Uses of AiServiceEvent in dev.langchain4j.observability.event

Classes in dev.langchain4j.observability.event that implement AiServiceEvent

Modifier and Type	Class	Description
class	AbstractAiServiceEvent
class	DefaultAiServiceCancelledEvent	Default implementation of AiServiceCancelledEvent.
class	DefaultAiServiceCompletedEvent	Default implementation of AiServiceCompletedEvent.
class	DefaultAiServiceErrorEvent	Default implementation of AiServiceErrorEvent.
class	DefaultAiServiceInvocationSummaryEvent	Default implementation of AiServiceInvocationSummaryEvent.
class	DefaultAiServiceRequestIssuedEvent	Default implementation of AiServiceRequestIssuedEvent.
class	DefaultAiServiceResponseReceivedEvent	Default implementation of AiServiceResponseReceivedEvent.
class	DefaultAiServiceStartedEvent	Default implementation of AiServiceStartedEvent.
class	DefaultGuardrailExecutedEvent<P extends GuardrailRequest<P>, R extends GuardrailResult<R>, G extends Guardrail<P,R>, E extends GuardrailExecutedEvent<P,R,G>>	Represents an event that is executed when a guardrail validation occurs.
class	DefaultInputGuardrailExecutedEvent	Default implementation of InputGuardrailExecutedEvent.
class	DefaultOutputGuardrailExecutedEvent	Default implementation of OutputGuardrailExecutedEvent.
class	DefaultRetrievalAugmentedEvent	Default implementation of RetrievalAugmentedEvent.
class	DefaultToolCompensatedEvent	Default implementation of ToolCompensatedEvent.
class	DefaultToolExecutedEvent	Default implementation of ToolExecutedEvent.

Methods in dev.langchain4j.observability.event that return types with arguments of type AiServiceEvent

Modifier and Type	Method	Description
List<AiServiceEvent>	DefaultAiServiceInvocationSummaryEvent.events()

Uses of AiServiceEvent in dev.langchain4j.service

Methods in dev.langchain4j.service with type parameters of type AiServiceEvent

Modifier and Type	Method	Description
<I extends AiServiceEvent> AiServices<T>	AiServices.registerListener(AiServiceListener<I> listener)	Registers an AiServiceListener listener for AI service events for this AI Service.
<I extends AiServiceEvent> AiServices<T>	AiServices.unregisterListener(AiServiceListener<I> listener)	Unregisters an AiServiceListener listener for AI service events for this AI Service.