All Classes and Interfaces

Class	Description
CapturedClientError	One error raised in a browser, with the detail vaadin.client.errors cannot carry.
CapturedInteraction	One captured user interaction worth surfacing as an insight, with everything needed to backtrack and replicate it: which route, which component, which user action, how long it took, and, for failures, which exception and where in application code it blew up.
CapturedQuery	One captured data provider query worth surfacing as an insight: which component asked for data, on which route, how much it asked for, how much came back, and how long it took.
ClientErrorCollector	Retains the detail of an error a browser reported, which vaadin.client.errors counts but cannot describe.
ClientMetricsBinder	Validates and records samples emitted by the in-browser collector.
ClientResourceLoader	Loads a bundled client-side JavaScript resource into a UI exactly once.
ClientSample	One client-side measurement, deserialized by Flow's JSON codec from the browser-side collector.
ComponentResolver	Resolves the Component an RPC invocation targets.
DataQueryCollector	Captures data provider queries worth surfacing: ones that threw, and ones slower than the UX budget.
InsightsService	Turns captured interactions into insights, and renders the payload served at /actuator/vaadin/observability.
InteractionCollector	Captures interesting client-to-server invocations as CapturedInteractions: failed ones (when error metrics are enabled) and ones slower than the UX budget (when request metrics are enabled).
MeterNames	Names of the meters published by Observability Kit.
MetricsCollectorElement	Hidden helper component attached to each UI when client metrics are enabled.
MetricsServiceInitListener	Wires Observability Kit instrumentation into a VaadinService at initialization.
ObservabilityDevToolsHandler	Dev-mode bridge between the live Micrometer MeterRegistry and the Vaadin Copilot metrics panel.
ObservabilityKit	Programmatic bootstrap for standalone (non-Spring) deployments.
ObservabilitySettings	Immutable settings for Observability Kit instrumentation.
ObservabilitySettings.Builder	Builder for ObservabilitySettings.
ObservationNames	Span name + attribute-key constants for Observability Kit Observations.
RecentClientErrors	Bounded in-memory ring buffer of errors reported by browsers.
RecentInteractions	Bounded in-memory ring buffer of captured interactions.
RecentQueries	Bounded in-memory ring buffer of captured data provider queries.
ResyncDetectionFilter	Portable, framework-agnostic servlet filter that observes UIDL message resends and resynchronization requests (prototype, kit-only, no Flow changes).
ResyncDetector	Prototype detector that classifies an incoming UIDL request body as a normal message, a re-sent (duplicate) message, or a full resynchronization request, and records a MeterNames.RESYNC counter for the two recovery cases.
ResyncDetector.Kind	Classification of a single UIDL request.
ResyncDetector.Result	Result of classifying a request.
ResyncInspector	Servlet-level glue shared by the resync/resend detection filters: it recognizes UIDL requests, derives the per-UI key, and drives a ResyncDetector against per-UI state kept in the HTTP session.
RouteTagResolver	Maps a Flow navigation target to a low-cardinality tag value suitable for Micrometer.
TracingExecutor	Wraps the Vaadin service Executor so that the trace context (and any other ThreadLocalAccessor-backed state) active when a task is submitted is restored when the task runs; and each task gets its own vaadin.ui.access span when an ObservationRegistry is supplied.
VaadinTelemetryContext	Exposes the Vaadin view context of the request currently being handled on this thread, so instrumentation living outside the Vaadin runtime (for example a JDBC DataSource proxy) can attribute its measurements to the view that triggered them.