Uses of Interface
org.a2aproject.sdk.spec.Event

Packages that use Event

Package	Description
org.a2aproject.sdk.spec	JSON processing exceptions for the A2A Java SDK.

Uses of Event in org.a2aproject.sdk.spec

Subinterfaces of Event in org.a2aproject.sdk.spec

Modifier and Type	Interface	Description
interface	StreamingEventKind	Sealed interface for events that can be emitted during streaming A2A Protocol operations.

Classes in org.a2aproject.sdk.spec that implement Event

Modifier and Type	Class	Description
class	A2AError	Marker interface for A2A Protocol error events.
class	A2AProtocolError	Represents a protocol-level error in the A2A Protocol.
class	ContentTypeNotSupportedError	A2A Protocol error indicating incompatibility between requested content types and agent capabilities.
class	ExtendedAgentCardNotConfiguredError	A2A Protocol error indicating that the agent does not have an authenticated extended card configured.
class	ExtensionSupportRequiredError	A2A Protocol error indicating that a client requested use of an extension marked as required but did not declare support for it.
class	InternalError	JSON-RPC error indicating an internal error occurred on the server.
class	InvalidAgentResponseError	A2A Protocol error indicating that an agent returned a response not conforming to protocol specifications.
class	InvalidParamsError	JSON-RPC error indicating that method parameters are invalid or missing required fields.
class	InvalidRequestError	JSON-RPC error indicating that the request payload is not a valid JSON-RPC Request object.
class	JSONParseError	JSON-RPC error indicating that the server received invalid JSON that could not be parsed.
final record	Message	Represents a single message in the conversation between a user and an agent in the A2A Protocol.
class	MethodNotFoundError	JSON-RPC error indicating that the requested method does not exist or is not available.
class	PushNotificationNotSupportedError	A2A Protocol error indicating that the agent does not support push notifications.
final record	Task	Represents a single, stateful operation or conversation between a client and an agent in the A2A Protocol.
final record	TaskArtifactUpdateEvent	Event notifying that a task artifact has been created, modified, or appended to.
class	TaskNotCancelableError	A2A Protocol error indicating that a task cannot be canceled in its current state.
class	TaskNotFoundError	A2A Protocol error indicating that the requested task ID does not exist.
final record	TaskStatusUpdateEvent	An event sent by the agent to notify the client of a change in a task's status.
class	UnsupportedOperationError	A2A Protocol error indicating that the requested operation is not supported by the agent.
class	VersionNotSupportedError	A2A Protocol error indicating that the A2A protocol version specified in the request is not supported by the agent.