Index

A B C D G I L M S T U W
All Classes and Interfaces|All Packages

A

A2A - Class in io.a2a

Utility class providing convenience methods for working with the A2A Protocol.

A2A() - Constructor for class io.a2a.A2A

AbstractClient - Class in io.a2a.client

Abstract class representing an A2A client.

AbstractClient(List<BiConsumer<ClientEvent, AgentCard>>) - Constructor for class io.a2a.client.AbstractClient

AbstractClient(List<BiConsumer<ClientEvent, AgentCard>>, Consumer<Throwable>) - Constructor for class io.a2a.client.AbstractClient

addConsumer(BiConsumer<ClientEvent, AgentCard>) - Method in class io.a2a.client.ClientBuilder

Add a single event consumer to process events from the agent.

addConsumers(List<BiConsumer<ClientEvent, AgentCard>>) - Method in class io.a2a.client.ClientBuilder

Add multiple event consumers to process events from the agent.

B

build() - Method in class io.a2a.client.ClientBuilder

Build the configured Client instance.

build() - Method in class io.a2a.client.config.ClientConfig.Builder

Build the ClientConfig with the configured settings.

builder() - Static method in class io.a2a.client.config.ClientConfig

Create a new builder for constructing ClientConfig instances.

builder(AgentCard) - Static method in class io.a2a.client.Client

Create a new builder for constructing a client instance.

Builder() - Constructor for class io.a2a.client.config.ClientConfig.Builder

C

cancelTask(TaskIdParams) - Method in class io.a2a.client.AbstractClient

Request the agent to cancel a specific task.

cancelTask(TaskIdParams, ClientCallContext) - Method in class io.a2a.client.AbstractClient

Request the agent to cancel a specific task.

cancelTask(TaskIdParams, ClientCallContext) - Method in class io.a2a.client.Client

Request cancellation of a task.

Client - Class in io.a2a.client

A client for communicating with A2A agents using the Agent2Agent Protocol.

ClientBuilder - Class in io.a2a.client

Builder for creating instances of Client to communicate with A2A agents.

clientConfig(ClientConfig) - Method in class io.a2a.client.ClientBuilder

Configure client behavior such as streaming mode, polling, and transport preference.

ClientConfig - Class in io.a2a.client.config

Configuration for controlling A2A client behavior and communication preferences.

ClientConfig.Builder - Class in io.a2a.client.config

Builder for creating ClientConfig instances.

ClientEvent - Interface in io.a2a.client

A sealed interface representing events received by an A2A client from an agent.

ClientTaskManager - Class in io.a2a.client

Helps manage a task's lifecycle during the execution of a request.

ClientTaskManager() - Constructor for class io.a2a.client.ClientTaskManager

close() - Method in class io.a2a.client.AbstractClient

Close the transport and release any associated resources.

close() - Method in class io.a2a.client.Client

Close this client and release all associated resources.

consumers - Variable in class io.a2a.client.AbstractClient

createAgentPartsMessage(List<Part<?>>, String, String) - Static method in class io.a2a.A2A

Create an agent message with custom parts and optional context and task IDs.

createAgentTextMessage(String, String, String) - Static method in class io.a2a.A2A

Create an agent message with text content and optional context and task IDs.

createTaskPushNotificationConfiguration(TaskPushNotificationConfig) - Method in class io.a2a.client.AbstractClient

Create or update the push notification configuration for a specific task.

createTaskPushNotificationConfiguration(TaskPushNotificationConfig, ClientCallContext) - Method in class io.a2a.client.AbstractClient

Create or update the push notification configuration for a specific task.

createTaskPushNotificationConfiguration(TaskPushNotificationConfig, ClientCallContext) - Method in class io.a2a.client.Client

Configure push notifications for a task.

createUserTextMessage(String, String, String) - Static method in class io.a2a.A2A

Create a user message with text content and optional context and task IDs.

D

deleteTaskPushNotificationConfigurations(DeleteTaskPushNotificationConfigParams) - Method in class io.a2a.client.AbstractClient

Delete the list of push notification configurations for a specific task.

deleteTaskPushNotificationConfigurations(DeleteTaskPushNotificationConfigParams, ClientCallContext) - Method in class io.a2a.client.AbstractClient

Delete the list of push notification configurations for a specific task.

deleteTaskPushNotificationConfigurations(DeleteTaskPushNotificationConfigParams, ClientCallContext) - Method in class io.a2a.client.Client

Delete push notification configurations.

G

getAcceptedOutputModes() - Method in class io.a2a.client.config.ClientConfig

Get the list of accepted output modes.

getAgentCard(A2AHttpClient, String) - Static method in class io.a2a.A2A

Retrieve the agent card using a custom HTTP client.

getAgentCard(A2AHttpClient, String, String, Map<String, String>) - Static method in class io.a2a.A2A

Retrieve the agent card with full customization options.

getAgentCard(String) - Static method in class io.a2a.A2A

Retrieve the agent card for an A2A agent.

getAgentCard(String, String, Map<String, String>) - Static method in class io.a2a.A2A

Retrieve the agent card with custom path and authentication.

getCurrentTask() - Method in class io.a2a.client.ClientTaskManager

getExtendedAgentCard() - Method in class io.a2a.client.AbstractClient

Retrieve the extended AgentCard.

getExtendedAgentCard(ClientCallContext) - Method in class io.a2a.client.AbstractClient

Retrieve the extended AgentCard.

getExtendedAgentCard(ClientCallContext) - Method in class io.a2a.client.Client

Retrieve the agent's extended agent card.

getHistoryLength() - Method in class io.a2a.client.config.ClientConfig

Get the conversation history length.

getMessage() - Method in class io.a2a.client.MessageEvent

Get the message contained in this event.

getMetadata() - Method in class io.a2a.client.config.ClientConfig

Get the custom metadata attached to all requests.

getPushNotificationConfig() - Method in class io.a2a.client.config.ClientConfig

Get the default push notification configuration.

getStreamingErrorHandler() - Method in class io.a2a.client.AbstractClient

Get the error handler that should be used during streaming.

getTask() - Method in class io.a2a.client.TaskEvent

Get the task contained in this event.

getTask() - Method in class io.a2a.client.TaskUpdateEvent

Get the current complete task state.

getTask(TaskQueryParams) - Method in class io.a2a.client.AbstractClient

Retrieve the current state and history of a specific task.

getTask(TaskQueryParams, ClientCallContext) - Method in class io.a2a.client.AbstractClient

Retrieve the current state and history of a specific task.

getTask(TaskQueryParams, ClientCallContext) - Method in class io.a2a.client.Client

Retrieve a specific task by ID.

getTaskPushNotificationConfiguration(GetTaskPushNotificationConfigParams) - Method in class io.a2a.client.AbstractClient

Retrieve the push notification configuration for a specific task.

getTaskPushNotificationConfiguration(GetTaskPushNotificationConfigParams, ClientCallContext) - Method in class io.a2a.client.AbstractClient

Retrieve the push notification configuration for a specific task.

getTaskPushNotificationConfiguration(GetTaskPushNotificationConfigParams, ClientCallContext) - Method in class io.a2a.client.Client

Retrieve the push notification configuration for a task.

getUpdateEvent() - Method in class io.a2a.client.TaskUpdateEvent

Get the specific update that triggered this event.

I

io.a2a - package io.a2a

io.a2a.client - package io.a2a.client

io.a2a.client.config - package io.a2a.client.config

isPolling() - Method in class io.a2a.client.config.ClientConfig

Check if polling mode is enabled for task updates.

isStreaming() - Method in class io.a2a.client.config.ClientConfig

Check if streaming mode is enabled.

isUseClientPreference() - Method in class io.a2a.client.config.ClientConfig

Check if client transport preference is enabled.

L

listTaskPushNotificationConfigurations(ListTaskPushNotificationConfigParams) - Method in class io.a2a.client.AbstractClient

Retrieve the list of push notification configurations for a specific task with pagination support.

listTaskPushNotificationConfigurations(ListTaskPushNotificationConfigParams, ClientCallContext) - Method in class io.a2a.client.AbstractClient

Retrieve the list of push notification configurations for a specific task with pagination support.

listTaskPushNotificationConfigurations(ListTaskPushNotificationConfigParams, ClientCallContext) - Method in class io.a2a.client.Client

List all push notification configurations, optionally filtered by task or context.

listTasks(ListTasksParams) - Method in class io.a2a.client.AbstractClient

List tasks with optional filtering and pagination.

listTasks(ListTasksParams, ClientCallContext) - Method in class io.a2a.client.AbstractClient

List tasks with optional filtering and pagination.

listTasks(ListTasksParams, ClientCallContext) - Method in class io.a2a.client.Client

List tasks for the current session or context.

M

MessageEvent - Class in io.a2a.client

A client event containing an agent's message response.

MessageEvent(Message) - Constructor for class io.a2a.client.MessageEvent

Create a message event.

S

saveTaskEvent(Task) - Method in class io.a2a.client.ClientTaskManager

saveTaskEvent(TaskArtifactUpdateEvent) - Method in class io.a2a.client.ClientTaskManager

saveTaskEvent(TaskStatusUpdateEvent) - Method in class io.a2a.client.ClientTaskManager

sendMessage(Message) - Method in class io.a2a.client.AbstractClient

Send a message to the remote agent.

sendMessage(Message, List<BiConsumer<ClientEvent, AgentCard>>, Consumer<Throwable>) - Method in class io.a2a.client.AbstractClient

Send a message to the remote agent.

sendMessage(Message, List<BiConsumer<ClientEvent, AgentCard>>, Consumer<Throwable>, ClientCallContext) - Method in class io.a2a.client.AbstractClient

Send a message to the remote agent.

sendMessage(Message, List<BiConsumer<ClientEvent, AgentCard>>, Consumer<Throwable>, ClientCallContext) - Method in class io.a2a.client.Client

sendMessage(Message, ClientCallContext) - Method in class io.a2a.client.AbstractClient

Send a message to the remote agent.

sendMessage(Message, PushNotificationConfig, Map<String, Object>) - Method in class io.a2a.client.AbstractClient

Send a message to the remote agent.

sendMessage(Message, PushNotificationConfig, Map<String, Object>, ClientCallContext) - Method in class io.a2a.client.AbstractClient

Send a message to the remote agent.

sendMessage(Message, PushNotificationConfig, Map<String, Object>, ClientCallContext) - Method in class io.a2a.client.Client

Send a message to the agent.

setAcceptedOutputModes(List<String>) - Method in class io.a2a.client.config.ClientConfig.Builder

Set the accepted output modes.

setHistoryLength(Integer) - Method in class io.a2a.client.config.ClientConfig.Builder

Set the conversation history length.

setMetadata(Map<String, Object>) - Method in class io.a2a.client.config.ClientConfig.Builder

Set custom metadata to be included in all requests.

setPolling(Boolean) - Method in class io.a2a.client.config.ClientConfig.Builder

Enable or disable polling mode for task updates.

setPushNotificationConfig(PushNotificationConfig) - Method in class io.a2a.client.config.ClientConfig.Builder

Set the default push notification configuration.

setStreaming(Boolean) - Method in class io.a2a.client.config.ClientConfig.Builder

Enable or disable streaming mode.

setUseClientPreference(Boolean) - Method in class io.a2a.client.config.ClientConfig.Builder

Set whether to use client or server transport preference.

streamingErrorHandler - Variable in class io.a2a.client.AbstractClient

streamingErrorHandler(Consumer<Throwable>) - Method in class io.a2a.client.ClientBuilder

Configure an error handler for streaming scenarios.

subscribeToTask(TaskIdParams) - Method in class io.a2a.client.AbstractClient

Subscribe to a task's event stream.

subscribeToTask(TaskIdParams, List<BiConsumer<ClientEvent, AgentCard>>, Consumer<Throwable>) - Method in class io.a2a.client.AbstractClient

Subscribe to a task's event stream.

subscribeToTask(TaskIdParams, List<BiConsumer<ClientEvent, AgentCard>>, Consumer<Throwable>, ClientCallContext) - Method in class io.a2a.client.AbstractClient

Subscribe to a task's event stream.

subscribeToTask(TaskIdParams, List<BiConsumer<ClientEvent, AgentCard>>, Consumer<Throwable>, ClientCallContext) - Method in class io.a2a.client.Client

Subscribe to an existing task to receive remaining events.

subscribeToTask(TaskIdParams, ClientCallContext) - Method in class io.a2a.client.AbstractClient

Subscribe to a task's event stream.

T

TaskEvent - Class in io.a2a.client

A client event containing the complete state of a task.

TaskEvent(Task) - Constructor for class io.a2a.client.TaskEvent

Create a task event.

TaskUpdateEvent - Class in io.a2a.client

A client event containing an incremental update to a task.

TaskUpdateEvent(Task, UpdateEvent) - Constructor for class io.a2a.client.TaskUpdateEvent

Create a task update event.

toAgentMessage(String) - Static method in class io.a2a.A2A

Create a simple agent message from text.

toAgentMessage(String, String) - Static method in class io.a2a.A2A

Create an agent message from text with a specific message ID.

toString() - Method in class io.a2a.client.MessageEvent

toUserMessage(String) - Static method in class io.a2a.A2A

Create a simple user message from text.

toUserMessage(String, String) - Static method in class io.a2a.A2A

Create a user message from text with a specific message ID.

U

updateWithMessage(Message, Task) - Method in class io.a2a.client.ClientTaskManager

Update a task by adding a message to its history.

W

withTransport(Class<T>, ClientTransportConfig<T>) - Method in class io.a2a.client.ClientBuilder

Configure a transport protocol with a pre-built configuration.

withTransport(Class<T>, ClientTransportConfigBuilder<? extends ClientTransportConfig<T>, ?>) - Method in class io.a2a.client.ClientBuilder

Configure a transport protocol using a builder for type-safe configuration.

A B C D G I L M S T U W
All Classes and Interfaces|All Packages