Package org.a2aproject.sdk.jsonrpc.common.wrappers

Class SendStreamingMessageResponse

java.lang.Object

org.a2aproject.sdk.jsonrpc.common.wrappers.A2AResponse<StreamingEventKind>

org.a2aproject.sdk.jsonrpc.common.wrappers.SendStreamingMessageResponse

All Implemented Interfaces:

A2AMessage

public final class SendStreamingMessageResponse
extends A2AResponse<StreamingEventKind>

JSON-RPC response for streaming message initiation requests.

This response is sent after receiving a SendStreamingMessageRequest and contains a stream of StreamingEventKind events representing the agent's processing progress. Unlike non-streaming responses, this provides real-time updates as the agent works.

The result field contains events such as Task, TaskStatusUpdateEvent, TaskArtifactUpdateEvent, and Message as they are produced by the agent.

If an error occurs during request processing, the error field will be populated with a A2AError instead of streaming events.

See Also:

• for the corresponding request
• for the types of events that can be streamed
• A2A Protocol Specification

Field Summary

Fields inherited from class org.a2aproject.sdk.jsonrpc.common.wrappers.A2AResponse

error, id, jsonrpc, result

Fields inherited from interface org.a2aproject.sdk.jsonrpc.common.wrappers.A2AMessage

JSONRPC_VERSION

Constructor Summary

Constructors

Constructor	Description
SendStreamingMessageResponse(Object id, A2AError error)	Constructs error response.
SendStreamingMessageResponse(Object id, StreamingEventKind result)	Constructs successful response.
SendStreamingMessageResponse(String jsonrpc, Object id, StreamingEventKind result, A2AError error)	Constructs response with all parameters.

Method Summary

Methods inherited from class org.a2aproject.sdk.jsonrpc.common.wrappers.A2AResponse

getError, getId, getJsonrpc, getResult

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SendStreamingMessageResponse

public SendStreamingMessageResponse(String jsonrpc,
 Object id,
 StreamingEventKind result,
 A2AError error)

Constructs response with all parameters.

Parameters:

jsonrpc - the JSON-RPC version

id - the request ID

result - the result

error - the error if any

SendStreamingMessageResponse

public SendStreamingMessageResponse(Object id,
 StreamingEventKind result)

Constructs successful response.

Parameters:

id - the request ID

result - the result

SendStreamingMessageResponse

public SendStreamingMessageResponse(Object id,
 A2AError error)

Constructs error response.

Parameters:

id - the request ID

error - the error