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

Class CancelTaskResponse

java.lang.Object

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

org.a2aproject.sdk.jsonrpc.common.wrappers.CancelTaskResponse

All Implemented Interfaces:

A2AMessage

public final class CancelTaskResponse
extends A2AResponse<Task>

JSON-RPC response for task cancellation requests.

This response contains the updated Task object after cancellation, typically showing TaskState.TASK_STATE_CANCELED status if the cancellation was successful.

If the task cannot be canceled (e.g., already completed) or is not found, the error field will contain a A2AError such as TaskNotCancelableError or TaskNotFoundError.

See Also:

• for the corresponding request
• for the task structure
• for the error when cancellation fails
• 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
CancelTaskResponse(Object id, A2AError error)	Constructs a CancelTaskResponse with an error.
CancelTaskResponse(Object id, Task result)	Constructs a CancelTaskResponse with a successful result.
CancelTaskResponse(String jsonrpc, Object id, Task result, A2AError error)	Constructs a CancelTaskResponse with full 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

CancelTaskResponse

public CancelTaskResponse(String jsonrpc,
 Object id,
 Task result,
 A2AError error)

Constructs a CancelTaskResponse with full parameters.

Parameters:

jsonrpc - the JSON-RPC version

id - the request ID

result - the task result

error - the error if any

CancelTaskResponse

public CancelTaskResponse(Object id,
 A2AError error)

Constructs a CancelTaskResponse with an error.

Parameters:

id - the request ID

error - the error

CancelTaskResponse

public CancelTaskResponse(Object id,
 Task result)

Constructs a CancelTaskResponse with a successful result.

Parameters:

id - the request ID

result - the task result