Package io.temporal.internal.replay

Interface WorkflowRunTaskHandler

public interface WorkflowRunTaskHandler

Task handler that encapsulates a cached workflow and can handle multiple calls to handleWorkflowTask for the same workflow run.

Instances of this object can be cached in between workflow tasks.

Method Summary

Modifier and Type	Method	Description
void	close()
QueryResult	handleDirectQueryWorkflowTask(io.temporal.api.workflowservice.v1.PollWorkflowTaskQueueResponseOrBuilder workflowTask, WorkflowHistoryIterator historyIterator)	Handles a Direct Query (or Legacy Query) scenario.
WorkflowTaskResult	handleWorkflowTask(io.temporal.api.workflowservice.v1.PollWorkflowTaskQueueResponseOrBuilder workflowTask, WorkflowHistoryIterator historyIterator)	Handles a single new workflow task of the workflow.
void	resetStartedEventId(java.lang.Long eventId)	Reset the workflow event ID.

Method Detail

handleWorkflowTask

WorkflowTaskResult handleWorkflowTask(io.temporal.api.workflowservice.v1.PollWorkflowTaskQueueResponseOrBuilder workflowTask,
                                      WorkflowHistoryIterator historyIterator)
                               throws java.lang.Throwable

Handles a single new workflow task of the workflow.

Parameters:

workflowTask - task to handle

Returns:

an object that can be used to build workflow task completion or failure response

Throws:

java.lang.Throwable - if processing experienced issues that are considered unrecoverable inside the current workflow task. NonDeterministicException or Error are such cases.

handleDirectQueryWorkflowTask

QueryResult handleDirectQueryWorkflowTask(io.temporal.api.workflowservice.v1.PollWorkflowTaskQueueResponseOrBuilder workflowTask,
                                          WorkflowHistoryIterator historyIterator)
                                   throws java.lang.Throwable

Handles a Direct Query (or Legacy Query) scenario. In this case, it's not a real workflow task and the processing can't generate any new commands.

Parameters:

workflowTask - task to handle

Returns:

an object that can be used to build a legacy query response

Throws:

java.lang.Throwable - if processing experienced issues that are considered unrecoverable inside the current workflow task. NonDeterministicException or Error are such cases.

resetStartedEventId

void resetStartedEventId(java.lang.Long eventId)

Reset the workflow event ID.

Parameters:

eventId - the event ID to reset the cached state to.

close

void close()