com.yahoo.bard.webservice.web.handlers.workflow

Interface RequestWorkflowProvider

All Known Implementing Classes:

DruidWorkflow, SqlWorkflow

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface RequestWorkflowProvider

Request workflow provider builds a request processing chain for handing druid data requests.

Method Summary

Modifier and Type	Method and Description
DataRequestHandler	buildWorkflow() Construct a workflow instance with a starting point request handler.

Method Detail

buildWorkflow

DataRequestHandler buildWorkflow()

Construct a workflow instance with a starting point request handler.

The workflow should be acyclic, moving a request along until a response is submitted or delegated to an asynchronous response callback.

Returns:

The data request handler at the start of the workflow chain