Asynchronous and Ajax calls for the UI framework

The async-flows tag contains all the calls for the asynchronous flow.

Asynchronous calls are the XML http calls where the request is asynchronously posted to the server. That means you and the browser can continue working on other things while waiting for a response to come back.
path attribute
The path attribute of the async-flow tag contains the incoming URL.
command attribute
The command attribute contains the Java™ command that needs to be invoked and the “method” attribute indicates the method within the class to be invoked.
Here is the sample code for the async-flow tag:
<async-flows>
	<async-flow path="WorkflowQueryStore"
 command="com.ibm.ccd.ui.worklist.WorklistPageCommand"
 method="getCollaborationAreaEntries"/>
</async-flows>