org.springframework.webflow.context.servlet
Interface FlowUrlHandler

All Known Implementing Classes:

DefaultFlowUrlHandler, FilenameFlowUrlHandler, WebFlow1FlowUrlHandler

public interface FlowUrlHandler

A interface for parsing and generating flow URLs. Encapsulates a specific flow URL format.

Author:

Keith Donald

Method Summary

String	createFlowDefinitionUrl(String flowId, AttributeMap input, javax.servlet.http.HttpServletRequest request) Create a URL that when addressed will launch a new execution of a flow.
String	createFlowExecutionUrl(String flowId, String flowExecutionKey, javax.servlet.http.HttpServletRequest request) Create a URL that when addressed will resume an existing execution of a flow.
String	getFlowExecutionKey(javax.servlet.http.HttpServletRequest request) Extract the flow execution from the request.
String	getFlowId(javax.servlet.http.HttpServletRequest request) Extract the flow id from the request.

Method Detail

getFlowExecutionKey

String getFlowExecutionKey(javax.servlet.http.HttpServletRequest request)

Extract the flow execution from the request.

Parameters:

request - the request

Returns:

the flow execution key, or null if no flow execution key is present

getFlowId

String getFlowId(javax.servlet.http.HttpServletRequest request)

Extract the flow id from the request.

Parameters:

request - the request

Returns:

the flow id, or null if no flow id is present

createFlowDefinitionUrl

String createFlowDefinitionUrl(String flowId,
                               AttributeMap input,
                               javax.servlet.http.HttpServletRequest request)

Create a URL that when addressed will launch a new execution of a flow.

Parameters:

flowId - the id of the flow definition

input - the input to pass the new flow execution

request - the current request

Returns:

the flow definition url

createFlowExecutionUrl

String createFlowExecutionUrl(String flowId,
                              String flowExecutionKey,
                              javax.servlet.http.HttpServletRequest request)

Create a URL that when addressed will resume an existing execution of a flow.

Parameters:

flowExecutionKey - the flow execution key that is paused and waiting to be resumed

request - the current request

Returns:

the flow execution url