org.apache.tapestry.engine
Class DirectService

java.lang.Object
  org.apache.tapestry.engine.DirectService

All Implemented Interfaces:

IEngineService

public class DirectService
extends Object
implements IEngineService

Implementation of the direct service, which encodes the page and component id in the service context, and passes application-defined parameters as well.

Since:

1.0.9

Author:

Howard Lewis Ship

Field Summary

protected LinkFactory	_linkFactory
protected WebRequest	_request
protected ResponseRenderer	_responseRenderer

Constructor Summary

DirectService()

Method Summary

ILink	getLink(boolean post, Object parameter) Builds a URL for a service.
String	getName() Returns the name of the service.
void	service(IRequestCycle cycle) Perform the service, interpreting the URL (from the HttpServletRequest) responding appropriately, and rendering a result page.
void	setLinkFactory(LinkFactory linkFactory)
void	setRequest(WebRequest request)
void	setRequestCycle(IRequestCycle requestCycle)
void	setResponseRenderer(ResponseRenderer responseRenderer)
protected void	triggerComponent(IRequestCycle cycle, IDirect direct, Object[] parameters)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_responseRenderer

protected ResponseRenderer _responseRenderer

Since:

4.0

_linkFactory

protected LinkFactory _linkFactory

Since:

4.0

_request

protected WebRequest _request

Since:

4.0

Constructor Detail

DirectService

public DirectService()

Method Detail

getLink

public ILink getLink(boolean post,
                     Object parameter)

Description copied from interface: IEngineService

Builds a URL for a service. This is performed during the rendering phase of one request cycle and builds URLs that will invoke activity in a subsequent request cycle.

This method changed incompatibly between release 3.0 and release 4.0.

Specified by:

getLink in interface IEngineService

Parameters:

post - if true, then the link will be used for a post (not a get, i.e., for a HTML form); this may affect what information is encoded into the link

parameter - An object that provide any additional information needed by the service. Each service implementation will expect that an object of the proper type be passed in. In some cases, a simple String will do; in others, a specific object (possibly implementing an interface) will be required.

Returns:

The URL for the service. The URL will have to be encoded via HttpServletResponse.encodeURL(java.lang.String).

service

public void service(IRequestCycle cycle)
             throws IOException

Description copied from interface: IEngineService

Perform the service, interpreting the URL (from the HttpServletRequest) responding appropriately, and rendering a result page.

Specified by:

service in interface IEngineService

Parameters:

cycle - the incoming request

Throws:

IOException

triggerComponent

protected void triggerComponent(IRequestCycle cycle,
                                IDirect direct,
                                Object[] parameters)

Since:

4.0

getName

public String getName()

Description copied from interface: IEngineService

Returns the name of the service.

Specified by:

getName in interface IEngineService

setResponseRenderer

public void setResponseRenderer(ResponseRenderer responseRenderer)

Since:

4.0

setLinkFactory

public void setLinkFactory(LinkFactory linkFactory)

Since:

4.0

setRequest

public void setRequest(WebRequest request)

Since:

4.0

setRequestCycle

public void setRequestCycle(IRequestCycle requestCycle)

Since:

4.0