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ActionResponse - JBOSS Portal 2.4 API 英文版文档

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javax.portlet
Interface ActionResponse

All Superinterfaces:

PortletResponse

All Known Implementing Classes:

ActionResponseImpl

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public interface ActionResponse

extends PortletResponse

The ActionResponse interface represents the portlet response to an action request. It extends the PortletResponse interface to provide specific action response functionality to portlets.
The portlet container creates an ActionResponse object and passes it as argument to the portlet's processAction method.

See Also:

ActionRequest, PortletResponse

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Method Summary
void	sendRedirect(java.lang.String location)           Instructs the portlet container to send a redirect response to the client using the specified redirect location URL.
void	setPortletMode(PortletMode portletMode)           Sets the portlet mode of a portlet to the given portlet mode.
void	setRenderParameter(java.lang.String key, java.lang.String value)           Sets a String parameter for the render request.
void	setRenderParameter(java.lang.String key, java.lang.String[] values)           Sets a String array parameter for the render request.
void	setRenderParameters(java.util.Map parameters)           Sets a parameter map for the render request.
void	setWindowState(WindowState windowState)           Sets the window state of a portlet to the given window state.

 

Methods inherited from interface javax.portlet.PortletResponse

addProperty, encodeURL, setProperty

 

Method Detail

setWindowState

public void setWindowState(WindowState windowState)
                    throws WindowStateException

Sets the window state of a portlet to the given window state.

Possible values are the standard window states and any custom window states supported by the portal and the portlet. Standard window states are:

• MINIMIZED
• NORMAL
• MAXIMIZED

Parameters:

windowState - the new portlet window state

Throws:

WindowStateException - if the portlet cannot switch to the specified window state. To avoid this exception the portlet can check the allowed window states with Request.isWindowStateAllowed().

java.lang.IllegalStateException - if the method is invoked after sendRedirect has been called.

See Also:

WindowState

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setPortletMode

public void setPortletMode(PortletMode portletMode)
                    throws PortletModeException

Sets the portlet mode of a portlet to the given portlet mode.

Possible values are the standard portlet modes and any custom portlet modes supported by the portal and the portlet. Portlets must declare in the deployment descriptor the portlet modes they support for each markup type. Standard portlet modes are:

• EDIT
• HELP
• VIEW

Note: The portlet may still be called in a different window state in the next render call, depending on the portlet container / portal.

Parameters:

portletMode - the new portlet mode

Throws:

PortletModeException - if the portlet cannot switch to this portlet mode, because the portlet or portal does not support it for this markup, or the current user is not allowed to switch to this portlet mode. To avoid this exception the portlet can check the allowed portlet modes with Request.isPortletModeAllowed().

java.lang.IllegalStateException - if the method is invoked after sendRedirect has been called.

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sendRedirect

public void sendRedirect(java.lang.String location)
                  throws java.io.IOException,
                         java.lang.IllegalArgumentException,
                         java.lang.IllegalStateException

Instructs the portlet container to send a redirect response to the client using the specified redirect location URL.

This method only accepts an absolute URL (e.g. http://my.co/myportal/mywebap/myfolder/myresource.gif) or a full path URI (e.g. /myportal/mywebap/myfolder/myresource.gif). If required, the portlet container may encode the given URL before the redirection is issued to the client.

The sendRedirect method can not be invoked after any of the following methods of the ActionResponse interface has been called:

• setPortletMode
• setWindowState
• setRenderParameter
• setRenderParameters

Parameters:

location - the redirect location URL

Throws:

java.io.IOException - if an input or output exception occurs.

java.lang.IllegalArgumentException - if a relative path URL is given

java.lang.IllegalStateException - if the method is invoked after any of above mentioned methods of the ActionResponse interface has been called.

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setRenderParameters

public void setRenderParameters(java.util.Map parameters)
                         throws java.lang.IllegalArgumentException,
                                java.lang.IllegalStateException

Sets a parameter map for the render request.

All previously set render parameters are cleared.

These parameters will be accessible in all sub-sequent render calls via the PortletRequest.getParameter call until a new request is targeted to the portlet.

The given parameters do not need to be encoded prior to calling this method.

Parameters:

parameters - Map containing parameter names for the render phase as keys and parameter values as map values. The keys in the parameter map must be of type String. The values in the parameter map must be of type String array (String[]).

Throws:

java.lang.IllegalArgumentException - if parameters is null, if any of the key/values in the Map are null, if any of the keys is not a String, or if any of the values is not a String array.

java.lang.IllegalStateException - if the method is invoked after sendRedirect has been called.

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setRenderParameter

public void setRenderParameter(java.lang.String key,
                               java.lang.String value)
                        throws java.lang.IllegalArgumentException,
                               java.lang.IllegalStateException

Sets a String parameter for the render request.

These parameters will be accessible in all sub-sequent render calls via the PortletRequest.getParameter call until a request is targeted to the portlet.

This method replaces all parameters with the given key.

The given parameter do not need to be encoded prior to calling this method.

Parameters:

key - key of the render parameter

value - value of the render parameter

Throws:

java.lang.IllegalArgumentException - if key or value are null.

java.lang.IllegalStateException - if the method is invoked after sendRedirect has been called.

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setRenderParameter

public void setRenderParameter(java.lang.String key,
                               java.lang.String[] values)
                        throws java.lang.IllegalArgumentException,
                               java.lang.IllegalStateException

Sets a String array parameter for the render request.

These parameters will be accessible in all sub-sequent render calls via the PortletRequest.getParameter call until a request is targeted to the portlet.

This method replaces all parameters with the given key.

The given parameter do not need to be encoded prior to calling this method.

Parameters:

key - key of the render parameter

values - values of the render parameter

Throws:

java.lang.IllegalArgumentException - if key or value are null.

java.lang.IllegalStateException - if the method is invoked after sendRedirect has been called.

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