javax.portlet

Interface StateAwareResponse

All Superinterfaces:

PortletResponse

All Known Subinterfaces:

ActionResponse, EventResponse

All Known Implementing Classes:

ActionResponseWrapper, EventResponseWrapper

public interface StateAwareResponse
extends PortletResponse

The StateAwareResponse represents a response that can modify state information or send events.
It extends the PortletResponse interface.

Since:

2.0

See Also:

PortletResponse

Method Summary

Methods

Modifier and Type	Method and Description
PortletMode	getPortletMode() Returns the currently set portlet mode on this reponse.
Map<String,String[]>	getRenderParameterMap() Returns a Map of the render parameters currently set on this response.
WindowState	getWindowState() Returns the currently set window state on this response.
void	removePublicRenderParameter(String name) Removes the specified public render parameter.
void	setEvent(QName name, Serializable value) Publishes an Event with the given payload.
void	setEvent(String name, Serializable value) Publishes an Event with the given payload in the default namespace.
void	setPortletMode(PortletMode portletMode) Sets the portlet mode of a portlet to the given portlet mode.
void	setRenderParameter(String key, String value) Sets a String parameter for the render request.
void	setRenderParameter(String key, String[] values) Sets a String array parameter for the render request.
void	setRenderParameters(Map<String,String[]> 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, addProperty, addProperty, createElement, encodeURL, getNamespace, setProperty

Method Detail

setWindowState

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().

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

See Also:

WindowState

setPortletMode

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().

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

setRenderParameters

void setRenderParameters(Map<String,String[]> parameters)

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.

The portlet should not modify the map any further after 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:

IllegalArgumentException - if parameters is null, if any of the keys 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.

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

setRenderParameter

void setRenderParameter(String key,
                      String value)

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:

IllegalArgumentException - if key is null.

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

setRenderParameter

void setRenderParameter(String key,
                      String[] values)

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:

IllegalArgumentException - if key or value are null.

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

setEvent

void setEvent(QName name,
            Serializable value)

Publishes an Event with the given payload.

The object type of the value must be compliant with the specified event type in the portlet deployment descriptor.

The value must have a valid JAXB binding and be serializable.

Parameters:

name - the event name to publish, must not be null

value - the value of this event, must have a valid JAXB binding and be serializable, or null.

Throws:

IllegalArgumentException - if name is null, the value is not serializable, the value does not have a valid JAXB binding, the object type of the value is not the same as specified in the portlet deployment descriptor for this event name.

Since:

2.0

setEvent

void setEvent(String name,
            Serializable value)

Publishes an Event with the given payload in the default namespace.

The name is treated as local part of the event QName and the namespace is either taken from the default-event-namespace element in the portlet deployment descriptor, or if this element is not provided the XML default namespace XMLConstants.NULL_NS_URI is used.

The object type of the value must be compliant with the specified event type in the portlet deployment descriptor.

The value must have a valid JAXB binding and be serializable.

Parameters:

name - the local part of the event name to publish, must not be null

value - the value of this event, must have a valid JAXB binding and be serializable, or null.

Throws:

IllegalArgumentException - if name is null, the value is not serializable, the value does not have a valid JAXB binding, the object type of the value is not the same as specified in the portlet deployment descriptor for this event name.

Since:

2.0

getRenderParameterMap

Map<String,String[]> getRenderParameterMap()

Returns a Map of the render parameters currently set on this response.

The values in the returned Map are from type String array (String[]).

If no parameters exist this method returns an empty Map.

Returns:

Map containing render parameter names as keys and parameter values as map values, or an empty Map if no parameters exist. The keys in the parameter map are of type String. The values in the parameter map are of type String array (String[]).

Since:

2.0

getPortletMode

PortletMode getPortletMode()

Returns the currently set portlet mode on this reponse.

Returns:

the portlet mode, or null if none is set

Since:

2.0

getWindowState

WindowState getWindowState()

Returns the currently set window state on this response.

Returns:

the window state, or null if none is set

Since:

2.0

removePublicRenderParameter

void removePublicRenderParameter(String name)

Removes the specified public render parameter. The name must reference a public render parameter defined in the portlet deployment descriptor under the public-render-parameter element with the identifier mapping to the parameter name.

Parameters:

name - a String specifying the name of the public render parameter to be removed

Throws:

IllegalArgumentException - if name is null.

Since:

2.0