org.apache.wicket.markup.html
Class WebPage

java.lang.Object
  org.apache.wicket.Component
      org.apache.wicket.MarkupContainer
          org.apache.wicket.Page
              org.apache.wicket.markup.html.WebPage

All Implemented Interfaces:

Serializable, Iterable<Component>, IEventSink, IEventSource, IClusterable, IConverterLocator, IRedirectListener, IRequestListener, IHeaderContributor, IManageablePage, IRequestableComponent, IRequestablePage, IHierarchical<Component>

Direct Known Subclasses:

AccessDeniedPage, BrowserInfoPage, DummyHomePage, DummyPanelPage, ExceptionErrorPage, InternalErrorPage, MockHomePage, PageExpiredErrorPage, PopupCloseLink.ClosePopupPage, RedirectPage

public class WebPage
extends Page

Base class for HTML pages. This subclass of Page simply returns HTML when asked for its markup type. It also has a method which subclasses can use to retrieve a bookmarkable link to the application's home page.

WebPages can be constructed with any constructor when they are being used in a Wicket session, but if you wish to link to a Page using a URL that is "bookmarkable" (which implies that the URL will not have any session information encoded in it, and that you can call this page directly without having a session first directly from your browser), you need to implement your Page with a no-arg constructor or with a constructor that accepts a PageParameters argument (which wraps any query string parameters for a request). In case the page has both constructors, the constructor with PageParameters will be used.

Author:

Jonathan Locke, Eelco Hillenius, Juergen Donnerstag, Gwyn Evans

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.wicket.Page

Page.IPageSerializer

Field Summary

Fields inherited from class org.apache.wicket.Page

serializer

Fields inherited from class org.apache.wicket.Component

ENABLE, FLAG_CONFIGURED, FLAG_INITIALIZED, FLAG_REMOVING_FROM_HIERARCHY, FLAG_RESERVED1, FLAG_RESERVED2, FLAG_RESERVED3, FLAG_RESERVED4, FLAG_RESERVED5, FLAG_RESERVED8, PATH_SEPARATOR, RENDER

Fields inherited from interface org.apache.wicket.IRedirectListener

INTERFACE

Constructor Summary

protected	WebPage() Constructor.
protected	WebPage(IModel<?> model)
protected	WebPage(PageParameters parameters) Constructor which receives wrapped query string parameters for a request.

Method Summary

protected void	configureResponse() Set-up response with appropriate content type, locale and encoding.
MarkupType	getMarkupType() Gets the markup type for a WebPage, which is "html" by default.
protected BookmarkablePageLink<Void>	homePageLink(String id) Creates and returns a bookmarkable link to this application's home page.
protected void	onAfterRender() Called just after a component is rendered.
protected void	setHeaders(WebResponse response) Subclasses can override this to set there headers when the Page is being served.

Methods inherited from class org.apache.wicket.Page

afterCallComponent, beforeCallComponent, componentChanged, componentRendered, detachModels, dirty, dirty, endComponentRender, getAutoIndex, getId, getMarkup, getNumericId, getPage, getPageClass, getPageId, getPageParameters, getPageReference, getRenderCount, getSizeInBytes, getStatelessHint, hierarchyAsString, internalOnModelChanged, isBookmarkable, isErrorPage, isPageStateless, onBeforeRender, onDetach, onPageAttached, onRedirect, onRender, prepareForRender, renderPage, setFreezePageId, setNumericId, setStatelessHint, setWasCreatedBookmarkable, startComponentRender, toString, wasCreatedBookmarkable, writeReplace

Methods inherited from class org.apache.wicket.MarkupContainer

add, addOrReplace, autoAdd, contains, get, get, getAssociatedMarkup, getAssociatedMarkupStream, getMarkup, getMarkupStream, hasAssociatedMarkup, internalAdd, iterator, iterator, onComponentTagBody, onMarkupAttached, remove, remove, removeAll, renderAll, renderAssociatedMarkup, renderNext, replace, setDefaultModel, setMarkupStream, size, swap, toString, visitChildren, visitChildren

Methods inherited from class org.apache.wicket.Component

add, addStateChange, afterRender, beforeRender, callOnBeforeRenderIfNotVisible, canCallListenerInterface, checkComponentTag, checkComponentTagAttribute, checkHierarchyChange, configure, continueToOriginalDestination, debug, detach, detachBehaviors, detachModel, determineVisibility, error, exceptionMessage, fatal, findMarkupStream, findPage, findParent, findParentWithAssociatedMarkup, getApplication, getBehaviorById, getBehaviorId, getBehaviors, getBehaviors, getClassRelativePath, getConverter, getDefaultModel, getDefaultModelObject, getDefaultModelObjectAsString, getDefaultModelObjectAsString, getEscapeModelStrings, getFeedbackMessage, getFlag, getFlag, getInnermostModel, getInnermostModel, getLocale, getLocalizer, getMarkupAttributes, getMarkupId, getMarkupId, getMarkupIdFromMarkup, getMarkupIdImpl, getMetaData, getModelComparator, getOutputMarkupId, getOutputMarkupPlaceholderTag, getPage, getPageRelativePath, getParent, getPath, getRenderBodyOnly, getRequest, getRequestCycle, getResponse, getSession, getString, getString, getString, getStyle, getVariation, hasBeenRendered, hasErrorMessage, hasFeedbackMessage, info, initModel, isActionAuthorized, isAuto, isBehaviorAccepted, isEnableAllowed, isEnabled, isEnabledInHierarchy, isIgnoreAttributeModifier, isRenderAllowed, isStateless, isVersioned, isVisibilityAllowed, isVisible, isVisibleInHierarchy, locateMarkupStream, markRendering, modelChanged, modelChanging, onComponentTag, onConfigure, onEvent, onInitialize, onModelChanged, onModelChanging, onRemove, prepareForRender, redirectToInterceptPage, remove, remove, render, renderComponent, renderComponentTag, rendered, renderHead, renderHead, renderPlaceholderTag, replaceComponentTagBody, replaceWith, sameInnermostModel, sameInnermostModel, send, setAuto, setDefaultModelObject, setEnabled, setEscapeModelStrings, setFlag, setFlag, setIgnoreAttributeModifier, setMarkup, setMarkupId, setMarkupIdImpl, setMetaData, setOutputMarkupId, setOutputMarkupPlaceholderTag, setRenderBodyOnly, setResponsePage, setResponsePage, setResponsePage, setVersioned, setVisibilityAllowed, setVisible, urlFor, urlFor, urlFor, urlFor, urlFor, visitParents, warn, wrap

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.wicket.request.component.IRequestableComponent

canCallListenerInterface, detach, get, getBehaviorById, getBehaviorId, getPage, getPageRelativePath

Constructor Detail

WebPage

protected WebPage()

Constructor. Having this constructor public means that your page is 'bookmarkable' and hence can be called/ created from anywhere.

WebPage

protected WebPage(IModel<?> model)

See Also:

Page.Page(IModel)

WebPage

protected WebPage(PageParameters parameters)

Constructor which receives wrapped query string parameters for a request. Having this constructor public means that your page is 'bookmarkable' and hence can be called/ created from anywhere. For bookmarkable pages (as opposed to when you construct page instances yourself, this constructor will be used in preference to a no-arg constructor, if both exist. Note that nothing is done with the page parameters argument. This constructor is provided so that tools such as IDEs will include it their list of suggested constructors for derived classes. Please call this constructor (or the one with the pagemap) if you want to remember the pageparameters Page.getPageParameters(). So that they are reused for stateless links.

Parameters:

parameters - Wrapped query string parameters.

Method Detail

getMarkupType

public MarkupType getMarkupType()

Gets the markup type for a WebPage, which is "html" by default. Support for pages in another markup language, such as VXML, would require the creation of a different Page subclass in an appropriate package under org.apache.wicket.markup. To support VXML (voice markup), one might create the package org.apache.wicket.markup.vxml and a subclass of Page called VoicePage.

Overrides:

getMarkupType in class Page

Returns:

Markup type for HTML

See Also:

MarkupContainer.getMarkupType()

configureResponse

protected void configureResponse()

Description copied from class: Page

Set-up response with appropriate content type, locale and encoding. The locale is set equal to the session's locale. The content type header contains information about the markup type (@see #getMarkupType()) and the encoding. The response (and request) encoding is determined by an application setting (@see ApplicationSettings#getResponseRequestEncoding()). In addition, if the page's markup contains a xml declaration like <?xml ... ?> an xml declaration with proper encoding information is written to the output as well, provided it is not disabled by an application setting (@see ApplicationSettings#getStripXmlDeclarationFromOutput()).

Note: Prior to Wicket 1.1 the output encoding was determined by the page's markup encoding. Because this caused uncertainties about the /request/ encoding, it has been changed in favor of the new, much safer, approach. Please see the Wiki for more details.

Overrides:

configureResponse in class Page

See Also:

Page.configureResponse()

setHeaders

protected void setHeaders(WebResponse response)

Subclasses can override this to set there headers when the Page is being served. By default these headers are set:

 response.setHeader("Date", "[now]");
 response.setHeader("Expires", "[0]");
 response.setHeader("Pragma", "no-cache");
 response.setHeader("Cache-Control", "no-cache");
 

So if a Page wants to control this or doesn't want to set this info it should override this method and don't call super.

Parameters:

response - The WebResponse where set(Date)Header can be called on.

onAfterRender

protected void onAfterRender()

Description copied from class: Component

Called just after a component is rendered.

Overrides:

onAfterRender in class Page

See Also:

Component.onAfterRender()

homePageLink

protected final BookmarkablePageLink<Void> homePageLink(String id)

Creates and returns a bookmarkable link to this application's home page.

Parameters:

id - Name of link

Returns:

Link to home page for this application