org.springframework.web.portlet.mvc

Class AbstractWizardFormController

java.lang.Object

org.springframework.context.support.ApplicationObjectSupport

org.springframework.web.portlet.context.PortletApplicationObjectSupport

org.springframework.web.portlet.handler.PortletContentGenerator

org.springframework.web.portlet.mvc.AbstractController

org.springframework.web.portlet.mvc.BaseCommandController

org.springframework.web.portlet.mvc.AbstractFormController

org.springframework.web.portlet.mvc.AbstractWizardFormController

All Implemented Interfaces:

Aware, ApplicationContextAware, PortletContextAware, Controller

Deprecated.

as of Spring 3.0, in favor of annotated controllers

@Deprecated
public abstract class AbstractWizardFormController
extends AbstractFormController

Form controller for typical wizard-style workflows.

In contrast to classic forms, wizards have more than one form view page. Therefore, there are various actions instead of one single submit action:

• finish: trying to leave the wizard successfully, i.e. performing its final action, and thus needing a valid state;
• cancel: leaving the wizard without performing its final action, and thus without regard to the validity of its current state;
• page change: showing another wizard page, e.g. the next or previous one, with regard to "dirty back" and "dirty forward".

Finish and cancel actions can be triggered by request parameters, named PARAM_FINISH ("_finish") and PARAM_CANCEL ("_cancel"), ignoring parameter values to allow for HTML buttons. The target page for page changes can be specified by PARAM_TARGET, appending the page number to the parameter name (e.g. "_target1"). The action parameters are recognized when triggered by image buttons too (via "_finish.x", "_abort.x", or "_target1.x").

The current page number will be stored in the session. It can also be specified as request parameter PARAM_PAGE ("_page") in order to properly handle usage of the back button in a browser: In this case, a submission will always contain the correct page number, even if the user submitted from an old view.

The page can only be changed if it validates correctly, except if a "dirty back" or "dirty forward" is allowed. At finish, all pages get validated again to guarantee a consistent state.

Note that a validator's default validate method is not executed when using this class! Rather, the validatePage implementation should call special validateXXX methods that the validator needs to provide, validating certain pieces of the object. These can be combined to validate the elements of individual pages.

Note: Page numbering starts with 0, to be able to pass an array consisting of the corresponding view names to the "pages" bean property.

Parameters indicated with setPassRenderParameters will be present for each page. If there are render parameters you need in renderFinish or renderCancel, then you need to pass those forward from the processFinish or processCancel methods, respectively.

Since:

2.0

Author:

Juergen Hoeller, John A. Lewis

See Also:

setPages(java.lang.String[]), validatePage(java.lang.Object, org.springframework.validation.Errors, int, boolean), processFinish(ActionRequest, ActionResponse, java.lang.Object, org.springframework.validation.BindException), processCancel(ActionRequest, ActionResponse, java.lang.Object, org.springframework.validation.BindException)

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	allowDirtyBack Deprecated.
private boolean	allowDirtyForward Deprecated.
private java.lang.String	pageAttribute Deprecated.
private java.lang.String[]	pages Deprecated.
static java.lang.String	PARAM_CANCEL Deprecated. Parameter triggering the cancel action.
static java.lang.String	PARAM_FINISH Deprecated. Parameter triggering the finish action.
static java.lang.String	PARAM_PAGE Deprecated. Parameter specifying the current page as value.
static java.lang.String	PARAM_TARGET Deprecated. Parameter specifying the target page, appending the page number to the name.

Fields inherited from class org.springframework.web.portlet.mvc.BaseCommandController

DEFAULT_COMMAND_NAME

Fields inherited from class org.springframework.context.support.ApplicationObjectSupport

logger

Constructor Summary

Constructors

Constructor and Description
AbstractWizardFormController() Deprecated. Create a new AbstractWizardFormController.

Method Summary

Modifier and Type	Method and Description
protected int	getCurrentPage(PortletRequest request) Deprecated. Return the current page number.
protected int	getInitialPage(PortletRequest request) Deprecated. Return the initial page of the wizard, i.e.
protected int	getInitialPage(PortletRequest request, java.lang.Object command) Deprecated. Return the initial page of the wizard, i.e.
java.lang.String	getPageAttribute() Deprecated. Return the name of the page attribute in the model.
protected int	getPageCount() Deprecated. Return the number of wizard pages.
protected int	getPageCount(PortletRequest request, java.lang.Object command) Deprecated. Return the page count for this wizard form controller.
java.lang.String[]	getPages() Deprecated. Return the wizard pages, i.e.
protected java.lang.String	getPageSessionAttributeName() Deprecated. Return the name of the PortletSession attribute that holds the page object for this wizard form controller.
protected java.lang.String	getPageSessionAttributeName(PortletRequest request) Deprecated. Return the name of the PortletSession attribute that holds the page object for this wizard form controller.
protected int	getTargetPage(PortletRequest request, int currentPage) Deprecated. Return the target page specified in the request.
protected int	getTargetPage(PortletRequest request, java.lang.Object command, Errors errors, int currentPage) Deprecated. Return the target page specified in the request.
protected java.lang.String	getViewName(PortletRequest request, java.lang.Object command, int page) Deprecated. Return the name of the view for the specified page of this wizard form controller.
protected void	handleInvalidSubmit(ActionRequest request, ActionResponse response) Deprecated. Handle an invalid submit request, e.g.
boolean	isAllowDirtyBack() Deprecated. Return whether "dirty back" is allowed.
boolean	isAllowDirtyForward() Deprecated. Return whether "dirty forward" is allowed.
protected boolean	isCancelRequest(PortletRequest request) Deprecated. Determine whether the incoming request is a request to cancel the processing of the current form.
protected boolean	isFinishRequest(PortletRequest request) Deprecated. Determine whether the incoming request is a request to finish the processing of the current form.
protected boolean	isFormSubmission(PortletRequest request) Deprecated. Consider an explicit finish or cancel request as a form submission too.
protected void	onBindAndValidate(PortletRequest request, java.lang.Object command, BindException errors) Deprecated. Calls page-specific onBindAndValidate method.
protected void	onBindAndValidate(PortletRequest request, java.lang.Object command, BindException errors, int page) Deprecated. Callback for custom post-processing in terms of binding and validation.
protected void	postProcessPage(ActionRequest request, java.lang.Object command, Errors errors, int page) Deprecated. Post-process the given page after binding and validation, potentially updating its command object.
protected void	processCancel(ActionRequest request, ActionResponse response, java.lang.Object command, BindException errors) Deprecated. Template method for the action phase of the cancel action of this wizard.
protected void	processFinish(ActionRequest request, ActionResponse response, java.lang.Object command, BindException errors) Deprecated. Template method for the action phase of the finish action of this wizard.
protected void	processFormSubmission(ActionRequest request, ActionResponse response, java.lang.Object command, BindException errors) Deprecated. Apply wizard workflow: finish, cancel, page change.
protected java.util.Map	referenceData(PortletRequest request, int page) Deprecated. Create a reference data map for the given request, consisting of bean name/bean instance pairs as expected by ModelAndView.
protected java.util.Map	referenceData(PortletRequest request, java.lang.Object command, Errors errors) Deprecated. Calls page-specific referenceData method.
protected java.util.Map	referenceData(PortletRequest request, java.lang.Object command, Errors errors, int page) Deprecated. Create a reference data map for the given request, consisting of bean name/bean instance pairs as expected by ModelAndView.
protected ModelAndView	renderCancel(RenderRequest request, RenderResponse response, java.lang.Object command, BindException errors) Deprecated. Template method for the render phase of the cancel action of this wizard.
protected ModelAndView	renderFinish(RenderRequest request, RenderResponse response, java.lang.Object command, BindException errors) Deprecated. Template method for the render phase of the finish action of this wizard.
protected ModelAndView	renderFormSubmission(RenderRequest request, RenderResponse response, java.lang.Object command, BindException errors) Deprecated. Apply wizard workflow: finish, cancel, page change.
protected ModelAndView	renderInvalidSubmit(RenderRequest request, RenderResponse response) Deprecated. Handle an invalid submit request, e.g.
private ModelAndView	renderValidatePagesAndFinish(RenderRequest request, RenderResponse response, java.lang.Object command, BindException errors, int currentPage) Deprecated. Validate all pages and process finish.
void	setAllowDirtyBack(boolean allowDirtyBack) Deprecated. Set if "dirty back" is allowed, i.e.
void	setAllowDirtyForward(boolean allowDirtyForward) Deprecated. Set if "dirty forward" is allowed, i.e.
protected void	setCancelRenderParameter(ActionRequest request, ActionResponse response) Deprecated. Pass the the parameter that indicates a cancel request forward to the render phase.
protected void	setFinishRenderParameter(ActionRequest request, ActionResponse response) Deprecated. Pass the the parameter that indicates a finish request forward to the render phase.
void	setPageAttribute(java.lang.String pageAttribute) Deprecated. Set the name of the page attribute in the model, containing an Integer with the current page number.
protected void	setPageRenderParameter(ActionResponse response, int page) Deprecated. Pass the page number to the render phase by setting a render parameter.
void	setPages(java.lang.String[] pages) Deprecated. Set the wizard pages, i.e.
protected void	setTargetRenderParameter(ActionRequest request, ActionResponse response) Deprecated. Pass the the parameter that indicates the target page of the request forward to the render phase.
protected ModelAndView	showForm(RenderRequest request, RenderResponse response, BindException errors) Deprecated. Show the first page as form view.
protected ModelAndView	showPage(RenderRequest request, BindException errors, int page) Deprecated. Prepare the form model and view, including reference and error data, for the given page.
protected void	validatePage(java.lang.Object command, Errors errors, int page) Deprecated. Template method for custom validation logic for individual pages.
protected void	validatePage(java.lang.Object command, Errors errors, int page, boolean finish) Deprecated. Template method for custom validation logic for individual pages.
private void	validatePagesAndFinish(ActionRequest request, ActionResponse response, java.lang.Object command, BindException errors, int currentPage) Deprecated. Validate all pages and process finish.

Methods inherited from class org.springframework.web.portlet.mvc.AbstractFormController

formBackingObject, getCommand, getErrorsForNewForm, getFormSessionAttributeName, getFormSessionAttributeName, getFormSubmitParameterName, getInvalidSubmitParameterName, getRenderParameters, handleActionRequestInternal, handleRenderRequestInternal, isBindOnNewForm, isInvalidSubmission, isRedirectAction, isSessionForm, onBindOnNewForm, onBindOnNewForm, passRenderParameters, setBindOnNewForm, setFormSubmit, setInvalidSubmit, setRedirectAction, setRenderParameters, setSessionForm, showForm, showForm, showNewForm

Methods inherited from class org.springframework.web.portlet.mvc.BaseCommandController

bindAndValidate, checkCommand, createBinder, createCommand, getBindingErrorProcessor, getCommandClass, getCommandName, getMessageCodesResolver, getPropertyEditorRegistrars, getRenderCommand, getRenderCommandSessionAttributeName, getRenderErrors, getRenderErrorsSessionAttributeName, getValidator, getValidators, getWebBindingInitializer, initApplicationContext, initBinder, isValidateOnBinding, onBind, onBind, prepareBinder, setBindingErrorProcessor, setCommandClass, setCommandName, setMessageCodesResolver, setPropertyEditorRegistrar, setPropertyEditorRegistrars, setRenderCommandAndErrors, setValidateOnBinding, setValidator, setValidators, setWebBindingInitializer, suppressBinding, suppressValidation, useDirectFieldAccess

Methods inherited from class org.springframework.web.portlet.mvc.AbstractController

handleActionRequest, handleRenderRequest, isRenderWhenMinimized, isSynchronizeOnSession, setRenderWhenMinimized, setSynchronizeOnSession

Methods inherited from class org.springframework.web.portlet.handler.PortletContentGenerator

applyCacheSeconds, cacheForSeconds, check, checkAndPrepare, checkAndPrepare, getCacheSeconds, isRequireSession, preventCaching, setCacheSeconds, setRequireSession

Methods inherited from class org.springframework.web.portlet.context.PortletApplicationObjectSupport

getPortletContext, getTempDir, isContextRequired, setPortletContext

Methods inherited from class org.springframework.context.support.ApplicationObjectSupport

getApplicationContext, getMessageSourceAccessor, initApplicationContext, requiredContextClass, setApplicationContext

Methods inherited from class java.lang.Object

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

Field Detail

PARAM_FINISH

public static final java.lang.String PARAM_FINISH

Deprecated.

Parameter triggering the finish action. Can be called from any wizard page!

See Also:

Constant Field Values

PARAM_CANCEL

public static final java.lang.String PARAM_CANCEL

Deprecated.

Parameter triggering the cancel action. Can be called from any wizard page!

See Also:

Constant Field Values

PARAM_TARGET

public static final java.lang.String PARAM_TARGET

Deprecated.

Parameter specifying the target page, appending the page number to the name.

See Also:

Constant Field Values

PARAM_PAGE

public static final java.lang.String PARAM_PAGE

Deprecated.

Parameter specifying the current page as value. Not necessary on form pages, but allows to properly handle usage of the back button.

See Also:

setPageAttribute(java.lang.String), Constant Field Values

pages

private java.lang.String[] pages

Deprecated.

pageAttribute

private java.lang.String pageAttribute

Deprecated.

allowDirtyBack

private boolean allowDirtyBack

Deprecated.

allowDirtyForward

private boolean allowDirtyForward

Deprecated.

Constructor Detail

AbstractWizardFormController

public AbstractWizardFormController()

Deprecated.

Create a new AbstractWizardFormController.

"sessionForm" is automatically turned on, "validateOnBinding" turned off, and "cacheSeconds" set to 0 by the base class (-> no caching for all form controllers).

Method Detail

setPages

public final void setPages(java.lang.String[] pages)

Deprecated.

Set the wizard pages, i.e. the view names for the pages. The array index is interpreted as page number.

Parameters:

pages - view names for the pages

getPages

public final java.lang.String[] getPages()

Deprecated.

Return the wizard pages, i.e. the view names for the pages. The array index corresponds to the page number.

Note that a concrete wizard form controller might override getViewName(PortletRequest, Object, int) to determine the view name for each page dynamically.

See Also:

getViewName(PortletRequest, Object, int)

getPageCount

protected final int getPageCount()

Deprecated.

Return the number of wizard pages. Useful to check whether the last page has been reached.

Note that a concrete wizard form controller might override getPageCount(PortletRequest, Object) to determine the page count dynamically.

See Also:

getPageCount(PortletRequest, Object)

setPageAttribute

public final void setPageAttribute(java.lang.String pageAttribute)

Deprecated.

Set the name of the page attribute in the model, containing an Integer with the current page number.

This will be necessary for single views rendering multiple view pages. It also allows for specifying the optional "_page" parameter.

Parameters:

pageAttribute - name of the page attribute

See Also:

PARAM_PAGE

getPageAttribute

public final java.lang.String getPageAttribute()

Deprecated.

Return the name of the page attribute in the model.

setAllowDirtyBack

public final void setAllowDirtyBack(boolean allowDirtyBack)

Deprecated.

Set if "dirty back" is allowed, i.e. if moving to a former wizard page is allowed in case of validation errors for the current page.

Parameters:

allowDirtyBack - if "dirty back" is allowed

isAllowDirtyBack

public final boolean isAllowDirtyBack()

Deprecated.

Return whether "dirty back" is allowed.

setAllowDirtyForward

public final void setAllowDirtyForward(boolean allowDirtyForward)

Deprecated.

Set if "dirty forward" is allowed, i.e. if moving to a later wizard page is allowed in case of validation errors for the current page.

Parameters:

allowDirtyForward - if "dirty forward" is allowed

isAllowDirtyForward

public final boolean isAllowDirtyForward()

Deprecated.

Return whether "dirty forward" is allowed.

onBindAndValidate

protected final void onBindAndValidate(PortletRequest request,
                                       java.lang.Object command,
                                       BindException errors)
                                throws java.lang.Exception

Deprecated.

Calls page-specific onBindAndValidate method.

Overrides:

onBindAndValidate in class BaseCommandController

Parameters:

request - current portlet request

command - the command object, still allowing for further binding

errors - validation errors holder, allowing for additional custom validation

Throws:

java.lang.Exception - in case of invalid state or arguments

See Also:

BaseCommandController.bindAndValidate(PortletRequest, java.lang.Object), Errors

onBindAndValidate

protected void onBindAndValidate(PortletRequest request,
                                 java.lang.Object command,
                                 BindException errors,
                                 int page)
                          throws java.lang.Exception

Deprecated.

Callback for custom post-processing in terms of binding and validation. Called on each submit, after standard binding but before page-specific validation of this wizard form controller.

Note: AbstractWizardFormController does not perform standard validation on binding but rather applies page-specific validation on processing the form submission.

Parameters:

request - current portlet request

command - bound command

errors - Errors instance for additional custom validation

page - current wizard page

Throws:

java.lang.Exception - in case of invalid state or arguments

See Also:

BaseCommandController.bindAndValidate(PortletRequest, java.lang.Object), processFormSubmission(ActionRequest, ActionResponse, java.lang.Object, org.springframework.validation.BindException), Errors

isFormSubmission

protected boolean isFormSubmission(PortletRequest request)

Deprecated.

Consider an explicit finish or cancel request as a form submission too.

Overrides:

isFormSubmission in class AbstractFormController

Parameters:

request - current request

Returns:

if the request represents a form submission

See Also:

isFinishRequest(PortletRequest), isCancelRequest(PortletRequest)

referenceData

protected final java.util.Map referenceData(PortletRequest request,
                                            java.lang.Object command,
                                            Errors errors)
                                     throws java.lang.Exception

Deprecated.

Calls page-specific referenceData method.

Overrides:

referenceData in class AbstractFormController

Parameters:

request - current render request

command - form object with request parameters bound onto it

errors - validation errors holder

Returns:

a Map with reference data entries, or null if none

Throws:

java.lang.Exception - in case of invalid state or arguments

See Also:

ModelAndView

referenceData

protected java.util.Map referenceData(PortletRequest request,
                                      java.lang.Object command,
                                      Errors errors,
                                      int page)
                               throws java.lang.Exception

Deprecated.

Create a reference data map for the given request, consisting of bean name/bean instance pairs as expected by ModelAndView.

The default implementation delegates to referenceData(PortletRequest, int). Subclasses can override this to set reference data used in the view.

Parameters:

request - current portlet request

command - form object with request parameters bound onto it

errors - validation errors holder

page - current wizard page

Returns:

a Map with reference data entries, or null if none

Throws:

java.lang.Exception - in case of invalid state or arguments

See Also:

referenceData(PortletRequest, int), ModelAndView

referenceData

protected java.util.Map referenceData(PortletRequest request,
                                      int page)
                               throws java.lang.Exception

Deprecated.

Create a reference data map for the given request, consisting of bean name/bean instance pairs as expected by ModelAndView.

The default implementation returns null. Subclasses can override this to set reference data used in the view.

Parameters:

request - current portlet request

page - current wizard page

Returns:

a Map with reference data entries, or null if none

Throws:

java.lang.Exception - in case of invalid state or arguments

See Also:

ModelAndView

showForm

protected ModelAndView showForm(RenderRequest request,
                                RenderResponse response,
                                BindException errors)
                         throws java.lang.Exception

Deprecated.

Show the first page as form view.

This can be overridden in subclasses, e.g. to prepare wizard-specific error views in case of an Exception.

Specified by:

showForm in class AbstractFormController

Parameters:

request - current render request

response - current render response

errors - validation errors holder

Returns:

the prepared form view, or null if handled directly

Throws:

java.lang.Exception - in case of invalid state or arguments

See Also:

AbstractFormController.showForm(RenderRequest, BindException, String), Errors, BindException.getModel(), AbstractFormController.referenceData(PortletRequest, Object, Errors), SimpleFormController.setFormView(java.lang.String)

showPage

protected final ModelAndView showPage(RenderRequest request,
                                      BindException errors,
                                      int page)
                               throws java.lang.Exception

Deprecated.

Prepare the form model and view, including reference and error data, for the given page. Can be used in processFinish implementations, to show the corresponding page in case of validation errors.

Parameters:

request - current portlet render request

errors - validation errors holder

page - number of page to show

Returns:

the prepared form view

Throws:

java.lang.Exception - in case of invalid state or arguments

getPageCount

protected int getPageCount(PortletRequest request,
                           java.lang.Object command)

Deprecated.

Return the page count for this wizard form controller.

The default implementation delegates to getPageCount(). Can be overridden to dynamically adapt the page count.

Parameters:

request - current portlet request

command - the command object as returned by formBackingObject

Returns:

the current page count

See Also:

getPageCount()

getViewName

protected java.lang.String getViewName(PortletRequest request,
                                       java.lang.Object command,
                                       int page)

Deprecated.

Return the name of the view for the specified page of this wizard form controller.

The default implementation takes the view name from the getPages() array. Can be overridden to dynamically switch the page view or to return view names for dynamically defined pages.

Parameters:

request - current portlet request

command - the command object as returned by formBackingObject

Returns:

the current page count

See Also:

getPageCount()

getInitialPage

protected int getInitialPage(PortletRequest request,
                             java.lang.Object command)

Deprecated.

Return the initial page of the wizard, i.e. the page shown at wizard startup.

The default implementation delegates to getInitialPage(PortletRequest).

Parameters:

request - current portlet request

command - the command object as returned by formBackingObject

Returns:

the initial page number

See Also:

getInitialPage(PortletRequest), AbstractFormController.formBackingObject(PortletRequest)

getInitialPage

protected int getInitialPage(PortletRequest request)

Deprecated.

Return the initial page of the wizard, i.e. the page shown at wizard startup.

The default implementation returns 0 for first page.

Parameters:

request - current portlet request

Returns:

the initial page number

getPageSessionAttributeName

protected java.lang.String getPageSessionAttributeName(PortletRequest request)

Deprecated.

Return the name of the PortletSession attribute that holds the page object for this wizard form controller.

The default implementation delegates to the getPageSessionAttributeName version without arguments.

Parameters:

request - current portlet request

Returns:

the name of the form session attribute, or null if not in session form mode

See Also:

getPageSessionAttributeName(PortletRequest), AbstractFormController.getFormSessionAttributeName(PortletRequest), javax.portlet.PortletSession#getAttribute

getPageSessionAttributeName

protected java.lang.String getPageSessionAttributeName()

Deprecated.

Return the name of the PortletSession attribute that holds the page object for this wizard form controller.

Default is an internal name, of no relevance to applications, as the form session attribute is not usually accessed directly. Can be overridden to use an application-specific attribute name, which allows other code to access the session attribute directly.

Returns:

the name of the page session attribute

See Also:

AbstractFormController.getFormSessionAttributeName(PortletRequest), javax.portlet.PortletSession#getAttribute

setPageRenderParameter

protected void setPageRenderParameter(ActionResponse response,
                                      int page)

Deprecated.

Pass the page number to the render phase by setting a render parameter. This method may not be called when the action calls javax.portlet.ActionResponse#sendRedirect(String).

Parameters:

response - the current action response

page - the page number

See Also:

ActionResponse#setRenderParameter

setTargetRenderParameter

protected void setTargetRenderParameter(ActionRequest request,
                                        ActionResponse response)

Deprecated.

Pass the the parameter that indicates the target page of the request forward to the render phase. If the getTargetPage method was overridden, this may need to be overriden as well.

Parameters:

request - the current action request

response - the current action response

See Also:

PARAM_TARGET, getTargetPage(PortletRequest, int), getTargetPage(PortletRequest, Object, Errors, int), ActionResponse#setRenderParameter

setFinishRenderParameter

protected void setFinishRenderParameter(ActionRequest request,
                                        ActionResponse response)

Deprecated.

Pass the the parameter that indicates a finish request forward to the render phase. If the isFinishRequest method was overridden, this may need to be overriden as well.

Parameters:

request - the current action request

response - the current action response

See Also:

PARAM_FINISH, isFinishRequest(PortletRequest), ActionResponse#setRenderParameter

setCancelRenderParameter

protected void setCancelRenderParameter(ActionRequest request,
                                        ActionResponse response)

Deprecated.

Pass the the parameter that indicates a cancel request forward to the render phase. If the isCancelRequest method was overridden, this may need to be overriden as well.

Parameters:

request - the current action request

response - the current action response

See Also:

PARAM_CANCEL, isCancelRequest(PortletRequest), ActionResponse#setRenderParameter

renderInvalidSubmit

protected ModelAndView renderInvalidSubmit(RenderRequest request,
                                           RenderResponse response)
                                    throws java.lang.Exception

Deprecated.

Handle an invalid submit request, e.g. when in session form mode but no form object was found in the session (like in case of an invalid resubmit by the browser).

The default implementation for wizard form controllers simply shows the initial page of a new wizard form. If you want to show some "invalid submit" message, you need to override this method.

Overrides:

renderInvalidSubmit in class AbstractFormController

Parameters:

request - current portlet render request

response - current portlet render response

Returns:

a prepared view, or null if handled directly

Throws:

java.lang.Exception - in case of errors

See Also:

AbstractFormController.showNewForm(RenderRequest, RenderResponse), AbstractFormController.setBindOnNewForm(boolean), handleInvalidSubmit(ActionRequest, ActionResponse)

handleInvalidSubmit

protected void handleInvalidSubmit(ActionRequest request,
                                   ActionResponse response)
                            throws java.lang.Exception

Deprecated.

Handle an invalid submit request, e.g. when in session form mode but no form object was found in the session (like in case of an invalid resubmit by the browser).

The default implementation for wizard form controllers simply shows the initial page of a new wizard form, so here in the action phase this method does nothing. If you want to take some action on an invalid submit, you need to override this method.

Overrides:

handleInvalidSubmit in class AbstractFormController

Parameters:

request - current portlet action request

response - current portlet action response

Throws:

java.lang.Exception - in case of errors

See Also:

renderInvalidSubmit(RenderRequest, RenderResponse)

renderFormSubmission

protected final ModelAndView renderFormSubmission(RenderRequest request,
                                                  RenderResponse response,
                                                  java.lang.Object command,
                                                  BindException errors)
                                           throws java.lang.Exception

Deprecated.

Apply wizard workflow: finish, cancel, page change.

Specified by:

renderFormSubmission in class AbstractFormController

Parameters:

request - current render request

response - current render response

command - form object with request parameters bound onto it

errors - errors holder

Returns:

the prepared model and view, or null

Throws:

java.lang.Exception - in case of errors

See Also:

processFormSubmission(ActionRequest, ActionResponse, java.lang.Object, org.springframework.validation.BindException)

processFormSubmission

protected final void processFormSubmission(ActionRequest request,
                                           ActionResponse response,
                                           java.lang.Object command,
                                           BindException errors)
                                    throws java.lang.Exception

Deprecated.

Apply wizard workflow: finish, cancel, page change.

Specified by:

processFormSubmission in class AbstractFormController

Parameters:

request - current action request

response - current action response

command - form object with request parameters bound onto it

errors - errors holder (subclass can add errors if it wants to)

Throws:

java.lang.Exception - in case of errors

See Also:

renderFormSubmission(RenderRequest, RenderResponse, java.lang.Object, org.springframework.validation.BindException)

getCurrentPage

protected int getCurrentPage(PortletRequest request)

Deprecated.

Return the current page number. Used by processFormSubmission(ActionRequest, ActionResponse, java.lang.Object, org.springframework.validation.BindException).

The default implementation checks the page session attribute. Subclasses can override this for customized page determination.

Parameters:

request - current portlet request

Returns:

the current page number

See Also:

getPageSessionAttributeName()

isFinishRequest

protected boolean isFinishRequest(PortletRequest request)

Deprecated.

Determine whether the incoming request is a request to finish the processing of the current form.

By default, this method returns true if a parameter matching the "_finish" key is present in the request, otherwise it returns false. Subclasses may override this method to provide custom logic to detect a finish request.

The parameter is recognized both when sent as a plain parameter ("_finish") or when triggered by an image button ("_finish.x").

Parameters:

request - current portlet request

Returns:

whether the request indicates to finish form processing

See Also:

PARAM_FINISH

isCancelRequest

protected boolean isCancelRequest(PortletRequest request)

Deprecated.

Determine whether the incoming request is a request to cancel the processing of the current form.

By default, this method returns true if a parameter matching the "_cancel" key is present in the request, otherwise it returns false. Subclasses may override this method to provide custom logic to detect a cancel request.

The parameter is recognized both when sent as a plain parameter ("_cancel") or when triggered by an image button ("_cancel.x").

Parameters:

request - current portlet request

Returns:

whether the request indicates to cancel form processing

See Also:

PARAM_CANCEL

getTargetPage

protected int getTargetPage(PortletRequest request,
                            java.lang.Object command,
                            Errors errors,
                            int currentPage)

Deprecated.

Return the target page specified in the request.

The default implementation delegates to getTargetPage(PortletRequest, int). Subclasses can override this for customized target page determination.

Parameters:

request - current portlet request

command - form object with request parameters bound onto it

errors - validation errors holder

currentPage - the current page, to be returned as fallback if no target page specified

Returns:

the page specified in the request, or current page if not found

See Also:

getTargetPage(PortletRequest, int)

getTargetPage

protected int getTargetPage(PortletRequest request,
                            int currentPage)

Deprecated.

Return the target page specified in the request.

The default implementation examines "_target" parameter (e.g. "_target1"). Subclasses can override this for customized target page determination.

Parameters:

request - current portlet request

currentPage - the current page, to be returned as fallback if no target page specified

Returns:

the page specified in the request, or current page if not found

See Also:

PARAM_TARGET

renderValidatePagesAndFinish

private ModelAndView renderValidatePagesAndFinish(RenderRequest request,
                                                  RenderResponse response,
                                                  java.lang.Object command,
                                                  BindException errors,
                                                  int currentPage)
                                           throws java.lang.Exception

Deprecated.

Validate all pages and process finish. If there are page validation errors, show the corresponding view page.

Throws:

java.lang.Exception

See Also:

validatePagesAndFinish(ActionRequest, ActionResponse, java.lang.Object, org.springframework.validation.BindException, int)

validatePagesAndFinish

private void validatePagesAndFinish(ActionRequest request,
                                    ActionResponse response,
                                    java.lang.Object command,
                                    BindException errors,
                                    int currentPage)
                             throws java.lang.Exception

Deprecated.

Validate all pages and process finish. If there are page validation errors, show the corresponding view page.

Throws:

java.lang.Exception

See Also:

renderValidatePagesAndFinish(RenderRequest, RenderResponse, java.lang.Object, org.springframework.validation.BindException, int)

validatePage

protected void validatePage(java.lang.Object command,
                            Errors errors,
                            int page,
                            boolean finish)

Deprecated.

Template method for custom validation logic for individual pages. The default implementation calls validatePage(command, errors, page).

Implementations will typically call fine-granular validateXXX methods of this instance's Validator, combining them to validation of the corresponding pages. The Validator's default validate method will not be called by a wizard form controller!

Parameters:

command - form object with the current wizard state

errors - validation errors holder

page - number of page to validate

finish - whether this method is called during final revalidation on finish (else, it is called for validating the current page)

See Also:

validatePage(Object, Errors, int), Validator.validate(java.lang.Object, org.springframework.validation.Errors)

validatePage

protected void validatePage(java.lang.Object command,
                            Errors errors,
                            int page)

Deprecated.

Template method for custom validation logic for individual pages. The default implementation is empty.

Implementations will typically call fine-granular validateXXX methods of this instance's validator, combining them to validation of the corresponding pages. The validator's default validate method will not be called by a wizard form controller!

Parameters:

command - form object with the current wizard state

errors - validation errors holder

page - number of page to validate

See Also:

Validator.validate(java.lang.Object, org.springframework.validation.Errors)

postProcessPage

protected void postProcessPage(ActionRequest request,
                               java.lang.Object command,
                               Errors errors,
                               int page)
                        throws java.lang.Exception

Deprecated.

Post-process the given page after binding and validation, potentially updating its command object. The passed-in request might contain special parameters sent by the page.

Only invoked when displaying another page or the same page again, not when finishing or cancelling.

Parameters:

request - current action request

command - form object with request parameters bound onto it

errors - validation errors holder

page - number of page to post-process

Throws:

java.lang.Exception - in case of invalid state or arguments

renderFinish

protected ModelAndView renderFinish(RenderRequest request,
                                    RenderResponse response,
                                    java.lang.Object command,
                                    BindException errors)
                             throws java.lang.Exception

Deprecated.

Template method for the render phase of the finish action of this wizard.

The default implementation throws a PortletException, saying that a finish render request is not supported by this controller. Thus, you do not need to implement this template method if you do not need to render after a finish.

Call errors.getModel() to populate the ModelAndView model with the command and the Errors instance, under the specified command name, as expected by the "spring:bind" tag.

Parameters:

request - current portlet render request

response - current portlet render response

command - form object with the current wizard state

errors - validation errors holder

Returns:

the finish view

Throws:

java.lang.Exception - in case of invalid state or arguments

See Also:

processFinish(ActionRequest, ActionResponse, java.lang.Object, org.springframework.validation.BindException), Errors, BindException.getModel()

processFinish

protected void processFinish(ActionRequest request,
                             ActionResponse response,
                             java.lang.Object command,
                             BindException errors)
                      throws java.lang.Exception

Deprecated.

Template method for the action phase of the finish action of this wizard.

The default implementation throws a PortletException, saying that a finish action request is not supported by this controller. You will almost certainly need to override this method.

Parameters:

request - current portlet action request

response - current portlet action response

command - form object with the current wizard state

errors - validation errors holder

Throws:

java.lang.Exception - in case of invalid state or arguments

See Also:

renderFinish(RenderRequest, RenderResponse, java.lang.Object, org.springframework.validation.BindException), Errors

renderCancel

protected ModelAndView renderCancel(RenderRequest request,
                                    RenderResponse response,
                                    java.lang.Object command,
                                    BindException errors)
                             throws java.lang.Exception

Deprecated.

Template method for the render phase of the cancel action of this wizard.

The default implementation throws a PortletException, saying that a cancel render request is not supported by this controller. Thus, you do not need to implement this template method if you do not support a cancel operation.

Call errors.getModel() to populate the ModelAndView model with the command and the Errors instance, under the specified command name, as expected by the "spring:bind" tag.

Parameters:

request - current portlet render request

response - current portlet render response

command - form object with the current wizard state

errors - Errors instance containing errors

Returns:

the cancellation view

Throws:

java.lang.Exception - in case of invalid state or arguments

See Also:

processCancel(ActionRequest, ActionResponse, java.lang.Object, org.springframework.validation.BindException), Errors, BindException.getModel()

processCancel

protected void processCancel(ActionRequest request,
                             ActionResponse response,
                             java.lang.Object command,
                             BindException errors)
                      throws java.lang.Exception

Deprecated.

Template method for the action phase of the cancel action of this wizard.

The default implementation throws a PortletException, saying that a cancel action request is not supported by this controller. Thus, you do not need to implement this template method if you do not support a cancel operation.

Parameters:

request - current portlet action request

response - current portlet action response

command - form object with the current wizard state

errors - Errors instance containing errors

Throws:

java.lang.Exception - in case of invalid state or arguments

See Also:

renderCancel(RenderRequest, RenderResponse, java.lang.Object, org.springframework.validation.BindException), Errors