From adffaces-user-return-2675-apmail-incubator-adffaces-user-archive=incubator.apache.org@incubator.apache.org Mon Apr 09 17:03:54 2007 Return-Path: Delivered-To: apmail-incubator-adffaces-user-archive@locus.apache.org Received: (qmail 69546 invoked from network); 9 Apr 2007 17:03:54 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 9 Apr 2007 17:03:54 -0000 Received: (qmail 82160 invoked by uid 500); 9 Apr 2007 17:03:59 -0000 Delivered-To: apmail-incubator-adffaces-user-archive@incubator.apache.org Received: (qmail 82146 invoked by uid 500); 9 Apr 2007 17:03:59 -0000 Mailing-List: contact adffaces-user-help@incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: adffaces-user@incubator.apache.org Delivered-To: mailing list adffaces-user@incubator.apache.org Received: (qmail 82137 invoked by uid 99); 9 Apr 2007 17:03:59 -0000 Received: from herse.apache.org (HELO herse.apache.org) (140.211.11.133) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 09 Apr 2007 10:03:59 -0700 X-ASF-Spam-Status: No, hits=0.0 required=10.0 tests= X-Spam-Check-By: apache.org Received-SPF: pass (herse.apache.org: local policy) Received: from [192.234.253.30] (HELO nemours.org) (192.234.253.30) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 09 Apr 2007 10:03:52 -0700 Received: from nemapp38.nemours.org ([172.19.10.55]) by nemours.org with Microsoft SMTPSVC(5.0.2195.6713); Mon, 9 Apr 2007 13:04:54 -0400 Received: from 10.20.11.90 by nemapp38.nemours.org with ESMTP (SMTP Relay); Mon, 09 Apr 2007 13:03:45 -0400 X-Server-Uuid: 35EBC2B0-EA10-409F-9923-04DFACBAF8D2 Received: from jaxmsx02.nemours.org ([10.20.9.25]) by nemmsx01.nemours.org with Microsoft SMTPSVC(5.0.2195.6713); Mon, 9 Apr 2007 13:03:13 -0400 Content-class: urn:content-classes:message MIME-Version: 1.0 X-MimeOLE: Produced By Microsoft Exchange V6.5 Subject: RE: Keeping selectOneChoice selection Date: Mon, 9 Apr 2007 13:03:12 -0400 Message-ID: <5B930A45C354E84395A194D500589ED80DBE48@jaxmsx02.nemours.org> In-Reply-To: <37858.194.65.31.9.1176138026.squirrel@www.opensoft.pt> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Keeping selectOneChoice selection Thread-Index: Acd6yIcEYbliuneDTuqVpS0gqyEgbgAADJQg From: "William Hoover" To: adffaces-user@incubator.apache.org X-OriginalArrivalTime: 09 Apr 2007 17:03:13.0077 (UTC) FILETIME=[F54B9E50:01C77AC8] X-WSS-ID: 6A04AE7B1NS50962-01-01 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable X-Brightmail-Tracker: AAAAAwAAA+0AAAPsAAAD7g== X-Language-Identified: TRUE X-Virus-Checked: Checked by ClamAV on apache.org Francisco, Sure... Can you send the jsf code and the html rendered on the client = page? -----Original Message----- From: Francisco Passos [mailto:francisco.passos@opensoft.pt] Sent: Monday, April 09, 2007 1:00 PM To: adffaces-user@incubator.apache.org Subject: RE: Keeping selectOneChoice selection Thank you for your hints. I will bear this in mind when I come to this situation - which will be soon enough. However, back to this this particular scenario where no table is = involved, do you know of any way I manage to solve this problem? > Francisco, > > I have found that there is a fundamental problem with how > UINamingContainers are processed when row indexes are inserted into = the > ids of EditableValueHolders within the container rows. > > Understanding The Problem: > As you may already know, tables have only columns referenced in the = page > so it can handle an almost infinite number of rows. Well, because you = have > only specified an id for a component within the table column the = component > inserts a row index reference in the holders id (via getClientRowKey() = in > a table) for each row. This ensures that each iteration of that row = has a > unique id. The problem with this is that in some cases this breaks > automatic setting of bean values (if they are value bound to an > EditableValueHolder within a row). Another issue is that = "selectOneChoice" > components in particular do not have a mechanism in place to ensure = that a > submitted value that gets set on the component is one of the values = within > the internal "SelectItemList" so virtually any value can get set on = it. If > the submitted value is not in the list it adds a blank entry in the = drop > down menu- what? I have also noticed that selectOneChoice component = does > not handle value conversion like regular input text components do. > Semi-primitive values such as Integers, Booleans, etc. are not = converted > automatically like they are for regular input text components. I had = some > of the same issues with the "detailStamp" so I created an extended = table > component that allows only one toggled "detailStamp" at a time and > overrides the "getClientRowKey()" excluding row indexes for components > within the "detailStamp". This solution works very well, but still = does > not address EditableValueHolders within the rows themselves. It seems = to > me that we need to reevaluate the usage of inserting row indexes into = ids! > > Possible Solutions: > The first thing I would check is that you have the = valuePassThru=3D"true" to > ensure that its not trying to use the index as the passed value (not = sure > why anyone would want to be restricted to just an index). If want to > ensure that your value is never set to a value that does not exist in = the > options you can use a value change listener: > > > /** > * Verifies that an editable value holder event components value is a > valid > * option. If it is not it sets it back to the old value. > * > * @see #getEditableValueHolderValue(EditableValueHolder) > * @param event > */ > public final void verifyValueOption(ValueChangeEvent event) { > try { > if (event.getComponent() instanceof EditableValueHolder) { > EditableValueHolder valueHolder =3D (EditableValueHolder) event > .getComponent(); > if (!isValidSelectOption(event.getComponent(), = event.getNewValue())) { > // invalid option- regress to old value > valueHolder.setValue(event.getOldValue()); > valueHolder.setSubmittedValue(event.getOldValue()); > } > } > } catch (Throwable e) { > log.warn("Unable to verify select value. " + e.getMessage() > + " cause: " + e.getCause()); > } > } > > /** > * Determines if the specified value is a valid selection option in = the > * specified select component. > * > * @param component > * @param value > * @return is the specified value a valid select option > */ > public static final boolean isValidSelectOption(UIComponent = component, > Object value) { > try { > List items =3D SelectItemSupport.getSelectItems( > component, SelectItemSupport.getConverter(component)); > for (SelectItem item : items) { > if (item.getValue() !=3D null && item.getValue().equals(value)) { > return true; > } > } > } catch (Exception e) { > _LOG.warning("Unable to determine if the specified value: " + value > + " is valid for the select component: " + component); > } > return false; > } > > > > Probably not the most elegant solution, but nonetheless an effective = one > is to manage the submitted row index problems yourself. If nothing = else > this will provide you with a debugging tool to determine if the row = index > references are preventing your values from getting set: > /** > *

> * Gets a parameter value from the request scope by an editale value > holder > * components id. This method will set/return the holders submitted = value > * from the request. > *

> *

> * The holders client id is checked against a possible matching id > request > * parameter. The client id of the holder and the request parameter > matching > * the hodler id may have their own row indexing (such is the case = with a > * select menu). > *

    > *
  1. The client id against the request parameter
    2. > *
  2. The client id w/o row index against the request parameter
    3. > *
  3. The client id against the request parameter w/o row index
    4. > *
> *

> * > * @param context > * @param holder > * @return the parameter value > */ > @SuppressWarnings("unchecked") > public static final Object getRequestParameterByHolderId( > FacesContext context, EditableValueHolder holder) { > if (log.isDebugEnabled()) > log.debug("getRequestParameterForNamingContainer(" + context + ',' > + holder + ")"); > if (holder !=3D null && holder instanceof UIComponent) { > String clientId =3D ((UIComponent) holder).getClientId(context); > String clientIdWithOutRowIds =3D removeRowIdReferences(clientId); > String id =3D ((UIComponent) holder).getId(); > Map map =3D context.getExternalContext() > .getRequestParameterMap(); > if (map !=3D null && map.entrySet() !=3D null) { > for (Map.Entry entry : map.entrySet()) { > if (entry.getKey().indexOf(id) >=3D 0) { > if (entry.getKey().equalsIgnoreCase(clientId) > || entry.getKey().equalsIgnoreCase( > clientIdWithOutRowIds) > || removeRowIdReferences( > entry.getKey()).equalsIgnoreCase( > clientId)) { > try { > setConvertedAndValidatedValue(context, > holder, entry.getValue()); > } catch (Exception e) { > log.error("Unable to capture the converted " > + "value for component(" + holder > + ") value: " + entry.getValue(), e); > } > return holder.getSubmittedValue(); > } > } > } > } > } > return null; > } > > /** > * Removes any row id references that may exist within the specified > client > * id > * > * @param clientId > * @return the client id > */ > public static final String removeRowIdReferences(String clientId) { > if (log.isDebugEnabled()) > log.debug("removeRowIdReferences(" + clientId + ')'); > if (clientId !=3D null) { > String[] ids =3D clientId.split(String > .valueOf(NamingContainer.SEPARATOR_CHAR)); > for (String id : ids) { > try { > Integer.parseInt(id); > } catch (Exception e) { > continue; > } > clientId =3D clientId.replace(NamingContainer.SEPARATOR_CHAR + id > + NamingContainer.SEPARATOR_CHAR, String > .valueOf(NamingContainer.SEPARATOR_CHAR)); > } > } > return clientId; > } > > /** > * Invokes the internal converter/validators(s) for an editable value > holder > * and returns the converted value > * > * @param context > * @param holder > * @param value > * @return the converted value > * @throws ValidatorException > * @throws EvaluationException > * @throws MethodNotFoundException > */ > public static final Object setConvertedAndValidatedValue(FacesContext > context, > EditableValueHolder holder, Object value) > throws ValidatorException, EvaluationException, > MethodNotFoundException { > if (holder !=3D null) { > if (holder.getConverter() !=3D null) { > value =3D holder.getConverter().getAsObject(context, > (UIComponent) holder, > value !=3D null ? value.toString() : null); > } > if (holder instanceof UIComponent) { > if (holder.getValidators() !=3D null) { > for (Validator v : holder.getValidators()) { > v.validate(context, (UIComponent) holder, value); > } > } > } > if (holder.getValidator() !=3D null) { > holder.getValidator().invoke(context, new Object[] { value }); > } > holder.setSubmittedValue(value); > return value; > } > return null; > } > > -----Original Message----- > From: Francisco Passos [mailto:francisco.passos@opensoft.pt] > Sent: Monday, April 09, 2007 11:17 AM > To: William Hoover > Subject: RE: Keeping selectOneChoice selection > > > No, it is in a facet for a panelPage. > > In it, I have a panelGroupLayout, then a panelHorizontalLayout and = finally > in it the panelPage. > > If you feel it's best, I can attach the code or paste it in the mail = body. > > Either way, if the selectOneChoice were in a table (something I will > surely need), what would the solution be? > > Thank you, > > Francisco > > > >> Francisco, >> >> Is your selectOneChoice in a table? >> >> -----Original Message----- >> From: Francisco Passos [mailto:francisco.passos@opensoft.pt] >> Sent: Monday, April 09, 2007 10:55 AM >> To: adffaces-user@incubator.apache.org >> Subject: Keeping selectOneChoice selection >> >> >> Hello there. >> >> I'm new to JSF and Trinidad, so please bear with my simplistic = doubts. >> >> I'm struggling to keep a selectOneChoice selection upon a postback = using >> a >> request-scoped bean. >> >> At first I couldn't even maintain the values in the list, but I found >> that >> placing a h:inputHidden on the page and declaring its value to be >> #{myBean.valueList}, they could be kept. Furthermore I've tested the >> seme >> using pageFlow and it worked. >> >> However, I cannot keep the selected value in the dropdown list, it = just >> resets. >> >> What is the correct way to do this simple task without using session >> beans? >> >> Thank you for your time and attention, >> >> Francisco Passos >> >> >> > > > Francisco Passos > Opensoft - Solu=E7=F5es Inform=E1ticas, Lda > Telem=F3vel: +351 91 238 52 76 > Escrit=F3rio: +351 21 380 44 10 > Email: francisco.passos@opensoft.pt > > > Francisco Passos Opensoft - Solu=E7=F5es Inform=E1ticas, Lda Telem=F3vel: +351 91 238 52 76 Escrit=F3rio: +351 21 380 44 10 Email: francisco.passos@opensoft.pt