Hi,
yes, that's exactly what I meant! I implemented a method
getDisplayLable() on my Person class and use it inside the <tc:out .../>
tag.
Thanks again for your suggestions!
Regards,
Stefan.
Volker Weber schrieb:
> Hi,
>
> i'm not sure if i understand this correct, if not please explain with
> jsf source.
>
> You have list of objects containing a person, and display this in a
> sheet?
> e.g:
> <tc:sheet ... var="item" >
> ...
> <tc:column ...>
> <tc:out value="#{item.person}"/>
> </tc:column>
> ...
> </tc:sheet>
>
> this will result in the id with your converter.
>
> two possible solutions:
> add a special method to the person class: getAsLabel()
> and use <tc:out value="#{item.person.asLabel}"/>
> or add all properties to the valueBinding
> <tc:out value="#{item.person.salutation.name}
> #{item.person.firstname} #{item.person.lastname}"/>
>
> Regards,
> Volker
>
>
>
>
> 2007/1/29, Stefan Hedtfeld <[EMAIL PROTECTED]>:
>> Hi Volker,
>>
>> thanks for the quick response. I changed my converter to return the id
>> as you suggested (and I guess I had this state before but got over it
>> ...). This way it works for the tx:selectOneChoice.
>>
>> But if the object containing the person as a field is displayed in a
>> table now the person's id is displayed. I can avoid this by adding
>> special properties to the <tc:out /> tag. Or do you know a better
>> solution for this?
>>
>> Regards,
>>
>> Stefan.
>>
>> Volker Weber schrieb:
>> > Hi Stefan,
>> >
>> > change the converter to convert from and to id
>> > and don't use the converter for the label.
>> >
>> > e.g.:
>> >
>> >
>> > List<SelectItem> items = new ArrayList<SelectItem>();
>> > for (Person person : list) {
>> > StringBuilder builder = new StringBuilder();
>> > if (person.getSalutation() != null) {
>> > builder.append(person.getSalutation().getName()).append(" ");
>> > }
>> > if (!StringUtils.isEmpty(person.getFirstname())) {
>> > builder.append(person.getFirstname()).append(" ");
>> > }
>> > String label = builder.append(person.getLastname())
>> > .append("(").append(person.getId()).append(")").toString();
>> > items.add(new SelectItem(person, label));
>> > }
>> >
>> >
>> > and
>> >
>> > public Object getAsObject(FacesContext context, UIComponent component,
>> > String value) throws ConverterException {
>> > if (StringUtils.isEmpty(value)) {
>> > return null;
>> > }
>> > try {
>> > int personId = Integer.parseInt(value);
>> > return
>> > ProjectManagementHelper.getProjectManagement().getPerson(personId);
>> > }
>> > } catch (NumberFormatException e) {
>> > LOG.error("", e);
>> > }
>> > return null;
>> > }
>> >
>> > public String getAsString(FacesContext context, UIComponent component,
>> > Object obj) throws ConverterException {
>> > if (obj == null) {
>> > LOG.info("###+++ received null value! +++###");
>> > return null;
>> > }
>> > if (obj instanceof Person) {
>> > LOG.info("###+++ received Person instance! +++###");
>> > return ((Person) obj).getId();
>> > }
>> > throw new ConverterException("Expected " + Person.class.getName() +
>> > ", received " + obj.getClass().getName());
>> > }
>> >
>> >
>> > Regards,
>> > Volker
>> >
>> > 2007/1/29, Stefan Hedtfeld <[EMAIL PROTECTED]>:
>> >> Hi,
>> >>
>> >> I'm trying to display some complex values within a tx:selectOneChoice
>> >> element. What I've managed so far is the following:
>> >>
>> >> 1. The tag:
>> >>
>> >> <tx:selectOneChoice
>> >> value="#{editorController.currentEntry.member}"
>> >> label="#{mainBundle.member}" >
>> >> <f:selectItems value="#{editorController.memberItems}" />
>> >> </tx:selectOneChoice>
>> >>
>> >> 2. The item list (memberItem):
>> >>
>> >> ...
>> >> // list is declared as List<Person> list above
>> >> ...
>> >> List<SelectItem> items = new ArrayList<SelectItem>();
>> >> for (Person person : list) {
>> >> items.add(new SelectItem(person,
>> converter.getAsString(person)));
>> >> }
>> >> return items;
>> >>
>> >> 3. The converter registered for the Person class (an instance of
>> >> Converter with an additional convenience method getAsString(Person
>> p) -
>> >> this method is accessible from a caller through the second
>> interface):
>> >>
>> >> public class PersonConverter implements Converter,
>> >> AsStringConverter<Person> {
>> >>
>> >> private static final Log LOG =
>> >> LogFactory.getLog(PersonConverter.class);
>> >>
>> >> public Object getAsObject(FacesContext context, UIComponent
>> component,
>> >> String value) throws ConverterException {
>> >> if (StringUtils.isEmpty(value)) {
>> >> return null;
>> >> }
>> >> try {
>> >> int posOpen = value.lastIndexOf("(");
>> >> int posClose = value.lastIndexOf(")");
>> >> if (posOpen >= 0 && posClose > posOpen) {
>> >> String substring = value.substring(posOpen + 1, posClose);
>> >> LOG.info("#+#+# Substring = \"" + substring + "\"");
>> >> int personId = Integer.parseInt(substring);
>> >> return
>> >> ProjectManagementHelper.getProjectManagement().getPerson(personId);
>> >> }
>> >> } catch (NumberFormatException e) {
>> >> LOG.error("", e);
>> >> }
>> >> return null;
>> >> }
>> >>
>> >> public String getAsString(FacesContext context, UIComponent
>> component,
>> >> Object obj) throws ConverterException {
>> >> if (obj == null) {
>> >> LOG.info("###+++ received null value! +++###");
>> >> return null;
>> >> }
>> >> if (obj instanceof Person) {
>> >> LOG.info("###+++ received Person instance! +++###");
>> >> return getAsString((Person) obj);
>> >> }
>> >> throw new ConverterException("Expected " +
>> Person.class.getName() +
>> >> ", received " + obj.getClass().getName());
>> >> }
>> >>
>> >> public String getAsString(Person person) {
>> >> StringBuilder builder = new StringBuilder();
>> >> if (person.getSalutation() != null) {
>> >> builder.append(person.getSalutation().getName()).append(" ");
>> >> }
>> >> if (!StringUtils.isEmpty(person.getFirstname())) {
>> >> builder.append(person.getFirstname()).append(" ");
>> >> }
>> >> return builder.append(person.getLastname()).append("
>> >> (").append(person.getId()).append(")").toString();
>> >> }
>> >>
>> >> }
>> >>
>> >> This at least works, but it is kind of ugly UI as I had to code the
>> >> object's internal id into the String displayed in the list. So my own
>> >> entry could be "Mr. Stefan Hedtfeld (2)" - which is not the intended
>> >> way. I'd like to simply display "Mr. Stefan Hedtfeld".
>> >>
>> >> Is there a better way to handle this?
>> >>
>> >> Regards,
>> >>
>> >> Stefan.
>> >>
>> >
>>
>>
>
