Hi Michael,
I've thought about that problem and implemented a solution that works
for the most cases.
See: https://issues.apache.org/jira/browse/TOBAGO-877
With the current sources your example should work now, without any of
the modifications I told you.
Which version of JSF you are using? The f:selectItem works not with JSF
1.1, but the tc:selectItem works with 1.1 and 1.2.
Regards,
Udo
Am 23.04.10 09:59, schrieb Udo Schnurpfeil:
Hi Michael,
there are more than one solution for that, but as far as I know there
is not cast operator...
1. use a managed bean
faces-config.xml:
<managed-bean>
<managed-bean-name>intValues</managed-bean-name>
<managed-bean-class>java.util.ArrayList</managed-bean-class>
<managed-bean-scope>application</managed-bean-scope> <!-- or use
"none" -->
<list-entries>
<value-class>java.lang.Integer</value-class>
<value>0</value>
<value>1</value>
<value>2</value>
</list-entries>
</managed-bean>
JSP/Facelet:
<tc:selectItem itemValue="#{intValues[1]}" itemLabel="suspended"/>
(simple, scales not good, works with JSF 1.1, 1.2 and JSP and Facelets)
2. write a EL-function
AFAIK: works with facelets and/or JSF 1.2 but may not work with JSP
and JSF 1.1.
What do you are using?
3. write a converter that implements the list, or map interface and
use it as managed bean
(a little bit complicated, scales good, works with JSF 1.1, 1.2 and
JSP and Facelets)
4. write an additional getter/setter activeLong.
(needs Java)
5. use <tc:selectItems> (instead of <tc:selectItem>) and you may also
want to use enums.
(may be the best solution but more work, needs Java 1.5, scales good,
refactoring is easy: there is only one position in the code to define
the values, type save: use the enum in your Controller, so you know
the meaning of the value from the enum)
For a simple application or demo I would prefer #1 or #4, for an
enterprise application I would prefer #5...
Regards,
Udo
Am 22.04.10 22:33, schrieb Michael Kakuschky:
Hello Udo, hello Volker,
both together (using braces for EL expression and long data type for
getter and setter) helped to get the tx:selectOneChoice working like
expected :-)
Since I use many int getters and setters where I want to use the
tx:selectOneChoice component it would be nice if there is some way to
convert the int to long in EL. It would help to save a lot of work..
Thanks & best regards Michael
Udo Schnurpfeil schrieb:
Hi,
there is still a little problem with that. #{0} is a Long value, so
the getter/setter needs be a also a Long and not an Integer.
I don't know, if in EL there is something like a "cast" operator...
Regards,
Udo
Am 22.04.10 18:20, schrieb Volker Weber:
Hi Michael,
(btw yes i work together with Dirk Fangohr. sorry for the delay, was a
bit busy last Friday)
the problem is you has int as value in getActive() but String in
select items.
Try
<tc:selectItem itemValue="#{2}" itemLabel="active"/>
<tc:selectItem itemValue="#{1}" itemLabel="suspended"/>
<tc:selectItem itemValue="#{0}" itemLabel="inactice"/>
you don't need a converter!
Regards,
Volker
2010/4/21 Michael Kakuschky<kakusc...@elbe-net.de>:
Hello,
I have a strange problem selecting the correct item of
tx:selectOneChoice
boxes if the itemValue of the tc:selectItem item is an Integer.
Storing the selected values works fine as aspected. I will find
the correct
values in mybackend database
What does not work is that after rerendering the correct value is
selected.
If in my example the MyController.active Integer attribute has a
value of 1
"suspended" should be selected. But it's always the first value of
the
tc:selectItem elements selected.
I tried already to use a converter because I guessed that there
is an
conversion problem between Integer and String but it does not help.
If the selectItem bind to a String it works fine (sure without the
integerConverter). With the tomahawk h:selectOneMenu component it
works also
with Integers.
Knows anybody how to solve this problem for tobago to use an
Integer as
value attribute?
<tc:cell>
<tx:selectOneChoice value="#{myController.active}" label="active"
converter="integerConverter">
<tc:selectItem itemValue="2" itemLabel="active"/>
<tc:selectItem itemValue="1" itemLabel="suspended"/>
<tc:selectItem itemValue="0" itemLabel="inactice"/>
</tx:selectOneChoice>
</tc:cell>
public class MyController{
private Integer active = 1;
public Integer getActive() {
return active;
}
public void setActive(Integer active) {
this.active = active;
}
}
public class IntegerConverter implements Converter {
public Object getAsObject(FacesContext context, UIComponent
component,
String value) throws ConverterException {
return Integer.getInteger(value);
}
public String getAsString(FacesContext context, UIComponent
component,
Object value) throws ConverterException {
if (value instanceof Integer) {
return ((Integer) value).toString();
}
return "";
}
}
Thanks and best regards
Michael
