SelectItem with null value

Question

Well, i have a set of Cars that should be in a selectOneMenu. But i have a one SelectItem(null,"ALL").

See my xhtml:

<h:selectOneMenu value="#{mb.carSelected}">
                        <f:selectItems value="#{mb.cars}" />
                        <s:convertEntity />
                    </h:selectOneMenu>

In my managedBean (MB):

private List<SelectItem> cars = new ArrayList<SelectItem>();
...
cars.add(new SelectItem(null, "ALL"));
        for (Car c : myCars) {
cars.add(new SelectItem(c, c.getModel()));
        }

When i select the "ALL" and click in submit FORM i got the following error:

For input string: "ALL"
java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
java.lang.Integer.parseInt(Integer.java:449)
java.lang.Integer.<init>(Integer.java:660)
org.jboss.seam.ui.EntityIdentifierStore.get(EntityIdentifierStore.java:46)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32)
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28)
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44)
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
org.jboss.seam.core.SynchronizationInterceptor.aroundInvoke(SynchronizationInterceptor.java:32)
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:185)
org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:103)
org.jboss.seam.ui.EntityIdentifierStore_$$_javassist_seam_13.get(EntityIdentifierStore_$$_javassist_seam_13.java)
org.jboss.seam.ui.AbstractEntityLoader.get(AbstractEntityLoader.java:27)
org.jboss.seam.ui.EntityConverter.getAsObject(EntityConverter.java:76)

I debug the code and noted that in "EntityConverter.getAsObject" the value passed is "ALL" and occurrs a conversion error. But anothers entity pass the value like 1,2,3 ...

I am not familiar with seam and > If it were me i will add a CarConverter. — Mahendran Ayyarsamy Kandiar, Dec 02 '15 at 18:23
This is from seam: https://docs.jboss.org/seam/2.0.3.CR1/reference/en-US/html/controls.html#d0e19018 — Ronaldo Lanhellas, Dec 02 '15 at 18:23
I am not familiar with Seam but the in the link you sent they are using — Mahendran Ayyarsamy Kandiar, Dec 02 '15 at 18:26
Jsf version info? Creating a list of selectItem objects is ancient and not needed anymore — Kukeltje, Dec 02 '15 at 18:36
My mistakey, i changed to and it works. Thanks @MahendranAyyarsamyKandiar — Ronaldo Lanhellas, Dec 02 '15 at 18:38
Great. My advice is to migrate from seam, please read line **Active development of Seam 3 has been halted by Red Hat. Many projects have moved over to Apache DeltaSpike , and others have been absorbed into different projects. Please see the below table for information about where the functionality from each module has gone and how you can participate*** in http://www.seamframework.org/ — Mahendran Ayyarsamy Kandiar, Dec 02 '15 at 18:45
This is a better way: http://stackoverflow.com/q/11360030 Keeps your model free of view-specific pollution. — BalusC, Dec 02 '15 at 20:29

SelectItem with null value

0 Answers0