How to select value of selectOneChoice

Question

Hello,
First of all I want to describe what I want to do and then the preconditions for my case.
What I want to do:
I simply want a <selectOneChoice> Component which represents an enumeration of values.
In database there is a column which has the value 'A' or 'P'.
In the DataTransferObject´s mentioned below these values are represented with Character objects.
If the DataTransferStructure mentioned below is loaded I want the <selectOneChoice> to display the current value originate from database.
If I submit the DataTransferStructure (or DataTransferObject --> see below) I want that the selected value (of <selectOneChoice>) will be written to database.
Preconditions:
ADF BusinessComponenets are not used.
Only ADF Faces and Bindings are used.
I have defined a Bean wich executes functions over RMI on EJBs.
This bean is used as DataControl to bind their return values to pages.
It looks nearly like following class:
public class FunctionalObjectServiceBean{
     public FunctionalObjectServiceBean() {
public DataTransferStructure readObjectWithId(Long Id)
throws Exception{
DataTransferStructure has link to> DataTransferObject
DataTransferObject has attribute> Character attributeA (with either value 'A' or 'P')
I have defined a selectOneChoice in the jspx.
DataTransferObjectAttr1 is an Iterator-Binding to the matching attribute in DataTransferObject.
value="#{bindings.DataTransferObjectAttr1.inputValue}" should select the appropriate value originating from database on load.
<af:selectOneChoice value="#{bindings.DataTransferObjectAttr1.inputValue}"
label="#{bindings.DataTransferObjectAttr1.label}"
required="#{bindings.DataTransferObjectAttr1.hints.mandatory}"
shortDesc="#{bindings.DataTransferObjectAttr1.hints.tooltip}"
id="soc1"
                                   valuePassThru="true">
<af:selectItem label="Active" value="A" id="si1"/>
<af:selectItem label="Passive" value="P" id="si2"/>
</af:selectOneChoice>
When I try to execute this example following errors occur:
<FacesCtrlListBinding> <getInputValue> ADFv: In der Werteliste wurden keine gewählten Elemente gefunden, die mit dem Wert A des Typs java.lang.Character übereinstimmen.
<Utils> <buildFacesMessage> ADF: Adding the following JSF error message: Erstellen eines Objekts vom Typ java.lang.Character aus Typ java.lang.String mit dem Wert A nicht möglich
oracle.jbo.domain.DataCreationException: JBO-25009: Erstellen eines Objekts vom Typ java.lang.Character aus Typ java.lang.String mit dem Wert A nicht möglich
Using converters has also no effect here.
thanking you in anticipation

Answer 1

I try to translate it in my words:
<FacesCtrlListBinding> <getInputValue> In the value list no elements were found which match the value A with datatype java.lang.Character.
<Utils> <buildFacesMessage> ADF: Adding the following JSF error message: Creating object of type java.lang.Character from source type java.lang.String not possible.
oracle.jbo.domain.DataCreationException: JBO-25009: Cannot create an object of type:java.lang.Character from type:java.lang.String with value: A.