SelectBox with data from Service Component

Hello,
I have a SelectBox using a Service Component, I tried both using a wizard-created SC and a custom made one.
With both, the Selectbox contains a last empty option which does not come from the SC. If selecting this empty option the running webdynpro crashes with 500.
java.lang.NullPointerException
at com.sap.tc.wd4vc.core.std.attributes.impl.provider.XGLEnumProvider.set(XGLEnumProvider.java:236)
at com.sap.tc.webdynpro.progmodel.context.DataAttributeInfo$CalculatedAccessor.set(DataAttributeInfo.java:736)
at com.sap.tc.webdynpro.progmodel.context.DataAttributeInfo.setAttributeValue(DataAttributeInfo.java:525)
at com.sap.tc.webdynpro.progmodel.context.NodeElement.wdSetObject(NodeElement.java:600)
at com.sap.tc.webdynpro.progmodel.context.MappedNodeElement.wdSetObject(MappedNodeElement.java:79)
I have no idea where this empty option may come from....
Other issues: the SC has two fields in a static data store:
"num" and "name" for the selectbox option's "value" and "text",
e.g.
num=1, name=foo
num=2, name=bar
if num is of type number, and your configuring the selectbox entrylist to use the dynamic SC, you cant select the num-field as its type is number and not text.
however you may select the num-field manually via the expressions dialog.
another issue:
it seems the static datastore may create multiple rows only if created via the SC-wizard which allows you to enter multiple static data rows.
if creating a SC manually you cant assign multiple data-rows, the static-store's fields may only assigned once with data, no rightclick-option to "add a new record"...
these little bugs make working productively with VC very exhausting ...
thanks for any hint regarding the bogus selectbox-SC-connection!
kai

the problems rise ...
if i select the combobox right at the beginning after page loading has completed, a proper combo list appears (still with the empty entry, which yields 500 if getting selected).
however after the form-inputs have changed (by selecting a row in a table) selecting the combobox instantly results in a 500er without even displaying the combo`s selection-list:
com.sap.tc.webdynpro.progmodel.context.ContextException: NodeElement(.Generic.DynamicDataNode) is invalid, either it has been removed from the context or the context has already been destroyed
    at com.sap.tc.webdynpro.progmodel.context.NodeElement.assertValid(NodeElement.java:1274)
    at com.sap.tc.webdynpro.progmodel.context.Paths.createAttributePointer(Paths.java:246)
    at com.sap.tc.webdynpro.clientserver.uielib.standard.uradapter.DropDownByKeyAdapter.setViewAndNodeElement(DropDownByKeyAdapter.java:206)
    at com.sap.tc.webdynpro.clientserver.uielements.adaptmgr.URAdapterManager.getAdapterFor(URAdapterManager.java:348)
    at com.sap.tc.webdynpro.clientserver.uielements.adaptmgr.URAdapterManager.getAdapterFor(URAdapterManager.java:124)
this whole dynamic-list feature seems to be hardcore-buggy.
any ideas?
kai

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 text
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Regards
Kannaiah

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import javax.xml.bind.annotation.XmlAccessorType;
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return new CreditcardinfoCollection();
* Create an instance of {@link GetCreditValidationSelectCcnb }
public GetCreditValidationSelectCcnb createGetCreditValidationSelectCcnb() {
return new GetCreditValidationSelectCcnb();
* Create an instance of {@link Creditcardinfo }
public Creditcardinfo createCreditcardinfo() {
return new Creditcardinfo();
* Create an instance of {@link JAXBElement }{@code <}{@link CreditcardinfoCollection }{@code >}}
@XmlElementDecl(namespace = "http://xmlns.oracle.com/pcbpel/adapter/db/top/getCreditValidation", name = "CreditcardinfoCollection")
public JAXBElement<CreditcardinfoCollection> createCreditcardinfoCollection(CreditcardinfoCollection value) {
return new JAXBElement<CreditcardinfoCollection>(_CreditcardinfoCollection_QNAME, CreditcardinfoCollection.class, null, value);
* Create an instance of {@link JAXBElement }{@code <}{@link GetCreditValidationSelectCcnb }{@code >}}
@XmlElementDecl(namespace = "http://xmlns.oracle.com/pcbpel/adapter/db/top/getCreditValidation", name = "getCreditValidationSelect_ccnbInputParameters")
public JAXBElement<GetCreditValidationSelectCcnb> createGetCreditValidationSelectCcnbInputParameters(GetCreditValidationSelectCcnb value) {
return new JAXBElement<GetCreditValidationSelectCcnb>(_GetCreditValidationSelectCcnbInputParameters_QNAME, GetCreditValidationSelectCcnb.class, null, value);
package-info.java
@javax.xml.bind.annotation.XmlSchema(namespace = "http://xmlns.oracle.com/pcbpel/adapter/db/top/getCreditValidation", elementFormDefault = javax.xml.bind.annotation.XmlNsForm.QUALIFIED)
package com.oracle.xmlns.pcbpel.adapter.db.top.getcreditvalidation;
GetCreditValidation_ptt.java
package getcreditvalidation.validationforccwithspring.creditcardvalidation.db.adapter.pcbpel.com.oracle.xmlns;
import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebResult;
import javax.jws.WebService;
import javax.jws.soap.SOAPBinding;
import javax.jws.soap.SOAPBinding.ParameterStyle;
import javax.xml.bind.annotation.XmlSeeAlso;
import javax.xml.ws.Action;
// !DO NOT EDIT THIS FILE!
// This source file is generated by Oracle tools
// Contents may be subject to change
// For reporting problems, use the following
// Version = Oracle WebServices (11.1.1.0.0, build 111209.0821.28162)
@WebService(targetNamespace="http://xmlns.oracle.com/pcbpel/adapter/db/CreditCardValidation/validationForCCWithSpring/getCreditValidation",
name="getCreditValidation_ptt")
@XmlSeeAlso(
{ com.oracle.xmlns.pcbpel.adapter.db.top.getcreditvalidation.ObjectFactory.class })
public interface GetCreditValidation_ptt
@WebMethod
@SOAPBinding(parameterStyle=ParameterStyle.BARE)
@Action(input="http://xmlns.oracle.com/pcbpel/adapter/db/CreditCardValidation/validationForCCWithSpring/getCreditValidation/getCreditValidation_ptt/getCreditValidationSelectRequest",
output="http://xmlns.oracle.com/pcbpel/adapter/db/CreditCardValidation/validationForCCWithSpring/getCreditValidation/getCreditValidation_ptt/getCreditValidationSelectResponse")
@WebResult(targetNamespace="http://xmlns.oracle.com/pcbpel/adapter/db/top/getCreditValidation",
partName="CreditcardinfoCollection", name="CreditcardinfoCollection")
public com.oracle.xmlns.pcbpel.adapter.db.top.getcreditvalidation.CreditcardinfoCollection getCreditValidationSelect(@WebParam(targetNamespace="http://xmlns.oracle.com/pcbpel/adapter/db/top/getCreditValidation",
partName="getCreditValidationSelect_inputParameters", name="getCreditValidationSelect_ccnbInputParameters")
com.oracle.xmlns.pcbpel.adapter.db.top.getcreditvalidation.GetCreditValidationSelectCcnb getCreditValidationSelect_inputParameters);
Here there is the classes linked to the Spring Component and the configuration file :
SpringCallDB
<?xml version="1.0" encoding="windows-1252" ?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:lang="http://www.springframework.org/schema/lang"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:sca="http://xmlns.oracle.com/weblogic/weblogic-sca"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.5.xsd http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd http://www.springframework.org/schema/tool http://www.springframework.org/schema/tool/spring-tool-2.5.xsd http://xmlns.oracle.com/weblogic/weblogic-sca META-INF/weblogic-sca.xsd">

<sca:service name="CCSpringService" target="CCSpringImpl"
type="validationForCC.spring.service.api.ISpringCCService"/>
<bean id="CCSpringImpl" class="validationForCC.spring.service.impl.SpringCCServiceImpl">
<property name="dbRequest" ref="getCreditValidation"/>
</bean>
<sca:reference type="getcreditvalidation.validationforccwithspring.creditcardvalidation.db.adapter.pcbpel.com.oracle.xmlns.GetCreditValidation_ptt"
name="getCreditValidation"/>
</beans>
CreditCardNumber.java
package validationForCC.spring.model;
public class CreditCardNumber {
private String ccNumber;
public CreditCardNumber() {
super();
public void setCcNumber(String nb){
this.ccNumber = nb;
public String getCcNumber(){
return ccNumber;
Response.java
package validationForCC.spring.model;
public class Response {
String reply;
public Response() {
super();
public void setReply(String rep){
this.reply = rep;
public String getReply(){
return reply;
ISpringCCService.java
package validationForCC.spring.service.api;
import validationForCC.spring.model.CreditCardNumber;
import validationForCC.spring.model.Response;
public interface ISpringCCService {
* @param ccn
* @return
public Response getCCStatus(CreditCardNumber ccn);
SpringCCServiceImpl.java
package validationForCC.spring.service.impl;
import com.oracle.xmlns.pcbpel.adapter.db.top.getcreditvalidation.*;
import java.util.List;
import javax.jws.WebParam;
import validationForCC.spring.model.CreditCardNumber;
import validationForCC.spring.model.Response;
public class SpringCCServiceImpl {
public SpringCCServiceImpl() {
super();
private getcreditvalidation.validationforccwithspring.creditcardvalidation.db.adapter.pcbpel.com.oracle.xmlns.GetCreditValidation_ptt dbRequest;
public Response getCCStatus(CreditCardNumber ccn){
Response resp = new Response();
CreditcardinfoCollection resultSet;
GetCreditValidationSelectCcnb selectCCNb = new GetCreditValidationSelectCcnb();
selectCCNb.setCcnb(ccn.getCcNumber());
resultSet = dbRequest.getCreditValidationSelect(selectCCNb);
resp.setReply((resultSet.getCreditcardinfo().get(0).getStatus()));
return resp;
public getcreditvalidation.validationforccwithspring.creditcardvalidation.db.adapter.pcbpel.com.oracle.xmlns.GetCreditValidation_ptt getDbRequest(){
return dbRequest;
public void setDbRequest(getcreditvalidation.validationforccwithspring.creditcardvalidation.db.adapter.pcbpel.com.oracle.xmlns.GetCreditValidation_ptt dbReq){
this.dbRequest = dbReq;
So, the line which is the cause of the error is the following :
resultSet = dbRequest.getCreditValidationSelect(selectCCNb);
in the SpringCCServiceImpl.java class
And there is the error I obtain :
+weblogic.sca.api.ScaException: java.lang.RuntimeException: BINDING.JCA-12563 Exception occured when binding was invoked. Exception occured during invocation of JCA binding: "JCA Binding execute of Reference operation 'getCreditValidationSelect' failed due to: DBReadInteractionSpec Execute Failed Exception. Query name: [getCreditValidationSelect], Descriptor name: [getCreditValidation.Creditcardinfo]. Caused by Exception [EclipseLink-6003] (Eclipse Persistence Services - 2.3.1.v20111018-r10243): org.eclipse.persistence.exceptions.QueryException Exception Description: The number of arguments provided to the query for execution does not match the number of arguments in the query definition. Query: ReadAllQuery(name="getCreditValidationSelect" referenceClass=Creditcardinfo ). See root exception for the specific exception. This exception is considered not retriable, likely due to a modelling mistake. ". The invoked JCA adapter raised a resource exception. Please examine the above error message carefully to determine a resolution.
Exception occured when binding was invoked. Exception occured during invocation of JCA binding: "JCA Binding execute of Reference operation 'getCreditValidationSelect' failed due to: DBReadInteractionSpec Execute Failed Exception. Query name: [getCreditValidationSelect], Descriptor name: [getCreditValidation.Creditcardinfo]. Caused by Exception [EclipseLink-6003] (Eclipse Persistence Services - 2.3.1.v20111018-r10243): org.eclipse.persistence.exceptions.QueryException Exception Description: The number of arguments provided to the query for execution does not match the number of arguments in the query definition. Query: ReadAllQuery(name="getCreditValidationSelect" referenceClass=Creditcardinfo ). See root exception for the specific exception. This exception is considered not retriable, likely due to a modelling mistake. ". The invoked JCA adapter raised a resource exception. Please examine the above error message carefully to determine a resolution.
java.lang.RuntimeException: BINDING.JCA-12563 Exception occured when binding was invoked. Exception occured during invocation of JCA binding: "JCA Binding execute of Reference operation 'getCreditValidationSelect' failed due to: DBReadInteractionSpec Execute Failed Exception. Query name: [getCreditValidationSelect], Descriptor name: [getCreditValidation.Creditcardinfo]. Caused by Exception [EclipseLink-6003] (Eclipse Persistence Services - 2.3.1.v20111018-r10243): org.eclipse.persistence.exceptions.QueryException Exception Description: The number of arguments provided to the query for execution does not match the number of arguments in the query definition. Query: ReadAllQuery(name="getCreditValidationSelect" referenceClass=Creditcardinfo ). See root exception for the specific exception. This exception is considered not retriable, likely due to a modelling mistake. ". The invoked JCA adapter raised a resource exception. Please examine the above error message ca
Exception occured when binding was invoked. Exception occured during invocation of JCA binding: "JCA Binding execute of Reference operation 'getCreditValidationSelect' failed due to: DBReadInteractionSpec Execute Failed Exception. Query name: [getCreditValidationSelect], Descriptor name: [getCreditValidation.Creditcardinfo]. Caused by Exception [EclipseLink-6003] (Eclipse Persistence Services - 2.3.1.v20111018-r10243): org.eclipse.persistence.exceptions.QueryException Exception Description: The number of arguments provided to the query for execution does not match the number of arguments in the query definition. Query: ReadAllQuery(name="getCreditValidationSelect" referenceClass=Creditcardinfo ). See root exception for the specific exception. This exception is considered not retriable, likely due to a modelling mistake. ". The invoked JCA adapter raised a resource exception. Please examine the above error message carefully to determine a resolution. +
Any idea is welcome! :)
If you have great urls to communicate with adapters and variables from spring component, don't hesitate to post it!
Thanks in advance,
Sophie
Edited by: 953383 on Sep 18, 2012 6:41 AM
Edited by: 953383 on Sep 18, 2012 6:43 AM
Edited by: 953383 on Sep 18, 2012 6:46 AM

Hello,
Finally, I can interact with my db adapter.
But, I ask you the following question : is there any documentation on the manner to interact with adapters and other component of the suite and on all classes generated?
Thanks in advance,
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