Maybe, you should try to use a valueChangeListener for the selectOneMenu,
which listens to changes in the list. Implement a method in your bean that
accept a ValueChangeEvent and set the centerId with the new value of the
event...
The attribute value for the selectOneMenu sets the initial selected value
for the list, so centerId is null when saving the user (as centerId is
null when the page is loaded, so no item is selected in the menu).
Good luck,
Bruno
> User:
>
> public class User implements Serializable {
> /**
> * User
> * Default Constructor
> */
> public User ()
> {
> logger.debug("User is created");
>
> }
>
> private String username;
> private Long centerId;
> private Long userId;
> private String phone;
> private String project;
> private boolean userContractor;
> private String contractNumber;
> private Category logger = Category.getInstance(this.getClass());
> private Long contractorId;
>
>
> public Long getCenterId ()
> {
> return centerId;
> }
>
> public void setCenterId ( Long centerId )
> {
> this.centerId = centerId;
> }
>
> ... other getters/setters
>
> }
>
>
> UserBean: (managed bean)
>
> package gov.nasa.msfc.repository.submittal.view.bean;
>
> import gov.nasa.msfc.repository.submittal.model.businessobject.User;
> import gov.nasa.msfc.repository.submittal.model.exception.UserException;
> import gov.nasa.msfc.repository.submittal.view.builder.UserBuilder;
> import gov.nasa.msfc.repository.submittal.view.util.FacesUtils;
>
> public class UserBean extends BaseBean {
>
> private Long centerId;
> private String username;
> private Long userId;
> private String phone;
> private String project;
> private boolean userContractor;
> private Long contractorId;
> private String contractNumber;
>
> /**
> * UserBean
> */
> public UserBean ()
> {
> logger.debug("UserBean is created");
> }
>
> public Long getCenterId ()
> {
> return centerId;
> }
>
> public void setCenterId ( Long centerId )
> {
> this.centerId = centerId;
> }
>
> ... other gettters/setters
>
> /**
> * save
> */
> public String saveAction ()
> {
> String result = "fail";
> try
> {
> User user = UserBuilder.createUser ( this );
>
> this.serviceLocator.getUserService ().save ( user );
> result = "success";
> }
> catch ( UserException ex )
> {
> String msg = "Could not save/udpate user";
> FacesUtils.addErrorMessage ( msg + ":Internal Error" );
> }
> return result;
> }
>
> }
>
>
> I'm setting a bean property with the value from a select one list box like
> this:
>
> <h:selectOneMenu id="centermenu" value="#{userBean.centerId}">
> <f:selectItems value="#{applicationBean.centerSelectItems}"/>
> </h:selectOneMenu>
>
> applicationBean.centerSelectItems is an ArrayList of selectItem objects
> each
> containing a name/value pair.
>
> In the mapping file the centerId is set to not-null="true" because a user
> should always have a centerId.
>
> User.hbm.xml:
>
> <?xml version="1.0"?>
> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD
> 2.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd";>
> <hibernate-mapping
> package="gov.nasa.msfc.repository.submittal.model.businessobject">
> <class name="User" table="SUBMITTAL_USER" >
> <cache usage="read-write"/>
> <id name="userId" column="USER_ID" unsaved-value="null">
> <generator class="sequence">
> <param name="sequence">submittal_user_seq</param>
> </generator>
> </id>
> <many-to-one name="centerId" class="Center" column="CENTER_ID"
> cascade="none" not-null="true" />
> <property name="username" column="USERNAME"/>
> <property name="phone" column="PHONE"/>
> <property name="project" column="PROJECT"/>
> <property name="userContractor" column="IS_CONTRACTOR"/>
> <many-to-one name="contractorId" class="Contractor"
> column="CONTRACTOR_ID" cascade="none" />
> <property name="contractNumber" column="CONTRACT_NUMBER"/>
> </class>
> </hibernate-mapping>
>
>
> When the user visits the userdata.jsp page the form gives them the option
> to
> set the centerId using the above selectOneMenu tag. The problem is that
> when the saveAction is executed by a user the following message is
> displayed:
> net.sf.hibernate.PropertyValueException: not-null property references a
> null
> or transient value:
> gov.nasa.msfc.repository.submittal.model.businessobject.User.centerId
>
> The question is why is User.centerId null? and what can I do to ensure it
> is
> not null?
>
> Thanks,
> Mark
>
>
>
>
>
>
>
>
>
