Hello,
i wrote an own jsf validator(which performs a database lookup) a time ago
and want to reuse it for my current seam application
The thing is, in my Validator class i need database access and the
EntityManager will be null (i think the reason is the ValidatorClass will be
instantiated by jsf , out of the seam context)
JSP
| <f:validator validatorId="nickNameValidator"/>
|
JAVA
| @Name("NickNameValidator")
| @Interceptors(SeamInterceptor.class)
| public class NickNameValidator implements Validator {
|
| //@PersistenceContext
| //@In(value="dataSource")
| @PersistenceContext
| private EntityManager entityManager;
| //private IDataSource dataSource;
|
|
| public void validate(FacesContext fc, UIComponent uic, Object o) {
| String nickName = (String)o;
|
| System.out.println("entityManager: "+entityManager);
|
|
| ValidatorException validatorException = checkNickName(fc,
nickName);
| if (validatorException != null) {
| ((UIInput)uic).setValid(false);
| throw validatorException;
| }
| }
| }
|
I know i can perform validation via the Hibernate Framework , but id like to
reuse my old cold and i also did not found any examples how to do "database
based validation" with the annotation syntax.
Thank u very much,
Holger
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