As for my previous question, JSR 303 bean validation, an extended ConstraintValidator cannot use CDI . The seam validation module gives me the perfect solution to centralize all JSF and EJB validation without repeating the code.
Anyway, when I try to let JPA (EclipseLink) do the validation, the system will give me the following:
java.lang.IllegalStateException: WEB9031: WebappClassLoader cannot load the resource [javax.enterprise.inject.spi.BeanManager] , because it has not already been started or has already been stopped
The full stack trace is as follows: -
Caused by: java.lang.IllegalStateException: WEB9031: WebappClassLoader unable to load resource [javax.enterprise.inject.spi.BeanManager], because it has not yet been started, or was already stopped at org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1401) at org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1359) at org.jboss.seam.validation.InjectingConstraintValidatorFactory.getInstance(InjectingConstraintValidatorFactory.java:67) at org.hibernate.validator.internal.engine.ConstraintTree.createAndInitializeValidator(ConstraintTree.java:346) at org.hibernate.validator.internal.engine.ConstraintTree.getInitializedValidator(ConstraintTree.java:334) at org.hibernate.validator.internal.engine.ConstraintTree.validateConstraints(ConstraintTree.java:155) at org.hibernate.validator.internal.engine.ConstraintTree.validateConstraints(ConstraintTree.java:125) at org.hibernate.validator.internal.metadata.core.MetaConstraint.validateConstraint(MetaConstraint.java:86) at org.hibernate.validator.internal.engine.ValidatorImpl.validateConstraint(ValidatorImpl.java:442) at org.hibernate.validator.internal.engine.ValidatorImpl.validateConstraintsForDefaultGroup(ValidatorImpl.java:387) at org.hibernate.validator.internal.engine.ValidatorImpl.validateConstraintsForCurrentGroup(ValidatorImpl.java:351) at org.hibernate.validator.internal.engine.ValidatorImpl.validateInContext(ValidatorImpl.java:303) at org.hibernate.validator.internal.engine.ValidatorImpl.validate(ValidatorImpl.java:133) at org.eclipse.persistence.internal.jpa.metadata.listeners.BeanValidationListener.validateOnCallbackEvent(BeanValidationListener.java:84) at org.eclipse.persistence.internal.jpa.metadata.listeners.BeanValidationListener.prePersist(BeanValidationListener.java:62) at org.eclipse.persistence.descriptors.DescriptorEventManager.notifyListener(DescriptorEventManager.java:698) at org.eclipse.persistence.descriptors.DescriptorEventManager.notifyEJB30Listeners(DescriptorEventManager.java:641) at org.eclipse.persistence.descriptors.DescriptorEventManager.executeEvent(DescriptorEventManager.java:200) at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectClone(UnitOfWorkImpl.java:4257) at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNotRegisteredNewObjectForPersist(UnitOfWorkImpl.java:4234) at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.registerNotRegisteredNewObjectForPersist(RepeatableWriteUnitOfWork.java:513) at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4176) at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:440)
I'm not sure if I can use CDI with Constraint Validator along with JPA or not. Could you help in the future? Thank you so much for your help in advance. I look forward to hearing from you soon.
My environment is as follows:
- Windows 7 64 bit
- JDK 1.6.0_31 64 bit
- Eclipse Indigo SR1 64 bit
- Glassfish 3.1.2.2
- EclipseLink 2.3.2 (package with GF)
- Weld 1.1.10-final
- Hibernate Valiation 4.3.0.Final
- Soldering iron for seams 3.1.1. The final
- Seam Test 3.1.0.Final
My sample coding
Utility
@Singleton public class MyUtility { public boolean isValid(final String input) { return (input != null) || (!input.trim().equals("")); } }
Constraint Annotations
@Retention(RetentionPolicy.RUNTIME) @Target({ ElementType.TYPE, ElementType.ANNOTATION_TYPE, ElementType.FIELD }) @Constraint(validatedBy = Validator.class) @Documented public @interface Validatable { String message() default "Validation is failure"; Class<?>[] groups() default {}; Class<? extends Payload>[] payload() default {}; }
Constraint validator
public class Validator extends ConstraintValidator<Validatable, MyBean> { // //----> Try to inject the utility with Seam validation // @Inject private MyUtility myUtil; public void initialize(ValidatableconstraintAnnotation) { //nothing } public boolean isValid(final MyBean myBean, final ConstraintValidatorContext constraintContext) { if (myBean == null) { return true; } // //----> It works as expected, but not for the JPA layer // return this.myUtil.isValid(myBean.getName()); } }
Bean data as a bean object
@Entity //--other JPA annotation @Validatable public class MyBean { private String name; //Getter and Setter here }
JSF bean support
@Named @SessionScoped public class Page1 { //javax.validation.Validator @Inject private Validator validator; @Inject private MyBean myBean; @PersistenceContext(unitName = "mydb-pu") private EntityManager em; //Submit method public void submit() { Set<ConstraintViolation<Object>> violations = this.validator.validate(this.myBean); if (violations.size() > 0) { //Handle error here. } this.em.persist(this.myBean); } }
The persistence.xml
<persistence-unit name="mydb-pu" transaction-type="JTA"> <jta-data-source>jdbc/mydb</jta-data-source> <class>...</class> <validation-mode>NONE</validation-mode> <properties> <property name="eclipselink.ddl-generation" value="create-tables"/> <property name="eclipselink.ddl-generation" value="none" /> <property name="eclipselink.ddl-generation.output-mode" value="both"/> </properties> </persistence-unit>
Validation.xml File
<?xml version="1.0" encoding="UTF-8"?> <validation-config xmlns="http://jboss.org/xml/ns/javax/validation/configuration" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jboss.org/xml/ns/javax/validation/configuration validation-configuration-1.0.xsd"> <constraint-validator-factory> org.jboss.seam.validation.InjectingConstraintValidatorFactory </constraint-validator-factory> </validation-config>
Regarding the Persistence.xml mentioned, if I remove the validation mode, the system gives me an exception. At the moment, I have disabled JPA validation as an interim solution.