Using GWT 2.5.0, I would like to use Client side validation and Editors. I encounter the following error when trying to pass the ConstraintViolation java.util.Set to the EditorDriver as follows.
Validator a = Validation.buildDefaultValidatorFactory().getValidator();
Set<ConstraintViolation<Person>> b = a.validate(person);
editorDriver.setConstraintViolations(b);
The method setConstraintViolations(Iterable<ConstraintViolation<?>>) in the type EditorDriver<Person> is not applicable for the arguments (Set<ConstraintViolation<Person>>)
The only somewhat relevant post I could find was Issue 6270!
Below is an Example which brings up a PopUpDialog with a Person Editor that allows you to specify a name and validate it against your annotations. Commenting out the personDriver.setConstraintViolations(violations); line in the PersonEditorDialog will allow you to run the example.
I don't have enough reputation points to post the image of the example.
public class Person {
@NotNull(message = "You must have a name")
@Size(min = 3, message = "Your name must contain more than 3 characters")
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
public class PersonEditorDialog extends DialogBox implements Editor<Person> {
private static PersonEditorDialogUiBinder uiBinder = GWT
.create(PersonEditorDialogUiBinder.class);
interface PersonEditorDialogUiBinder extends
UiBinder<Widget, PersonEditorDialog> {
}
private Validator validator;
public PersonEditorDialog() {
validator = Validation.buildDefaultValidatorFactory().getValidator();
setWidget(uiBinder.createAndBindUi(this));
}
interface Driver extends SimpleBeanEditorDriver<Person, PersonEditorDialog> {
};
@UiField
ValueBoxEditorDecorator<String> nameEditor;
@UiField
Button validateBtn;
private Driver personDriver;
@UiHandler("validateBtn")
public void handleValidate(ClickEvent e) {
Person created = personDriver.flush();
Set<ConstraintViolation<Person>> violations = validator
.validate(created);
if (!violations.isEmpty() || personDriver.hasErrors()) {
StringBuilder violationMsg = new StringBuilder();
for (Iterator<ConstraintViolation<Person>> iterator = violations.iterator(); iterator.hasNext();) {
ConstraintViolation<Person> constraintViolation = (ConstraintViolation<Person>) iterator
.next();
violationMsg.append(constraintViolation.getMessage() + ",");
}
Window.alert("Detected violations:" + violationMsg);
personDriver.setConstraintViolations(violations);
}
}
@Override
public void center() {
personDriver = GWT.create(Driver.class);
personDriver.initialize(this);
personDriver.edit(new Person());
super.center();
}
}
public final class SampleValidationFactory extends AbstractGwtValidatorFactory {
/**
* Validator marker for the Validation Sample project. Only the classes and
* groups listed in the {@link GwtValidation} annotation can be validated.
*/
@GwtValidation(Person.class)
public interface GwtValidator extends Validator {
}
@Override
public AbstractGwtValidator createValidator() {
return GWT.create(GwtValidator.class);
}
}
public class EditorValidationTest implements EntryPoint {
/**
* This is the entry point method.
*/
public void onModuleLoad() {
PersonEditorDialog personEditorDialog = new PersonEditorDialog();
personEditorDialog.center();
}
}
<!DOCTYPE ui:UiBinder SYSTEM "http://dl.google.com/gwt/DTD/xhtml.ent">
<ui:UiBinder xmlns:ui="urn:ui:com.google.gwt.uibinder"
xmlns:g="urn:import:com.google.gwt.user.client.ui" xmlns:e="urn:import:com.google.gwt.editor.ui.client">
<ui:style>
.important {
font-weight: bold;
}
</ui:style>
<g:HTMLPanel>
<g:Label>Enter your Name:</g:Label>
<e:ValueBoxEditorDecorator ui:field="nameEditor">
<e:valuebox>
<g:TextBox />
</e:valuebox>
</e:ValueBoxEditorDecorator>
<g:Button ui:field="validateBtn">Validate</g:Button>
</g:HTMLPanel>
</ui:UiBinder>
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit 2.5.0//EN"
"http://google-web-toolkit.googlecode.com/svn/tags/2.5.0/distro-source/core/src/gwt-module.dtd">
<module rename-to='editorvalidationtest'>
<inherits name='com.google.gwt.user.User' />
<inherits name='com.google.gwt.user.theme.clean.Clean' />
<inherits name="com.google.gwt.editor.Editor"/>
<!-- Validation module inherits -->
<inherits name="org.hibernate.validator.HibernateValidator" />
<replace-with
class="com.test.client.SampleValidationFactory">
<when-type-is class="javax.validation.ValidatorFactory" />
</replace-with>
<!-- Specify the app entry point class. -->
<entry-point class='com.test.client.EditorValidationTest' />
<!-- Specify the paths for translatable code -->
<source path='client' />
<source path='shared' />
</module>
As discussed in the comments, the following cast was determined to be a valid workaround.
Set<?> test = violations;
editorDriver.setConstraintViolations((Set<ConstraintViolation<?>>) test);