[jsr-314-open] BeanValidator cannot resolve composite component values
I've logged an issue for this:
https://javaserverfaces.dev.java.net/issues/show_bug.cgi?id=1360
When baseClass is:
class com.sun.faces.el.CompositeComponentAttributesELResolver
$ExpressionEvalMap
BeanValidator.isResolvable(...) returns false because ExpressionEvalMap
is a Map -- and never attempts to traverse the composite component.
This is a big problem with Bean Validation support, since probably the
most attractive feature of JSF2 is composite components, and this means
BeanValidation will not function at all within any composite components.
// case 1, base classes of Map, List, or Array are not
resolvable
if (null != baseClass) {
if (Map.class.isAssignableFrom(baseClass) ||
Collection.class.isAssignableFrom(baseClass) ||
Array.class.isAssignableFrom(baseClass)) {
failureMessage = "Unable to validate expression " +
valueExpression.getExpressionString() +
" using Bean Validation. Expression
evaluates to a Map, List or array.";
result = false;
}
}
This can be reproduced by using the following component, and an Object
annotated with JSR303 annos.
Consuming page: (I've also tried "value" as the for="..."
attribute
value with no success)
<h:form>
<a:comp id="test" value="${bean.test.text}">
<f:validateBean for="#{bean.test}"/>
</a:comp>
</h:form>
Example component:
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:a="http://java.sun.com/jsf/composite/ajax"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:composite="http://java.sun.com/jsf/composite">
<composite:interface>
<composite:attribute name="value" required="true"
type="Object" />
<composite:editableValueHolder name="value"
targets="value" />
</composite:interface>
<composite:implementation>
<h:message id="inputErr" for="input"/><br/>
<h:inputText id="input" value="#{cc.attrs.value}" >
<f:ajax execute="@this" render="@this inputErr" />
</h:inputText>
</composite:implementation>
</html>
Example Object:
public class ValidationCriteria
{
@Size(min=4, max=255)
private String text;
public String getText()
{
return text;
}
public void setText(final String validation)
{
this.text = validation;
}
}
ExampleBean
@ManagedBean
public class Bean
{
private ValidationCriteria test = new ValidationCriteria();
public ValidationCriteria getTest()
{
return test;
}
}
--
Lincoln Baxter, III
Co-Founder of OcpSoft
Creator of:
PrettyFaces: URL rewriting for JSF
PrettyTime: Java elapsed timestamp formatting
Attachments:
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