model-based constraints defined using Hibernate Validator

[samwun9988]

Hello,

Can anyone tell me how to use model-based constraints defined using Hibernate Validator for Primefaces?

Thanks
Sam

[robert.m]

If you are talking about Bean Validation (JSR 303) this can be applied using <f:validateBean />

Examples:

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<p:inputText value="#{managedBean.firstName}">
    <f:validateBean />
</p:inputText>

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<f:validateBean>
    <p:inputText value="#{managedBean.firstName}" />
    <p:inputText value="#{managedBean.middleName}" />
    <p:inputText value="#{managedBean.lastName}" />
</f:validateBean>

This also works with validation groups:

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<f:validateBean validationGroups="com.example.jsf.TextValidationGroup">
    <p:inputText value="#{managedBean.firstName}" />
    <p:inputText value="#{managedBean.middleName}" />
    <p:inputText value="#{managedBean.lastName}" />
</f:validateBean>

[samwun9988]

Thank you for the response with examples.

How to apply constraint with primedaces?
Eg.
@TeadingRuleConstraints()
private StockTrades storkTrades;

I want its validation message to be printed out in the jsf message tag eg. <p: messages />

Thanks a lot
Sam

[robert.m]

I don't exactly know what you want, but I guess you need to define your own Constraints:
http://musingsofaprogrammingaddict.blog ... -bean.html

In your validator-class, you can generate new FacesMessages and add it to the FacesContext, then they get rendered by the p:messages component

Then you can still use the f:validateBean-Component to trigger the bean validation

[samwun9988]

Yes, this is exactly what I mean. Thank you for the reference link. I will try this out .

Thanks very much
Sam

[bumble.bee]

If you annotate your entities I don't think you need to use the f:validateBean component at all.

[samwun9988]

Then how does constraint annotated validation work with PF?

Best regards
Sam

[tandraschko]

It's not PF specific.

Add a BV implementation to your JSF2 project and it's working.

Add context param:

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<context-param>
    <param-name>javax.faces.INTERPRET_EMPTY_STRING_SUBMITTED_VALUES_AS_NULL</param-name>
    <param-value>true</param-value>
</context-param>

Bean:

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public Class UserBean {
@NotNull
@Size(min = 5, max = 20)
private String name;

Page:

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   <h:inputText id="username" value="#{userBean.name}" />

[samwun9988]

If not PF specific, I know how to use it.
It doesn;'t require ANY xml file in general. I am with EJB3 - dependancy injection.

In fact, I just feel a bit difficult to use Constraint validation with PF.

Thanks
Sam

[Franke]

As said, PF has nothing to do with bean validation, and it could not get easier. Simply annotate your entites, and all error messages will appear at p:messages (or h:messages)