JSF 2.0中的复合组件验证 [英] Composite component validation in JSF 2.0

问题描述

我在JSF 2.0中具有复合组件

I have composite component in JSF 2.0

<composite:interface>
    <composite:attribute name="inputId"/>
    <composite:attribute name="labelValue"/>
    <composite:attribute name="inputValue" />
    <composite:attribute name="required" />
    <composite:attribute name="requiredMessage" />
</composite:interface>
<composite:implementation>
    <div class="control-group">
        <h:outputLabel for="#{cc.attrs.inputId}" value="#{cc.attrs.labelValue}" class="control-label" />
        <div class="controls">
            <h:inputText id="#{cc.attrs.inputId}" value="#{cc.attrs.inputValue}" required="#{cc.attrs.required}" requiredMessage="#{cc.attrs.requiredMessage}" />
        </div>
    </div>
</composite:implementation>

，我需要对此进行一些验证(是数字，长度验证等) 那么，我该怎么做呢?

and I need to make some validation on it (is it number, lenght validation etc) So, how can I make it?

推荐答案

您需要定义要附加验证器的所需输入作为

You need to define the desired input for which you'd like to attach a validator as a <cc:editableValueHolder> in the <cc:interface>.

<cc:interface>
    <cc:editableValueHolder name="input" targets="#{cc.attrs.inputId}" />
    ...
</cc:interface>

标签基本上告诉您，任何<f:validator for="input">必须以与targets中指定的相同的id应用于UIInput组件.因此，您可以按如下所示进行注册:

The tag basically tells that any <f:validator for="input"> must be applied on the UIInput component with the same id as specified in targets. So, you can then register it as follows:

<my:input ...>
    <f:validateLength for="input" ... />
</my:input>

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