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Extensions

f:validateRequired

The f:validateRequired Facelet tag can be used to require a value from a UIInput Component. f:validateRequired activates the same validation logic as required="true" and UIInput.setRequired(true).

General Usage



                   

                  

                 

                

               

               
Source Code

               

                
                

                 

                  

                   
<ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:f="http://xmlns.jcp.org/jsf/core"
    xmlns:ui="http://xmlns.jcp.org/jsf/facelets" xmlns:h="http://xmlns.jcp.org/jsf/html">
    <h:form>
        <label class="control-label">#{i18n['required']}</label>
        <h:inputText id="required" value="#{inputTextModelBean.text}"
            label="#{i18n['f-validaterequired-label']}">
            <f:validateRequired />
        </h:inputText>
        <br />
        <h:message for="required" />
        <hr />
        <h:commandButton value="#{i18n['submit']}">
            <f:ajax execute="@form" render="@form" />
        </h:commandButton>
        <h:outputText value="#{inputTextModelBean.text}" />
    </h:form>
</ui:composition>
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@ManagedBean
@RequestScoped
public class InputTextModelBean {
    private Date date = new GregorianCalendar().getTime();
    private String text;
    public Date getDate() {
        return date;
    }
    public String getText() {
        return text;
    }
    public void setDate(Date date) {
        this.date = date;
    }
    public void setText(String text) {
        this.text = text;
    }
}
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               Liferay Faces Alloy 4.1.1 + Liferay Faces Bridge Implementation 5.0.0 + Showcase Common 4.0.0 + Liferay Faces Util 3.4.1 + Mojarra 2.2.20