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Faces Core
Facelets
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