<f:view>
 <h:form id="form">   
 <p:growl id="growl" showDetail="true"  life="3000"/>
 <p:panel id="panel-----" header="-----nuzu Paylaşınız.." style="margin-bottom:10px;"> 
      <h:outputLabel for="email" value="Email"  />
    <p:inputText value="#{-----Control.-----.-----Email}" validatorMessage="Email formatını kontrol ediniz!" size="50"
     id="email" label="Email" required="true">
     <f:validateRegex pattern="[\w\.-]*[a-zA-Z0-9_]@[\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]" />
     </p:inputText>
     <p:message for="email" />    
    </p:panel>
<p:commandButton value="Ekle" actionListener="#{-----Control.save()}" icon="ui-icon-disk" update="growl,panel-----" />  
    </h:form>
    </f:view> 

<f:validateRegex pattern="[\w\.-]*[a-zA-Z0-9_]@[\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]" /> 

validatorMessage="Email formatını kontrol ediniz!" 

package Egas.View.ControllerBeans;

import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.faces.application.FacesMessage;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.validator.Validator;
import javax.faces.validator.ValidatorException;


/**
 *
 * [MENTION=21475]AuthoR[/MENTION] turgay
 */
[MENTION=88634]mana[/MENTION]gedBean(name = "-----Validator")
[MENTION=22994]RequeSt[/MENTION]Scoped
public class -----Validator implements Validator{

    private static final String EMAIL_PATTERN = "[\\w\\.-]*[a-zA-Z0-9_]@[\\w\\.-]*[a-zA-Z0-9]\\.[a-zA-Z][a-zA-Z\\.]*[a-zA-Z]";
    private Pattern pattern;
    private Matcher matcher;

    /** Creates a new instance of -----Validator */
    public -----Validator() {        

    }    

 @Override
    public void validate(FacesContext context, UIComponent component, Object value) throws ValidatorException {

        throw new UnsupportedOperationException("Format henüz desteklenmiyor.");
    }

    public void validateEmail(FacesContext context, Object value) {
        pattern = Pattern.compile(EMAIL_PATTERN);
        matcher = pattern.matcher(value.toString());
        if (!matcher.matches()) {
            FacesMessage msg =
                    new FacesMessage("Email adres hatası.",
                    "Geçersiz Email formatı.");
            msg.setSeverity(FacesMessage.SEVERITY_ERROR);
            System.out.println(msg);
            throw new ValidatorException(msg);

        }
        throw new UnsupportedOperationException("Format henüz desteklenmiyor.");
    }

}