[OmniFaces utilities (2.0)] Check if the given string is parseable as a number/decimal

---

[OmniFaces utilities] The isNumber() method returns true if the given string is parseable as a number. I.e. it is not null, nor blank and contains solely digits. I.e., it won't throw a NumberFormatException when parsing as Long.
[OmniFaces utilities] The isDecimal() method returns true if the given string is parseable as a decimal. I.e. it is not null, nor blank and contains solely digits. I.e., it won't throw a NumberFormatException when parsing as Double.

---

Method Utils#isNumber():

 Method Utils#isDecimal():

Usage:

import org.omnifaces.util.Utils;

...

String a = "";

String b = "3";

String c = "3L";

String d = "3.14";

String e = "3.14f";

String f = "3.14d";

// a

boolean isANumber = Utils.isNumber(a);   // false

boolean isADecimal = Utils.isDecimal(a); // false

// b

boolean isBNumber = Utils.isNumber(b);   // true

boolean isBDecimal = Utils.isDecimal(b); // true

// c

boolean isCNumber = Utils.isNumber(c);   // false

boolean isCDecimal = Utils.isDecimal(c); // false

// d

boolean isDNumber = Utils.isNumber(d);   // false

boolean isDDecimal = Utils.isDecimal(d); // true

// e

boolean isENumber = Utils.isNumber(e);   // false

boolean isEDecimal = Utils.isDecimal(e); // true

// f

boolean isFNumber = Utils.isNumber(f);   // false

boolean isFDecimal = Utils.isDecimal(f); // true

API GH

[JSF Page Author Beginner's Guide] JSF <inputSecret> / HTML5 <input> [password]

The <h:inputSecret> renders an HTML "input" element of "type" "password"

VDL / HtmlInputSecret / HTML Reference

Common/basic usage in JSF:

<?xml version='1.0' encoding='UTF-8' ?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml"     

      xmlns:h="http://xmlns.jcp.org/jsf/html">

 <h:head>

  <title>JSF inputSecret examples</title>        

 </h:head>

 <h:body>

  <h:form>

   Password: <h:inputSecret value="#{playerBean.password}" />

   <h:commandButton value="Send" action="data" />

  </h:form>

 </h:body>

</html>

The <h:inputSecret> will be rendered in HTML as:

<input type="password" name="j_id6:j_id8" value="" />

The PlayerBean will be:

package beans;

import java.io.Serializable;

import javax.enterprise.context.SessionScoped;

import javax.inject.Named;

@Named

@SessionScoped

public class PlayerBean implements Serializable{

   

 private String password;

 public String getPassword() {

  return password;

 }

 public void setPassword(String password) {

  this.password = password;

 }

}

And the data.xhtml page simply display the user password:

<?xml version='1.0' encoding='UTF-8' ?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml"    

      xmlns:h="http://xmlns.jcp.org/jsf/html">

 <h:head>

  <title></title>        

 </h:head>

 <h:body>

  <!-- View submitted data -->           

  Password: <h:outputText value="#{playerBean.password}"/>    

 </h:body>

</html>

Data flow in image:

More examples:

---

Add xmlns:pt="http://xmlns.jcp.org/jsf/passthrough" for pass-through attributes

---

Simple tooltip usage

<h:form>

 Password: <h:inputSecret value="#{playerBean.password}" title="Enter password here"/>

 <h:commandButton value="Send" action="data"/>

</h:form>

---

Simple inline style

<h:form>

 Password: <h:inputSecret value="#{playerBean.password}" style="color: red; background-color: black;"/>

 <h:commandButton value="Send" action="data"/>

</h:form>

Simple CSS style

<h:form>

 Password : <h:inputSecret value="#{playerBean.password}" styleClass="password" />

 <h:commandButton value="Send" action="data" />

</h:form>

---

Make a required password text box via JSF (see below via HTML 5)

<h:form>

 Password : <h:inputSecret value="#{playerBean.password}" required="true" requiredMessage="Please, provide a password!"/>

 <h:commandButton value="Send" action="data"/>

</h:form>

---

Make a required password text box via HTML 5, required="true"

<!-- for any case add JSF attribute required="true" also -->       

<h:form>

 Password : <h:inputSecret value="#{playerBean.password}" pt:required="true" required="true" requiredMessage="Please, provide a password!"/>

 <h:commandButton value="Send" action="data"/>

</h:form>

---

Make an password text box with placeholder via HTML 5, placeholder="some_placeholder"

<h:form>

 Password: <h:inputSecret value="#{playerBean.password}" pt:placeholder = "Type a password"/>

 <h:commandButton value="Send" action="data"/>

</h:form>   

---

Make an password text box with autofocus via HTML 5, autofocus="true"

<h:form>

 Password: <h:inputSecret value="#{playerBean.password}" pt:autofocus = "true"/>

 <h:commandButton value="Send" action="data"/>

</h:form>

---

Make a password pattern text box via HTML 5, pattern="some_pattern" (e.g. minim 6 characters long)

 Password: <h:inputSecret value="#{playerBean.password}" pt:pattern=".{6,}" pt:required="true" required="true"/>

 <h:commandButton value="Send" action="data"/>

</h:form>

---

Complete source code on GitHub.
See also Mkyong.com.
More resources on Constantin Alin, ZEEF page.
InputSecret in JSF Extension on JSF ShowCase ZEEF page.