Validation: Validation is a process of checking something against a standard. What is a validator? In programming validator is used to perform the validation process. JSF validator tags: JSF provides inbuilt validators to validate the UI component data. JSF validators can validates length, type, format etc. For using JSF validator tags we have to use … Read more
JSF Custom Converter Example: Let us discuss how to create custom converter in JSF with example. Steps to create custom converter in JSF: 1. First create a converter class by implementing javax.faces.convert.Converter interface 2. Override getAsObject() and getAsString() methods of above interface. 3. Assign a unique converter ID to the custom convertor by using @FacesConverter … Read more
JSF f convertdatetime tag: JSF f:convertdatetime tag is a standard JSF converter which is used to converts a string into a date of specific format. It is also used for date format validation. JSF convertdatetime tag attributes: Attribute Description type date (default), time, or both dateStyle default, short, medium, long, or full timeStyle default, short, … Read more
JSF f convertnumber tag: JSF f:convertNumber tag is a standard JSF converter which is used to converts a string into a number of specific format. It is also used for valid number validation. JSF converter tag attributes: Attribute Description 1. type number (default), currency , or percent 2. pattern Formatting pattern, as defined in java.text.DecimalFormat … Read more
What is a converter? In programming converter is used to transform the component data from strings to Java objects and vice versa. JSF converter tags: JSF provides inbuilt converters to transform the UI component data from strings to Java objects used in a managed bean and vice versa. For example a date object is represented … Read more
JSF h:commandButton tag is used to render HTML input of type=”submit” button. JSF tag: <h:commandButton value="Click Here" /><h:commandButton value="Click Here" /> Rendered HTML tag: <input type="submit" name="j_idt10:j_idt13" value="Click Here" /><input type="submit" name="j_idt10:j_idt13" value="Click Here" /> Attribute of h:commandButton tag: Attribute Description id id for the tag rendered A boolean value; false would suppress rendering styleClass … Read more
JSF h:selectManyListbox tag is used to render a multiple select HTML input element of the type “select” with size and multiple specified. JSF tag: <h:selectManyListbox value="#{testBean.data}" /> <f:selectItem itemValue="1" itemLabel="Item 1" /> <f:selectItem itemValue="2" itemLabel="Item 2" /> </h:selectManyListbox><h:selectManyListbox value="#{testBean.data}" /> <f:selectItem itemValue="1" itemLabel="Item 1" /> <f:selectItem itemValue="2" itemLabel="Item 2" /> </h:selectManyListbox> Rendered HTML tag: <select … Read more
JSF h:selectOneListbox tag is used to render a single select HTML input element of the type “select” with size specified. JSF tag: <h:selectOneListbox value="#{testBean.data}" /> <f:selectItem itemValue="1" itemLabel="Item 1" /> <f:selectItem itemValue="2" itemLabel="Item 2" /> </h:selectOneListbox><h:selectOneListbox value="#{testBean.data}" /> <f:selectItem itemValue="1" itemLabel="Item 1" /> <f:selectItem itemValue="2" itemLabel="Item 2" /> </h:selectOneListbox> Rendered HTML tag: <select name="j_idt6:j_idt8" size="2"> … Read more
JSF h:selectOneRadio tag is used to render a single HTML radio button and provides the formatting with HTML table and label tags. JSF tag: <h:selectOneRadio value="#{testBean.data}" /> <f:selectItem itemValue="1" itemLabel="Item 1" /> <f:selectItem itemValue="2" itemLabel="Item 2" /> </h:selectOneRadio><h:selectOneRadio value="#{testBean.data}" /> <f:selectItem itemValue="1" itemLabel="Item 1" /> <f:selectItem itemValue="2" itemLabel="Item 2" /> </h:selectOneRadio> Rendered HTML tag: <table> … Read more
JSF f:setPropertyActionListener tag is used set a value directly into managed bean’s property. It uses setter method of the property for assigning the value. Example: Test.java import javax.faces.bean.ManagedBean; import javax.faces.bean.SessionScoped; /** * Managed bean. * @author w3schools */ @ManagedBean(name="test") @SessionScoped public class Test { private String userName; public String getUserName() { return userName; … Read more