Using the Core Tags

The tags included in the JavaServer Faces core tag library are used to perform core actions that are independent of a particular render kit. These tags are listed in Table 18-1.

Table 18-1 The jsf_core Tags
Tag Categories	Tags	Functions
Event-handling tags	`actionListener`	Registers an action listener on a parent component
Event-handling tags	`valueChangeListener`	Registers a value-change listener on a parent component
Attribute configuration tag	`attribute`	Adds configurable attributes to a parent component
Data conversion tags	converter	Registers an arbitrary converter on the parent component
	`convertDateTime`	Registers a `DateTime` converter instance on the parent component
	`convertNumber`	Registers a `Number` converter instance on the parent component
Facet tag	`facet`	Signifies a nested component that has a special relationship to its enclosing tag
Localization tag	`loadBundle`	Specifies a `ResourceBundle` that is exposed as a `Map`
Parameter substitution tag	`param`	Substitutes parameters into a `MessageFormat` instance and adds query string name-value pairs to a URL
Tags for representing items in a list	selectItem	Represents one item in a list of items in a `UISelectOne` or `UISelectMany` component
Tags for representing items in a list	selectItems	Represents a set of items in a `UISelectOne` or `UISelectMany` component
Container tag	`subview`	Contains all JavaServer Faces tags in a page that is included in another JSP page containing JavaServer Faces tags
Validator tags	`validateDoubleRange`	Registers a `DoubleRangeValidator` on a component
	`validateLength`	Registers a `LengthValidator` on a component
	`validateLongRange`	Registers a `LongRangeValidator` on a component
	`validator`	Registers a custom validator on a component
Output tag	`verbatim`	Generates a `UIOutput` component that gets its content from the body of this tag
Container for form tags	`view`	Encloses all JavaServer Faces tags on the page

These tags are used in conjunction with component tags and are therefore explained in other sections of this tutorial. Table 18-2 lists the sections that explain how to use specific jsf_core tags.

Tags	Where Explained
Event-handling tags	Registering Listeners on Components
Data conversion tags	Using the Standard Converters
`facet`	The UIData Component and The UIPanel Component
`loadBundle`	Using Localized Messages
`param`	Using the outputFormat Tag and
selectItem and selectItems	The UISelectItem, UISelectItems, and UISelectItemGroup Components
subview	Setting Up a Page
`verbatim`	Using the outputLink Tag
`view`	Setting Up a Page
Validator tags	Using the Standard Validators and Creating a Custom Validator