Summary

The group component is an invisible control that aggregates semantically-related children; the group itself has no associated client representation (visual or API). Some parent components may have special representation for groups like adding separators around the group but this is a special case and is not always rendered this way. In most cases, only the children of the group will be rendered directly to the page. There will be no layout applied to the children so the natural layout behavior of the underlying HTML elements will apply. If you require a more predictable layout, you should use a layout component such as panelGroupLayout.

Code Example(s)

Events

Type	Phases	Description
org.apache.myfaces.trinidad.event.AttributeChangeEvent	Invoke Application, Apply Request Values	Event delivered to describe an attribute change. Attribute change events are not delivered for any programmatic change to a property. They are only delivered when a renderer changes a property without the application's specific request. An example of an attribute change event might include the width of a column that supported client-side resizing.

Attributes

Name	Type	Supports EL?	Description
attributeChangeListener	javax.el.MethodExpression	Only EL	a method reference to an attribute change listener. Attribute change events are not delivered for any programmatic change to a property. They are only delivered when a renderer changes a property without the application's specific request. An example of an attribute change events might include the width of a column that supported client-side resizing.
binding	org.apache.myfaces.trinidad.component.UIXGroup	Only EL	an EL reference that will store the component instance on a bean. This can be used to give programmatic access to a component from a backing bean, or to move creation of the component to a backing bean.
endBoundary	String	Yes	Valid Values: show, hide, dontCare Default Value: dontCare indicates if a visual group end boundary is desired. The default value of 'dontCare' indicates no preference. A value of 'show' indicates a preference to show an end boundary. A value of 'hide' indicates a preference to not show an end boundary. Regardless of the end boundary value, whether a visual boundary will be displayed is up to the group's parent component.
id	String	No	the identifier for the component. Every component may be named by a component identifier that must conform to the following rules: They must start with a letter (as defined by the Character.isLetter() method) or underscore ( _ ). Subsequent characters must be letters (as defined by the Character.isLetter() method), digits as defined by the Character.isDigit() method, dashes ( - ), or underscores ( _ ). To minimize the size of responses generated by JavaServer Faces, it is recommended that component identifiers be as short as possible. If a component has been given an identifier, it must be unique in the namespace of the closest ancestor to that component that is a NamingContainer (if any).
rendered	boolean	Yes	Default Value: true whether the component is rendered. When set to false, no output will be delivered for this component (the component will not in any way be rendered, and cannot be made visible on the client). If you want to change a component's rendered attribute from false to true using PPR, set the partialTrigger attribute of its parent component so the parent refreshes and in turn will render this component.
startBoundary	String	Yes	Valid Values: show, hide, dontCare Default Value: dontCare indicates if a visual group start boundary is desired. The default value of 'dontCare' indicates no preference. A value of 'show' indicates a preference to show a start boundary. A value of 'hide' indicates a preference to not show a start boundary. Regardless of the start boundary value, whether a visual boundary will be displayed is up to the group's parent component.
title	String	Yes	a title value for the group. Whether anything is done with this title value is up to the group's parent component.