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If

Conditionally renders its body. May render its tag and any informal parameters

Case

Not really a component, but a technique to emulate a "case" statement using a delegate

Loop

Loops over a number of items (provided by its source parameter), rendering its body for each one]

Unless

Inverse of the If component, renders its body if the condition is false.

Delegate

Does not do any rendering of its own, but will delegate to some other object that can do rendering

Checkbox

Renders a standard <input type="checkbox"> element

Checklist

Renders a vertical list of <input type="checkbox"> elements

DateField

Collect a provided date from the user using a client-side JavaScript calendar

Form

An HTML form, which will enclose other components to render out the various types of fields.

FormFragment

A portion of a Form that may be selectively displayed

Hidden

Used to record a page property as a value into the form

Label

Generates a label element for a particular field

KaptchaField

Part of a Captcha based authentication scheme; a KaptchaField is paired with a KaptchaImage to ensure that the user has provided the correct value

KaptchaImage

Part of a Captcha based authentication scheme; a KaptchaImage generates a new text image whenever it renders and can provide the previously rendred text subsequently (it is stored persistently in the session)

Palette

A multiple selection component. Generates a UI consisting of two select elements configured for multiple selection; the one on the left is the list of "available" elements, the one on the right is "selected".

PasswordField

A version of TextField, but rendered out as an <input type="password"> element.

Radio

A radio button (i.e., <input type="radio">). Radio buttons must operate within a RadioContainer (normally, the RadioGroup component).

RadioGroup

Groups together a set of radio components that all affect the same property

Select

Renders a <select> element for selecting an item from a list of values

SubmitNotifier

A non visual component used to provide notifications to its container during a form submission

TextArea

Renders a <textarea> element for editing multi-line text

TextField

Renders an <input type="text"> element to edit single-line text

Upload

A file upload component (i.e., <input type="file">) based on Apache Commons FileUpload

Grid

Presents tabular data in a <table> element by iterating over a List or array

GridCell

Part of Grid, renders the markup inside a single data cell

GridColumns

Part of Grid, renders out the column headers for the grid, including links (where appropriate) to control column sorting

GridPager

Generates a series of links used to jump to a particular page index within the overall data set

GridRows

Renders out a series of rows within the table

Tree

A component used to render a recursive tree structure, with expandable/collapsable/selectable nodes.

ActionLink

Triggers an action on the server with a subsequent full page refresh

EventLink

Like ActionLink except that the event that it triggers is explicitly controlled, rather than always "action", and the event is triggered in its container

LinkSubmit

Generates a client-side hyperlink that submits the enclosing form

Submit

Corresponds to <input type="submit"> or <input type="image">, a client-side element that can force the enclosing form to submit

PageLink

Generates a render request link to some other page in the application

Alerts

Renders out an empty <div> element and provides JavaScript initialization to make the element the container for alerts.

Dynamic

Allows a component to render itself differently at different times, by making use of an external template file.

Error

Presents validation errors of a single field. Must be enclosed by a Form component

Errors

Standard validation error presenter. Must be enclosed by a Form component. If errors are present, renders a div element around a banner message and around an unnumbered list of error messages

ExceptionDisplay

Integral part of the default ExceptionReport page used to break apart and display the properties of the exception

Output

A component for formatting output. If the component is represented in the template using an element, then the element (plus any informal parameters) will be output around the formatted value.

OutputRaw

Output raw markup to the client. Unlike an expansion, the output from OutputRaw is unfiltered, with any special characters or entities left exactly as is.

TextOutput

Outputs paragraph oriented text, typically collected via a TextArea component. The TextArea is split into lines, and each line it output inside its own p element.

Any

Renders an arbitrary element including informal parameters

Doctype

Overrides the DOCTYPE of the rendered document (via Document.dtd(String, String, String) which can be useful when different component templates that render to the same document disagree about what the correct DOCTYPE is.

RenderObject

Renders out an object using the ObjectRenderer service. Used primarily on the ExceptionReport page

Trigger

Triggers an arbitrary event during rendering. This is often useful to add JavaScript to a page or a component (via calls to the JavaScriptSupport environmental).