# Uses of Package
javax.faces.component

- Packages that use javax.faces.component
  Package | Description
  --- | ---
  javax.faces.application | APIs that are used to link an application's business logic objects to JavaServer Faces, as well as convenient pluggable mechanisms to manage the execution of an application that is based on JavaServer Faces.
  javax.faces.component | Fundamental APIs for user interface components.
  javax.faces.component.behavior | APIs for attaching additional behavior to user interface components.
  javax.faces.component.html | Specialized user interface component classes for HTML.
  javax.faces.component.visit | APIs for traversing a user interface component view.
  javax.faces.context | Classes and interfaces defining per-request state information.
  javax.faces.convert | Contains classes and interfaces defining converters.
  javax.faces.event | Interfaces describing events and event listeners, and concrete event implementation classes.
  javax.faces.render | Classes and interfaces defining the rendering model.
  javax.faces.validator | Interface defining the validator model, and concrete validator implementation classes.
  javax.faces.view | Classes for defining a View Declaration Language (VDL) for authoring JavaServer Faces user interfaces.
  javax.faces.view.facelets | This package contains public classes for the Java code API of Facelets.
  javax.faces.webapp | Classes required for integration of JavaServer Faces into web applications, including a standard servlet, base classes for JSP custom component tags, and concrete tag implementations for core tags.

- Classes in javax.faces.component used by javax.faces.application
  Class and Description
  UIComponent UIComponent is the base class for all user interface components in JavaServer Faces.
  UIViewRoot UIViewRoot is the UIComponent that represents the root of the UIComponent tree.

- Classes in javax.faces.component used by javax.faces.component
  Class and Description
  ActionSource ActionSource is an interface that may be implemented by any concrete `UIComponent` that wishes to be a source of `ActionEvent`s, including the ability to invoke application actions via the default `ActionListener` mechanism.
  ActionSource2 ActionSource2 extends `ActionSource` and provides a JavaBeans property analogous to the "`action`" property on `ActionSource`.
  ContextCallback A simple callback interace that enables taking action on a specific UIComponent (either facet or child) in the view while preserving any contextual state for that component instance in the view.
  EditableValueHolder EditableValueHolder is an extension of ValueHolder that describes additional features supported by editable components, including `ValueChangeEvent`s and `Validator`s.
  NamingContainer NamingContainer is an interface that must be implemented by any `UIComponent` that wants to be a naming container.
  PartialStateHolder Components that want to leverage the partial state saving feature must implement this interface instead of implementing `StateHolder`, from which this interface inherits.
  StateHelper Define a `Map`-like contract that makes it easier for components to implement `PartialStateHolder`.
  StateHolder This interface is implemented by classes that need to save their state between requests.
  TransientStateHelper Define a `Map`-like contract that makes it easier for components to implement `TransientStateHolder`.
  TransientStateHolder This interface is implemented by classes that need to save state that is expected to be available only within the scope of the current request.
  UIComponent UIComponent is the base class for all user interface components in JavaServer Faces.
  UIComponentBase UIComponentBase is a convenience base class that implements the default concrete behavior of all methods defined by `UIComponent`.
  UIInput UIInput is a `UIComponent` that represents a component that both displays output to the user (like `UIOutput` components do) and processes request parameters on the subsequent request that need to be decoded.
  UIOutput UIOutput is a `UIComponent` that has a value, optionally retrieved from a model tier bean via a value expression, that is displayed to the user.
  UIViewParameter UIViewParameter represents a binding between a request parameter and a model property or `UIViewRoot` property.
  UniqueIdVendor UniqueIdVendor is an interface implemented by `UIComponents` that also implement `NamingContainer` so that they can provide unique ids based on their own clientId.
  ValueHolder ValueHolder is an interface that may be implemented by any concrete `UIComponent` that wishes to support a local value, as well as access data in the model tier via a value expression, and support conversion between String and the model tier data's native data type.

- Classes in javax.faces.component used by javax.faces.component.behavior
  Class and Description
  PartialStateHolder Components that want to leverage the partial state saving feature must implement this interface instead of implementing `StateHolder`, from which this interface inherits.
  StateHolder This interface is implemented by classes that need to save their state between requests.
  UIComponent UIComponent is the base class for all user interface components in JavaServer Faces.

- Classes in javax.faces.component used by javax.faces.component.html
  Class and Description
  ActionSource ActionSource is an interface that may be implemented by any concrete `UIComponent` that wishes to be a source of `ActionEvent`s, including the ability to invoke application actions via the default `ActionListener` mechanism.
  ActionSource2 ActionSource2 extends `ActionSource` and provides a JavaBeans property analogous to the "`action`" property on `ActionSource`.
  EditableValueHolder EditableValueHolder is an extension of ValueHolder that describes additional features supported by editable components, including `ValueChangeEvent`s and `Validator`s.
  NamingContainer NamingContainer is an interface that must be implemented by any `UIComponent` that wants to be a naming container.
  PartialStateHolder Components that want to leverage the partial state saving feature must implement this interface instead of implementing `StateHolder`, from which this interface inherits.
  StateHolder This interface is implemented by classes that need to save their state between requests.
  TransientStateHolder This interface is implemented by classes that need to save state that is expected to be available only within the scope of the current request.
  UIColumn UIColumn is a `UIComponent` that represents a single column of data within a parent `UIData` component.
  UICommand UICommand is a `UIComponent` that represents a user interface component which, when activated by the user, triggers an application specific "command" or "action".
  UIComponent UIComponent is the base class for all user interface components in JavaServer Faces.
  UIComponentBase UIComponentBase is a convenience base class that implements the default concrete behavior of all methods defined by `UIComponent`.
  UIData UIData is a `UIComponent` that supports data binding to a collection of data objects represented by a `DataModel` instance, which is the current value of this component itself (typically established via a `ValueExpression`).
  UIForm UIForm is a `UIComponent` that represents an input form to be presented to the user, and whose child components represent (among other things) the input fields to be included when the form is submitted.
  UIGraphic UIGraphic is a `UIComponent` that displays a graphical image to the user.
  UIInput UIInput is a `UIComponent` that represents a component that both displays output to the user (like `UIOutput` components do) and processes request parameters on the subsequent request that need to be decoded.
  UIMessage This component is responsible for displaying messages for a specific `UIComponent`, identified by a `clientId` or component id relative to the closest ancestor `NamingContainer`.
  UIMessages The renderer for this component is responsible for obtaining the messages from the `FacesContext` and displaying them to the user.
  UIOutcomeTarget This component is paired with the `javax.faces.Button` or `javax.faces.Link` renderers and encapsulates properties relating to the rendering of outcomes directly to the response.
  UIOutput UIOutput is a `UIComponent` that has a value, optionally retrieved from a model tier bean via a value expression, that is displayed to the user.
  UIPanel UIPanel is a `UIComponent` that manages the layout of its child components.
  UISelectBoolean UISelectBoolean is a `UIComponent` that represents a single boolean (`true` or `false`) value.
  UISelectMany UISelectMany is a `UIComponent` that represents the user's choice of a zero or more items from among a discrete set of available options.
  UISelectOne UISelectOne is a `UIComponent` that represents the user's choice of zero or one items from among a discrete set of available options.
  UniqueIdVendor UniqueIdVendor is an interface implemented by `UIComponents` that also implement `NamingContainer` so that they can provide unique ids based on their own clientId.
  ValueHolder ValueHolder is an interface that may be implemented by any concrete `UIComponent` that wishes to support a local value, as well as access data in the model tier via a value expression, and support conversion between String and the model tier data's native data type.

- Classes in javax.faces.component used by javax.faces.component.visit
  Class and Description
  UIComponent UIComponent is the base class for all user interface components in JavaServer Faces.

- Classes in javax.faces.component used by javax.faces.context
  Class and Description
  UIComponent UIComponent is the base class for all user interface components in JavaServer Faces.
  UIViewRoot UIViewRoot is the UIComponent that represents the root of the UIComponent tree.

- Classes in javax.faces.component used by javax.faces.convert
  Class and Description
  PartialStateHolder Components that want to leverage the partial state saving feature must implement this interface instead of implementing `StateHolder`, from which this interface inherits.
  StateHolder This interface is implemented by classes that need to save their state between requests.
  UIComponent UIComponent is the base class for all user interface components in JavaServer Faces.

- Classes in javax.faces.component used by javax.faces.event
  Class and Description
  StateHolder This interface is implemented by classes that need to save their state between requests.
  UIComponent UIComponent is the base class for all user interface components in JavaServer Faces.
  UIViewRoot UIViewRoot is the UIComponent that represents the root of the UIComponent tree.

- Classes in javax.faces.component used by javax.faces.render
  Class and Description
  UIComponent UIComponent is the base class for all user interface components in JavaServer Faces.

- Classes in javax.faces.component used by javax.faces.validator
  Class and Description
  PartialStateHolder Components that want to leverage the partial state saving feature must implement this interface instead of implementing `StateHolder`, from which this interface inherits.
  StateHolder This interface is implemented by classes that need to save their state between requests.
  UIComponent UIComponent is the base class for all user interface components in JavaServer Faces.

- Classes in javax.faces.component used by javax.faces.view
  Class and Description
  UIComponent UIComponent is the base class for all user interface components in JavaServer Faces.
  UIViewAction UIViewAction represents a method invocation that occurs during the request processing lifecycle, usually in response to an initial request, as opposed to a postback.
  UIViewParameter UIViewParameter represents a binding between a request parameter and a model property or `UIViewRoot` property.
  UIViewRoot UIViewRoot is the UIComponent that represents the root of the UIComponent tree.

- Classes in javax.faces.component used by javax.faces.view.facelets
  Class and Description
  UIComponent UIComponent is the base class for all user interface components in JavaServer Faces.

- Classes in javax.faces.component used by javax.faces.webapp
  Class and Description
  UIComponent UIComponent is the base class for all user interface components in JavaServer Faces.
  UIOutput UIOutput is a `UIComponent` that has a value, optionally retrieved from a model tier bean via a value expression, that is displayed to the user.

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