javax.faces.component

Class UINamingContainer

java.lang.Object

javax.faces.component.UIComponent

javax.faces.component.UIComponentBase

javax.faces.component.UINamingContainer

All Implemented Interfaces:

EventListener, NamingContainer, PartialStateHolder, StateHolder, TransientStateHolder, UniqueIdVendor, ComponentSystemEventListener, FacesListener, SystemEventListenerHolder

public class UINamingContainer
extends UIComponentBase
implements NamingContainer, UniqueIdVendor, StateHolder

UINamingContainer is a convenience base class for components that wish to implement NamingContainer functionality.

Field Summary

Fields

Modifier and Type	Field and Description
static String	COMPONENT_FAMILY The standard component family for this component.
static String	COMPONENT_TYPE The standard component type for this component.
static String	SEPARATOR_CHAR_PARAM_NAME The context-param that allows the separator char for clientId strings to be set on a per-web application basis.

Fields inherited from class javax.faces.component.UIComponent

ATTRS_WITH_DECLARED_DEFAULT_VALUES, BEANINFO_KEY, bindings, COMPOSITE_COMPONENT_TYPE_KEY, COMPOSITE_FACET_NAME, CURRENT_COMPONENT, CURRENT_COMPOSITE_COMPONENT, FACETS_KEY, HONOR_CURRENT_COMPONENT_ATTRIBUTES_PARAM_NAME, VIEW_LOCATION_KEY

Fields inherited from interface javax.faces.component.NamingContainer

SEPARATOR_CHAR

Constructor Summary

Constructors

Constructor and Description
UINamingContainer() Create a new UINamingContainer instance with default property values.

Method Summary

Modifier and Type	Method and Description
String	createUniqueId(FacesContext context, String seed) Generate an identifier for a component.
String	getFamily() Return the identifier of the component family to which this component belongs.
static char	getSeparatorChar(FacesContext context) Return the character used to separate segments of a clientId.
boolean	visitTree(VisitContext context, VisitCallback callback) Perform a tree visit starting at this node in the tree.

Methods inherited from class javax.faces.component.UIComponentBase

addClientBehavior, addFacesListener, broadcast, clearInitialState, decode, encodeBegin, encodeChildren, encodeEnd, findComponent, getAttributes, getChildCount, getChildren, getClientBehaviors, getClientId, getDefaultEventName, getEventNames, getFacesContext, getFacesListeners, getFacet, getFacetCount, getFacets, getFacetsAndChildren, getId, getListenersForEventClass, getParent, getPassThroughAttributes, getRenderer, getRendererType, getRendersChildren, getValueBinding, invokeOnComponent, isRendered, isTransient, markInitialState, processDecodes, processRestoreState, processSaveState, processUpdates, processValidators, queueEvent, removeFacesListener, restoreAttachedState, restoreState, saveAttachedState, saveState, setId, setParent, setRendered, setRendererType, setTransient, setValueBinding, subscribeToEvent, unsubscribeFromEvent

Methods inherited from class javax.faces.component.UIComponent

encodeAll, getClientId, getCompositeComponentParent, getContainerClientId, getCurrentComponent, getCurrentCompositeComponent, getNamingContainer, getPassThroughAttributes, getResourceBundleMap, getStateHelper, getStateHelper, getTransientStateHelper, getTransientStateHelper, getValueExpression, initialStateMarked, isCompositeComponent, isInView, isVisitable, popComponentFromEL, processEvent, pushComponentToEL, restoreTransientState, saveTransientState, setInView, setValueExpression

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface javax.faces.component.StateHolder

isTransient, restoreState, saveState, setTransient

Field Detail

COMPONENT_TYPE

public static final String COMPONENT_TYPE

The standard component type for this component.

See Also:

Constant Field Values

COMPONENT_FAMILY

public static final String COMPONENT_FAMILY

The standard component family for this component.

See Also:

Constant Field Values

SEPARATOR_CHAR_PARAM_NAME

public static final String SEPARATOR_CHAR_PARAM_NAME

The context-param that allows the separator char for clientId strings to be set on a per-web application basis.

Since:

2.0

See Also:

Constant Field Values

Constructor Detail

UINamingContainer

public UINamingContainer()

Create a new UINamingContainer instance with default property values.

Method Detail

getFamily

public String getFamily()

Description copied from class: UIComponent

Return the identifier of the component family to which this component belongs. This identifier, in conjunction with the value of the rendererType property, may be used to select the appropriate Renderer for this component instance. Note this method should NOT return null

Specified by:

getFamily in class UIComponent

Returns:

the component family (not null).

getSeparatorChar

public static char getSeparatorChar(FacesContext context)

Return the character used to separate segments of a clientId. The implementation must determine if there is a <context-param> with the value given by the value of the symbolic constant SEPARATOR_CHAR_PARAM_NAME. If there is a value for this param, the first character of the value must be returned from this method. Otherwise, the value of the symbolic constant NamingContainer.SEPARATOR_CHAR must be returned.

Parameters:

context - the FacesContext for the current request

Returns:

the separator char.

Since:

2.0

visitTree

public boolean visitTree(VisitContext context,
                         VisitCallback callback)

Description copied from class: UIComponent

Perform a tree visit starting at this node in the tree.

UIComponent.visitTree() implementations do not invoke the VisitCallback directly, but instead call VisitContext.invokeVisitCallback(javax.faces.component.UIComponent, javax.faces.component.visit.VisitCallback) to invoke the callback. This allows VisitContext implementations to provide optimized tree traversals, for example by only calling the VisitCallback for a subset of components.

UIComponent.visitTree() implementations must call UIComponent.pushComponentToEL() before performing the visit and UIComponent.popComponentFromEL() after the visit.

Overrides:

visitTree in class UIComponent

Parameters:

context - the VisitContext for this visit

callback - the VisitCallback instance whose visit method will be called for each node visited.

Returns:

true if tree should be visited, false otherwise.

See Also:

UIComponent.visitTree(javax.faces.component.visit.VisitContext, javax.faces.component.visit.VisitCallback)

createUniqueId

public String createUniqueId(FacesContext context,
                             String seed)

Description copied from interface: UniqueIdVendor

Generate an identifier for a component. The identifier will be prefixed with UNIQUE_ID_PREFIX, and will be unique within this component-container. Optionally, a unique seed value can be supplied by component creators which should be included in the generated unique id.

Specified by:

createUniqueId in interface UniqueIdVendor

Parameters:

context - FacesContext

seed - an optional seed value - e.g. based on the position of the component in the VDL-template

Returns:

a unique-id in this component-container