Package jakarta.faces.component

Class UIGraphic

java.lang.Object

jakarta.faces.component.UIComponent

jakarta.faces.component.UIComponentBase

jakarta.faces.component.UIGraphic

All Implemented Interfaces:

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

Direct Known Subclasses:

HtmlGraphicImage

public class UIGraphic
extends UIComponentBase

UIGraphic is a UIComponent that displays a graphical image to the user. The user cannot manipulate this component; it is for display purposes only.

By default, the rendererType property must be set to "jakarta.faces.Image". This value can be changed by calling the setRendererType() method.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	COMPONENT_FAMILY	The standard component family for this component.
static final String	COMPONENT_TYPE	The standard component type for this component.

Fields inherited from class jakarta.faces.component.UIComponent

ATTRS_WITH_DECLARED_DEFAULT_VALUES, BEANINFO_KEY, bindings, COMPOSITE_COMPONENT_TYPE_KEY, COMPOSITE_FACET_NAME, FACETS_KEY, VIEW_LOCATION_KEY

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
String	getFamily()	Return the identifier of the component family to which this component belongs.
String	getUrl()	Return the image URL for this UIGraphic.
Object	getValue()	Returns the value property of the UIGraphic.
ValueExpression	getValueExpression(String name)	Return any ValueExpression set for value if a ValueExpression for url is requested; otherwise, perform the default superclass processing for this method.
void	setUrl(String url)	Set the image URL for this UIGraphic.
void	setValue(Object value)	Sets the value property of the UIGraphic.
void	setValueExpression(String name, ValueExpression binding)	Store any ValueExpression specified for url under value instead; otherwise, perform the default superclass processing for this method.

Methods inherited from class jakarta.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, invokeOnComponent, isRendered, isTransient, markInitialState, processDecodes, processRestoreState, processSaveState, processUpdates, processValidators, queueEvent, removeFacesListener, restoreAttachedState, restoreState, saveAttachedState, saveState, setId, setParent, setRendered, setRendererType, setTransient, subscribeToEvent, unsubscribeFromEvent

Methods inherited from class jakarta.faces.component.UIComponent

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

Methods inherited from class java.lang.Object

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

Field Details

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

Constructor Details

UIGraphic

public UIGraphic()

Create a new UIGraphic instance with default property values.

Method Details

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).

getUrl

public String getUrl()

Return the image URL for this UIGraphic. This method is a typesafe alias for getValue().

Returns:

the url.

setUrl

public void setUrl(String url)

Set the image URL for this UIGraphic. This method is a typesafe alias for setValue().

Parameters:

url - The new image URL

getValue

public Object getValue()

Returns the value property of the UIGraphic. This will typically be rendered as an URL.

Returns:

the value.

setValue

public void setValue(Object value)

Sets the value property of the UIGraphic. This will typically be rendered as an URL.

Parameters:

value - the new value

getValueExpression

public ValueExpression getValueExpression(String name)

Return any ValueExpression set for value if a ValueExpression for url is requested; otherwise, perform the default superclass processing for this method.

Overrides:

getValueExpression in class UIComponent

Parameters:

name - Name of the attribute or property for which to retrieve a ValueExpression

Returns:

the value expression, or null.

Throws:

NullPointerException - if name is null

Since:

1.2

setValueExpression

public void setValueExpression(String name,
 ValueExpression binding)

Store any ValueExpression specified for url under value instead; otherwise, perform the default superclass processing for this method.

Overrides:

setValueExpression in class UIComponent

Parameters:

name - Name of the attribute or property for which to set a ValueExpression

binding - The ValueExpression to set, or null to remove any currently set ValueExpression

Throws:

NullPointerException - if name is null

Since:

1.2