Klasse EventHandler
java.lang.Object
jakarta.faces.view.facelets.TagHandler
jakarta.faces.view.facelets.MetaTagHandler
jakarta.faces.view.facelets.DelegatingMetaTagHandler
jakarta.faces.view.facelets.ComponentHandler
org.apache.myfaces.tobago.facelets.TobagoComponentHandler
org.apache.myfaces.tobago.facelets.EventHandler
- Alle implementierten Schnittstellen:
jakarta.faces.view.AttachedObjectHandler
,jakarta.faces.view.BehaviorHolderAttachedObjectHandler
,jakarta.faces.view.facelets.FaceletHandler
public class EventHandler
extends TobagoComponentHandler
implements jakarta.faces.view.BehaviorHolderAttachedObjectHandler
This tag creates an instance of AjaxBehavior, and associates it with the nearest
parent UIComponent that implements ClientBehaviorHolder interface. This tag can
be used on single or composite components.
Unless otherwise specified, all attributes accept static values or EL expressions.
According to the documentation, the tag handler implementing this tag should meet the following conditions:
- Since this tag attach objects to UIComponent instances, and those instances implements Behavior interface, this component should implement BehaviorHolderAttachedObjectHandler interface.
- f:ajax does not support binding property. In theory we should do something similar to f:convertDateTime tag does: extends from ConverterHandler and override setAttributes method, but in this case BehaviorTagHandlerDelegate has binding property defined, so if we extend from BehaviorHandler we add binding support to f:ajax.
- This tag works as a attached object handler, but note on the api there is no component to define a target for a behavior. See comment inside apply() method.
- Seit:
- 3.0.0
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Verschachtelte Klassen - Übersicht
Verschachtelte KlassenModifizierer und TypKlasseBeschreibungstatic final class
Wraps a method expression in a AjaxBehaviorListener -
Feldübersicht
FelderVon Klasse geerbte Felder jakarta.faces.view.facelets.DelegatingMetaTagHandler
delegateFactory
Von Klasse geerbte Felder jakarta.faces.view.facelets.TagHandler
nextHandler, tag, tagId
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Konstruktorübersicht
Konstruktoren -
Methodenübersicht
Modifizierer und TypMethodeBeschreibungvoid
apply
(jakarta.faces.view.facelets.FaceletContext ctx, jakarta.faces.component.UIComponent parent) void
applyAttachedObject
(jakarta.faces.context.FacesContext context, jakarta.faces.component.UIComponent parent) This method should create an AjaxBehavior object and attach it to the parent component.protected EventBehavior
createBehavior
(jakarta.faces.context.FacesContext context) ViewDeclarationLanguage.retargetAttachedObjects uses it to check if the the target to be processed is applicable for this handlergetFor()
The documentation says this attribute should not be used since it is not taken into account.void
onComponentCreated
(jakarta.faces.view.facelets.FaceletContext faceletContext, jakarta.faces.component.UIComponent component, jakarta.faces.component.UIComponent parent) Von Klasse geerbte Methoden org.apache.myfaces.tobago.facelets.TobagoComponentHandler
createMetaRuleset, onComponentPopulated
Von Klasse geerbte Methoden jakarta.faces.view.facelets.ComponentHandler
createComponent, getComponentConfig, getTagHandlerDelegate, isNew
Von Klasse geerbte Methoden jakarta.faces.view.facelets.DelegatingMetaTagHandler
applyNextHandler, getBinding, getTag, getTagAttribute, getTagId, isDisabled, setAttributes
Von Klasse geerbte Methoden jakarta.faces.view.facelets.TagHandler
getAttribute, getRequiredAttribute, toString
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Felddetails
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AJAX_BEHAVIOR_LISTENER_SIG
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Konstruktordetails
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EventHandler
public EventHandler(jakarta.faces.view.facelets.ComponentConfig config)
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Methodendetails
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apply
public void apply(jakarta.faces.view.facelets.FaceletContext ctx, jakarta.faces.component.UIComponent parent) throws IOException - Angegeben von:
apply
in Schnittstellejakarta.faces.view.facelets.FaceletHandler
- Setzt außer Kraft:
apply
in Klassejakarta.faces.view.facelets.DelegatingMetaTagHandler
- Löst aus:
IOException
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getEventName
ViewDeclarationLanguage.retargetAttachedObjects uses it to check if the the target to be processed is applicable for this handler- Angegeben von:
getEventName
in Schnittstellejakarta.faces.view.BehaviorHolderAttachedObjectHandler
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applyAttachedObject
public void applyAttachedObject(jakarta.faces.context.FacesContext context, jakarta.faces.component.UIComponent parent) This method should create an AjaxBehavior object and attach it to the parent component.Also, it should check if the parent can apply the selected AjaxBehavior to the selected component through ClientBehaviorHolder.getEventNames() or ClientBehaviorHolder.getDefaultEventName()
- Angegeben von:
applyAttachedObject
in Schnittstellejakarta.faces.view.AttachedObjectHandler
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createBehavior
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onComponentCreated
public void onComponentCreated(jakarta.faces.view.facelets.FaceletContext faceletContext, jakarta.faces.component.UIComponent component, jakarta.faces.component.UIComponent parent) - Setzt außer Kraft:
onComponentCreated
in Klassejakarta.faces.view.facelets.ComponentHandler
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getFor
The documentation says this attribute should not be used since it is not taken into account. Instead, getEventName is used on ViewDeclarationLanguage.retargetAttachedObjects.- Angegeben von:
getFor
in Schnittstellejakarta.faces.view.AttachedObjectHandler
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