public abstract class DelegatingMetaTagHandler extends MetaTagHandler
Enable the Jakarta Server Faces implementation to provide the
appropriate behavior for the kind of MetaTagHandler subclass for each kind of element in the view, while
providing a base-class from which those wanting to make a Java language custom tag handler can inherit. The Jakarta
Server Faces runtime provides the implementation of getTagHandlerDelegate() for the appropriate subclass.
| Modifier and Type | Field and Description |
|---|---|
protected TagHandlerDelegateFactory |
delegateFactory |
nextHandler, tag, tagId| Constructor and Description |
|---|
DelegatingMetaTagHandler(TagConfig config) |
| Modifier and Type | Method and Description |
|---|---|
void |
apply(FaceletContext ctx,
UIComponent parent)
The default implementation simply calls through to |
void |
applyNextHandler(FaceletContext ctx,
UIComponent c)
Invoke the |
protected MetaRuleset |
createMetaRuleset(java.lang.Class type)
The default implementation simply calls through to |
TagAttribute |
getBinding() |
Tag |
getTag() |
TagAttribute |
getTagAttribute(java.lang.String localName) |
protected abstract TagHandlerDelegate |
getTagHandlerDelegate()
Get the tag handler delegate. |
java.lang.String |
getTagId() |
boolean |
isDisabled(FaceletContext ctx) |
void |
setAttributes(FaceletContext ctx,
java.lang.Object instance)
Invoking/extending this method will cause the results of the created MetaRuleset to auto-wire state to the passed
instance.
|
getAttribute, getRequiredAttribute, toStringprotected TagHandlerDelegateFactory delegateFactory
public DelegatingMetaTagHandler(TagConfig config)
protected abstract TagHandlerDelegate getTagHandlerDelegate()
Get the tag handler delegate.
Code that extends from DelegatingMetaTagHandler (directly or indirectly, as through extending ComponentHandler) must take care to decorate, not replace, the TagHandlerDelegate instance returned by this method. Failure to do so may produce unexpected results.
public boolean isDisabled(FaceletContext ctx)
public TagAttribute getBinding()
public Tag getTag()
public java.lang.String getTagId()
public TagAttribute getTagAttribute(java.lang.String localName)
public void setAttributes(FaceletContext ctx, java.lang.Object instance)
MetaTagHandlersetAttributes in class MetaTagHandlerctx - the Facelet context.instance - the instance.public void apply(FaceletContext ctx, UIComponent parent) throws java.io.IOException
The default implementation simply calls through to TagHandlerDelegate.apply(jakarta.faces.view.facelets.FaceletContext, jakarta.faces.component.UIComponent).
ctx - the FaceletContext for this view executionparent - the parent UIComponent of the component represented by this element instance.java.io.IOException - if unable to load relativePathpublic void applyNextHandler(FaceletContext ctx, UIComponent c) throws java.io.IOException, FacesException, ELException
Invoke the apply() method on this instance's TagHandler.nextHandler.
ctx - the FaceletContext for this view executionc - the UIComponent of the component represented by this element instance.java.io.IOException - if thrown by the next FaceletHandlerFaceletException - if thrown by the next FaceletHandlerFacesException - if thrown by the next FaceletHandlerELException - if thrown by the next FaceletHandlerprotected MetaRuleset createMetaRuleset(java.lang.Class type)
The default implementation simply calls through to TagHandlerDelegate.createMetaRuleset(java.lang.Class) and returns the
result.
createMetaRuleset in class MetaTagHandlertype - the Class for which the MetaRuleset must be created.MetaRuleset.