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(Class type)
The default implementation simply calls through to |
TagAttribute |
getBinding() |
Tag |
getTag() |
TagAttribute |
getTagAttribute(String localName) |
protected abstract TagHandlerDelegate |
getTagHandlerDelegate()
Get the tag handler delegate. |
String |
getTagId() |
boolean |
isDisabled(FaceletContext ctx) |
void |
setAttributes(FaceletContext ctx,
Object instance)
Invoking/extending this method will cause the results of the created MetaRuleset to auto-wire state to the passed
instance.
|
getAttribute, getRequiredAttribute, toString
protected 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 String getTagId()
public TagAttribute getTagAttribute(String localName)
public void setAttributes(FaceletContext ctx, Object instance)
MetaTagHandler
setAttributes
in class MetaTagHandler
ctx
- the Facelet context.instance
- the instance.public void apply(FaceletContext ctx, UIComponent parent) throws 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.IOException
- if unable to load relativePath
public void applyNextHandler(FaceletContext ctx, UIComponent c) throws 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.IOException
- if thrown by the next FaceletHandler
FaceletException
- if thrown by the next FaceletHandler
FacesException
- if thrown by the next FaceletHandler
ELException
- if thrown by the next FaceletHandler
protected MetaRuleset createMetaRuleset(Class type)
The default implementation simply calls through to TagHandlerDelegate.createMetaRuleset(java.lang.Class)
and returns the
result.
createMetaRuleset
in class MetaTagHandler
type
- the Class
for which the MetaRuleset
must be created.MetaRuleset
.Copyright © 2018,2020 Eclipse Foundation.
Use is subject to license terms.