Class DelegatingMetaTagHandler
- java.lang.Object
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- javax.faces.view.facelets.TagHandler
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- javax.faces.view.facelets.MetaTagHandler
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- javax.faces.view.facelets.DelegatingMetaTagHandler
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- All Implemented Interfaces:
FaceletHandler
- Direct Known Subclasses:
ComponentHandler
,FaceletsAttachedObjectHandler
public abstract class DelegatingMetaTagHandler extends MetaTagHandler
Enable the JSF 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 JSF runtime provides the implementation ofgetTagHandlerDelegate()
for the appropriate subclass.
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Field Summary
Fields Modifier and Type Field Description protected TagHandlerDelegateFactory
delegateFactory
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Fields inherited from class javax.faces.view.facelets.TagHandler
nextHandler, tag, tagId
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Constructor Summary
Constructors Constructor Description DelegatingMetaTagHandler(TagConfig config)
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description void
apply(FaceletContext ctx, UIComponent parent)
The default implementation simply calls through toTagHandlerDelegate.apply(javax.faces.view.facelets.FaceletContext, javax.faces.component.UIComponent)
.void
applyNextHandler(FaceletContext ctx, UIComponent c)
Invoke theapply()
method on this instance'sTagHandler.nextHandler
.protected MetaRuleset
createMetaRuleset(java.lang.Class type)
The default implementation simply calls through toTagHandlerDelegate.createMetaRuleset(java.lang.Class)
and returns the result.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.-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from class javax.faces.view.facelets.TagHandler
getAttribute, getRequiredAttribute, toString
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Field Detail
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delegateFactory
protected TagHandlerDelegateFactory delegateFactory
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Constructor Detail
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DelegatingMetaTagHandler
public DelegatingMetaTagHandler(TagConfig config)
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Method Detail
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getTagHandlerDelegate
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.
- Returns:
- the tag handler delegate.
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isDisabled
public boolean isDisabled(FaceletContext ctx)
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getBinding
public TagAttribute getBinding()
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getTag
public Tag getTag()
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getTagId
public java.lang.String getTagId()
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getTagAttribute
public TagAttribute getTagAttribute(java.lang.String localName)
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setAttributes
public void setAttributes(FaceletContext ctx, java.lang.Object instance)
Description copied from class:MetaTagHandler
Invoking/extending this method will cause the results of the created MetaRuleset to auto-wire state to the passed instance.- Overrides:
setAttributes
in classMetaTagHandler
- Parameters:
ctx
- the Facelet context.instance
- the instance.
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apply
public void apply(FaceletContext ctx, UIComponent parent) throws java.io.IOException
The default implementation simply calls through to
TagHandlerDelegate.apply(javax.faces.view.facelets.FaceletContext, javax.faces.component.UIComponent)
.- Parameters:
ctx
- theFaceletContext
for this view executionparent
- the parentUIComponent
of the component represented by this element instance.- Throws:
java.io.IOException
- if unable to loadrelativePath
- Since:
- 2.0
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applyNextHandler
public void applyNextHandler(FaceletContext ctx, UIComponent c) throws java.io.IOException, FacesException, ELException
Invoke the
apply()
method on this instance'sTagHandler.nextHandler
.- Parameters:
ctx
- theFaceletContext
for this view executionc
- theUIComponent
of the component represented by this element instance.- Throws:
java.io.IOException
- if thrown by the nextFaceletHandler
FaceletException
- if thrown by the nextFaceletHandler
FacesException
- if thrown by the nextFaceletHandler
ELException
- if thrown by the nextFaceletHandler
- Since:
- 2.0
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createMetaRuleset
protected MetaRuleset createMetaRuleset(java.lang.Class type)
The default implementation simply calls through to
TagHandlerDelegate.createMetaRuleset(java.lang.Class)
and returns the result.- Specified by:
createMetaRuleset
in classMetaTagHandler
- Parameters:
type
- theClass
for which theMetaRuleset
must be created.- Returns:
- the
MetaRuleset
. - Since:
- 2.0
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