public abstract class TagHandler extends java.lang.Object implements FaceletHandler
Foundation class for
FaceletHandler
s associated with a markup element in a
Facelet document. This class introduces the concept of XML attributes to Facelets. See the constructor
documentation for more details.
Modifier and Type | Field and Description |
---|---|
protected FaceletHandler |
nextHandler
A reference to the
|
protected Tag |
tag
A reference to the |
protected java.lang.String |
tagId
See |
Constructor and Description |
---|
TagHandler(TagConfig config)
Every |
Modifier and Type | Method and Description |
---|---|
protected TagAttribute |
getAttribute(java.lang.String localName)
Utility method for fetching the appropriate TagAttribute
|
protected TagAttribute |
getRequiredAttribute(java.lang.String localName)
Utility method for fetching a required TagAttribute
|
java.lang.String |
toString() |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
apply
protected final java.lang.String tagId
See TagConfig.getTagId()
.
protected final Tag tag
A reference to the Tag
instance corresponding to this TagHandler
instance.
protected final FaceletHandler nextHandler
A reference to the
FaceletHandler
that represents the first nested
child of this TagHandler
instance.
public TagHandler(TagConfig config)
Every TagHandler
instance is associated with a Tag
. Each Tag
instance has a TagAttributes
property, which is simply a
collection of TagAttribute
instances. Extract and save
as protected instance variables the TagConfig.getTagId()
,
TagConfig.getTag()
and TagConfig.getNextHandler()
returns from the argument TagConfig
. This
constructor is only called when the Facelets View is compiled.
config
- The structure that contains useful to the operation
of this instance.protected final TagAttribute getAttribute(java.lang.String localName)
localName
- name of attributeprotected final TagAttribute getRequiredAttribute(java.lang.String localName) throws TagException
localName
- name of the attributeTagException
- if the attribute was not foundpublic java.lang.String toString()
toString
in class java.lang.Object