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https://issues.apache.org/jira/browse/MYFACES-4438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17684777#comment-17684777
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Thomas Andraschko commented on MYFACES-4438:
--------------------------------------------
[~volosied] IMO it reads like it should only be available via Build-Time and
therefor not safe to use all the time.
should we close it?
> Clarify FaceletContext.getAttribute() (Retrieving ui:param from bean)
> ----------------------------------------------------------------------
>
> Key: MYFACES-4438
> URL: https://issues.apache.org/jira/browse/MYFACES-4438
> Project: MyFaces Core
> Issue Type: Bug
> Affects Versions: 2.0.24, 2.2.15, 2.3.10, 3.0.2
> Reporter: Volodymyr Siedlecki
> Priority: Minor
> Attachments: MYFACES4438.zip
>
>
> {color:#0e101a}I have a scenario with the following code where retrieving
> "dataId{color}" from the FaceletContext return null.
>
> index.xhtml:
> {quote}{color:#808080}<{color}{color:#569cd6}ui:composition{color}{color:#d4d4d4}
>
> {color}{color:#9cdcfe}template{color}{color:#d4d4d4}={color}{color:#ce9178}"layout.xhtml"{color}{color:#808080}>{color}{color:#d4d4d4}
> {color}{color:#808080}<{color}{color:#569cd6}ui:param{color}{color:#d4d4d4}
> {color}{color:#9cdcfe}name{color}{color:#d4d4d4}={color}{color:#ce9178}"dataId"{color}{color:#d4d4d4}
>
> {color}{color:#9cdcfe}value{color}{color:#d4d4d4}={color}{color:#ce9178}"foo"{color}{color:#808080}
> /></{color}{color:#569cd6}ui:composition{color}{color:#808080}>{color}
> {quote}
> {color:#0e101a}Managed Bean:{color}
> {quote}{color:#d4d4d4}
> {color}{color:#4ec9b0}FaceletContext{color}{color:#d4d4d4}
> {color}{color:#9cdcfe}faceletContext{color}{color:#d4d4d4} =
> ({color}{color:#4ec9b0}FaceletContext{color}{color:#d4d4d4}){color}{color:#9cdcfe}FacesContext{color}{color:#d4d4d4}.{color}{color:#dcdcaa}getCurrentInstance{color}{color:#d4d4d4}().{color}{color:#dcdcaa}getAttributes{color}{color:#d4d4d4}().{color}{color:#dcdcaa}get{color}{color:#d4d4d4}({color}{color:#9cdcfe}FaceletContext{color}{color:#d4d4d4}.{color}{color:#9cdcfe}FACELET_CONTEXT_KEY{color}{color:#d4d4d4});{color}
> {color:#9cdcfe}
> faceletContext{color}{color:#d4d4d4}.{color}{color:#dcdcaa}getAttribute{color}{color:#d4d4d4}({color}{color:#ce9178}"dataId"{color}{color:#d4d4d4}){color}
>
> {quote}
> {color:#0e101a} {color}
> {color:#0e101a}I found that this code above works in Mojarra 2.2.x but not in
> MyFaces. I also found some variation in behavior between versions in
> MyFaces.{color}
>
> {color:#0e101a}Myfaces 2.0.25:
> FacesContext.getCurrentInstance().getAttributes().get(FaceletContext.FACELET_CONTEXT_KEY)
> returns null {color}
>
> {color:#0e101a}MyFaces 2.2.0 and higher:
> faceletContext.getAttribute("dataId"); returns null{color}
>
> However, if the
> "{color:#9cdcfe}faceletContext{color}{color:#d4d4d4}.{color}{color:#dcdcaa}getAttribute{color}{color:#d4d4d4}({color}{color:#ce9178}"dataId"{color}{color:#d4d4d4})"
> {color}is within a @PostConstruct method, it works in MyFaces 2.2. (See
> app)
> {color:#808080}
> {color}
> {color:#0e101a}In some old posts [1], BalusC mentioned that FaceletContext is
> only available at build time (restore view phase). (And he also said
> FaceletContext is not supported in MyFaces but then again it's a post from
> 2012). Is this still true for 2.2/2.3 and newer? Should
> getAttributes().get(FaceletContext.FACELET_CONTEXT_KEY) also return null as
> it did in 2.0.x? It doesn't seem to be nulled out in 2.2. {color}
> {color:#0e101a}I think BalusC is correct because when I use c:set (also build
> time), the faceletContext attribute map did contain the "dataId" value during
> the @PostConstruct method of the bean. {color}
> {color:#0e101a}What's the correct behavior here? The implementation is quite
> confusing as the FaceletContext.FACELET_CONTEXT_KEY value within the
> attribute map is set and restored numerous times.{color}
> {color:#0e101a}Any guidance is appreciated. {color}
>
> {color:#0e101a}Old discussion here: {color}
> 1)
> [{color:#4a6ee0}[https://stackoverflow.com/questions/13930629/uiinclude-using-faceletscontext]{color}]{color:#0e101a}
> {color}
> [{color:#4a6ee0}[https://stackoverflow.com/questions/14745259/how-to-create-uiinclude-tag-programmatically]{color}]{color:#0e101a}
> {color}
>
>
> {color:#0e101a} Issues which touch on FaceletContext: {color}
> {color:#0e101a}- {color}{color:#4a6ee0}
> https://issues.apache.org/jira/browse/MYFACES-3246{color}
> {color:#0e101a}-
> {color}{color:#4a6ee0}https://issues.apache.org/jira/browse/MYFACES-3848{color}{color:#0e101a}
> {color}
>
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