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Posted to dev@sling.apache.org by "Bertrand Delacretaz (JIRA)" <ji...@apache.org> on 2013/01/24 11:45:46 UTC
[jira] [Comment Edited] (SLING-2712) Update JavaDocs of ValueMap
wrt primitive types
[ https://issues.apache.org/jira/browse/SLING-2712?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13561553#comment-13561553 ]
Bertrand Delacretaz edited comment on SLING-2712 at 1/24/13 10:45 AM:
----------------------------------------------------------------------
throw new IllegalArgumentException("Conversions to primitive types are not supported, cannot convert to " + whateverTypeWasAskedFor)
is certainly more transparent than a vague NPE that happens later in the caller...
was (Author: bdelacretaz):
throw new IllegalArgumentException("Conversions to primitive types are not supported, cannot convert to " + whateverTypeWasAskedFor)
is certainly more transparent than a vague NPE....
> Update JavaDocs of ValueMap wrt primitive types
> -----------------------------------------------
>
> Key: SLING-2712
> URL: https://issues.apache.org/jira/browse/SLING-2712
> Project: Sling
> Issue Type: Improvement
> Components: JCR
> Affects Versions: JCR Resource 2.2.4
> Reporter: Simone Tripodi
> Fix For: JCR Resource 2.2.4
>
>
> I have a {{Resource}} which has a property named {{releaseMonth}} which is of type {{long}}; then I have a simple {{NumberFormat}}
> {code}
> NumberFormat numberFormat = new DecimalFormat("00");
> {code}
> If I try to execute, in a JSP, the following code, to cast the {{releaseMonth}} property to the primitive {{long.class}}:
> {code}
> <%= numberFormat.format(properties.get("releaseMonth", long.class)) %>
> {code}
> It throws an exception:
> {code}
> Caused by: java.lang.IllegalArgumentException: Cannot format given
> Object as a Number
> at java.text.DecimalFormat.format(DecimalFormat.java:486)
> at java.text.Format.format(Format.java:140)
> at
> org.apache.jsp.apps.gtunes.album.html_jsp._jspService(html_jsp.java:171)
> at
> org.apache.sling.scripting.jsp.jasper.runtime.HttpJspBase.service(HttpJspB
> ase.java:70)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> at
> org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(Js
> pServletWrapper.java:502)
> ... 68 more
> {code}
> If I use instead the primitive wrapper {{Long.class}}
> {code}
> <%= numberFormat.format(properties.get("releaseMonth", Long.class)) %>
> {code}
> everything works fine.
> Looks like that
> {code}
> properties.get("", long.class)
> {code}
> gets {{NULL}} back
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