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Posted to users@sling.apache.org by Roy Teeuwen <ro...@teeuwen.be> on 2016/08/19 11:25:31 UTC
Sling models adaptTo taglib
Hello all,
I am trying to use the sling models taglib, and I am using the following input:
<%@ page import=“my.packages.TestModel" %>
<sling:adaptTo adaptable="${resource}" adaptTo="<%=TestModel.class.getName()%>" var="model"/>
<div>${model.testString}</div>
But when doing this, I get the following exception:
java.lang.ClassCastException: java.lang.Object cannot be cast to java.lang.String
at javax.servlet.jsp.tagext.TagData.getAttributeString(TagData.java:138)
at org.apache.sling.scripting.jsp.taglib.tei.AdaptToTEI.getClassName(AdaptToTEI.java:26)
at org.apache.sling.scripting.jsp.taglib.tei.AbstractVarTEI.getVariableInfo(AbstractVarTEI.java:78)
I would expect this to work? Is there any way I could get it to work like this? It is nicer if I can import it so that my IDE has a clearer sight of which classes are used in the jsp’s instead of having to write the class as a plain string form:
<sling:adaptTo adaptable="${resource}" adaptTo="my.packages.TestModel" var="model"/>
<div>${model.testString}</div>
(I am used to working with slice from cognifide, and am not trying out sling models, in slice you could say <slice:lookup var=“model” class=“<%=TestModel.class%>”/> without calling the getName but just using the class object )
Thanks!
Roy
Re: Sling models adaptTo taglib
Posted by Roy Teeuwen <ro...@teeuwen.be>.
Hey Jason,
I do agree with it, I just don’t know what Adobe’s support model is when you upgrade jar’s that have been provided by their product instead of asking for a hotfix package or something.
Thats why I tend not to upgrade those bundles myself.
Greetings,
Roy
> On 22 Aug 2016, at 15:06, Jason Bailey <Ja...@sas.com> wrote:
>
> IMHO the big selling point of OSGi, is the ability to add additional packages as you go. If the package is needing an api of a particular version that isn't in your environment it just won't turn on.
>
> If the bundle is defined correctly, which I admit, seems to be a difficult thing to do. Then the version of the bundle is less important then the package version of the api's that it exports.
>
> -Jason
>
> -----Original Message-----
> From: Roy Teeuwen [mailto:roy@teeuwen.be]
> Sent: Saturday, August 20, 2016 8:28 AM
> To: users@sling.apache.org
> Subject: Re: Sling models adaptTo taglib
>
> Hey Dan,
>
> Ok cool, thanks, I guess it is indeed just a patch version upgrade from 2.2.4 to 2.2.6, so it’s worth a shot :)!
>
> Greets
> Roy
>> On 19 Aug 2016, at 15:00, Daniel Klco <dk...@apache.org> wrote:
>>
>> Roy,
>>
>> You can pretty safely upgrade the version of Sling Taglibs without
>> upgrading the overall application version. If you include the newer
>> version of the bundle into your build package in a folder like
>> /apps/[app-name]/install, Sling will pick up the more recent version
>> of the bundle and install it. If you have any issues, you can force
>> Sling to recompile the JSP's from the OSGi console.
>>
>> Regards,
>> Dan
>>
>> On Fri, Aug 19, 2016 at 7:37 AM, Roy Teeuwen <ro...@teeuwen.be> wrote:
>>
>>> Hey Júnior,
>>>
>>> Thanks!
>>>
>>> Darnit, it seems that I will have to wait until after the upgrade to
>>> AEM
>>> 6.2 ;).
>>>
>>> Greets,
>>> Roy
>>>
>>>
>>>> On 19 Aug 2016, at 13:34, Júnior <fj...@gmail.com> wrote:
>>>>
>>>> Hi Roy,
>>>>
>>>> There is an Issue about the problem you are facing:
>>>>
>>>> https://issues.apache.org/jira/browse/SLING-5653
>>>>
>>>> And it seems to be fixed. Not sure in which version it is included.
>>>>
>>>> Thanks
>>>>
>>>>
>>>> 2016-08-19 8:25 GMT-03:00 Roy Teeuwen <ro...@teeuwen.be>:
>>>>
>>>>> Hello all,
>>>>>
>>>>> I am trying to use the sling models taglib, and I am using the
>>>>> following
>>>>> input:
>>>>>
>>>>> <%@ page import=“my.packages.TestModel" %>
>>>>>
>>>>> <sling:adaptTo adaptable="${resource}" adaptTo="<%=TestModel.class.
>>> getName()%>"
>>>>> var="model"/>
>>>>> <div>${model.testString}</div>
>>>>>
>>>>>
>>>>> But when doing this, I get the following exception:
>>>>>
>>>>> java.lang.ClassCastException: java.lang.Object cannot be cast to
>>>>> java.lang.String
>>>>> at javax.servlet.jsp.tagext.TagData.getAttributeString(
>>>>> TagData.java:138)
>>>>> at org.apache.sling.scripting.jsp.taglib.tei.AdaptToTEI.
>>>>> getClassName(AdaptToTEI.java:26)
>>>>> at org.apache.sling.scripting.jsp.taglib.tei.AbstractVarTEI.
>>>>> getVariableInfo(AbstractVarTEI.java:78)
>>>>> I would expect this to work? Is there any way I could get it to
>>>>> work
>>> like
>>>>> this? It is nicer if I can import it so that my IDE has a clearer
>>>>> sight
>>> of
>>>>> which classes are used in the jsp’s instead of having to write the
>>> class as
>>>>> a plain string form:
>>>>>
>>>>> <sling:adaptTo adaptable="${resource}" adaptTo="my.packages.TestModel"
>>>>> var="model"/>
>>>>> <div>${model.testString}</div>
>>>>>
>>>>> (I am used to working with slice from cognifide, and am not trying
>>>>> out sling models, in slice you could say <slice:lookup var=“model”
>>>>> class=“<%=TestModel.class%>”/> without calling the getName but just
>>> using
>>>>> the class object )
>>>>>
>>>>> Thanks!
>>>>> Roy
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Francisco Ribeiro
>>>> *SCEA|SCJP|SCWCD|IBM Certified SOA Associate*
>>>
>>>
>
RE: Sling models adaptTo taglib
Posted by Jason Bailey <Ja...@sas.com>.
IMHO the big selling point of OSGi, is the ability to add additional packages as you go. If the package is needing an api of a particular version that isn't in your environment it just won't turn on.
If the bundle is defined correctly, which I admit, seems to be a difficult thing to do. Then the version of the bundle is less important then the package version of the api's that it exports.
-Jason
-----Original Message-----
From: Roy Teeuwen [mailto:roy@teeuwen.be]
Sent: Saturday, August 20, 2016 8:28 AM
To: users@sling.apache.org
Subject: Re: Sling models adaptTo taglib
Hey Dan,
Ok cool, thanks, I guess it is indeed just a patch version upgrade from 2.2.4 to 2.2.6, so it’s worth a shot :)!
Greets
Roy
> On 19 Aug 2016, at 15:00, Daniel Klco <dk...@apache.org> wrote:
>
> Roy,
>
> You can pretty safely upgrade the version of Sling Taglibs without
> upgrading the overall application version. If you include the newer
> version of the bundle into your build package in a folder like
> /apps/[app-name]/install, Sling will pick up the more recent version
> of the bundle and install it. If you have any issues, you can force
> Sling to recompile the JSP's from the OSGi console.
>
> Regards,
> Dan
>
> On Fri, Aug 19, 2016 at 7:37 AM, Roy Teeuwen <ro...@teeuwen.be> wrote:
>
>> Hey Júnior,
>>
>> Thanks!
>>
>> Darnit, it seems that I will have to wait until after the upgrade to
>> AEM
>> 6.2 ;).
>>
>> Greets,
>> Roy
>>
>>
>>> On 19 Aug 2016, at 13:34, Júnior <fj...@gmail.com> wrote:
>>>
>>> Hi Roy,
>>>
>>> There is an Issue about the problem you are facing:
>>>
>>> https://issues.apache.org/jira/browse/SLING-5653
>>>
>>> And it seems to be fixed. Not sure in which version it is included.
>>>
>>> Thanks
>>>
>>>
>>> 2016-08-19 8:25 GMT-03:00 Roy Teeuwen <ro...@teeuwen.be>:
>>>
>>>> Hello all,
>>>>
>>>> I am trying to use the sling models taglib, and I am using the
>>>> following
>>>> input:
>>>>
>>>> <%@ page import=“my.packages.TestModel" %>
>>>>
>>>> <sling:adaptTo adaptable="${resource}" adaptTo="<%=TestModel.class.
>> getName()%>"
>>>> var="model"/>
>>>> <div>${model.testString}</div>
>>>>
>>>>
>>>> But when doing this, I get the following exception:
>>>>
>>>> java.lang.ClassCastException: java.lang.Object cannot be cast to
>>>> java.lang.String
>>>> at javax.servlet.jsp.tagext.TagData.getAttributeString(
>>>> TagData.java:138)
>>>> at org.apache.sling.scripting.jsp.taglib.tei.AdaptToTEI.
>>>> getClassName(AdaptToTEI.java:26)
>>>> at org.apache.sling.scripting.jsp.taglib.tei.AbstractVarTEI.
>>>> getVariableInfo(AbstractVarTEI.java:78)
>>>> I would expect this to work? Is there any way I could get it to
>>>> work
>> like
>>>> this? It is nicer if I can import it so that my IDE has a clearer
>>>> sight
>> of
>>>> which classes are used in the jsp’s instead of having to write the
>> class as
>>>> a plain string form:
>>>>
>>>> <sling:adaptTo adaptable="${resource}" adaptTo="my.packages.TestModel"
>>>> var="model"/>
>>>> <div>${model.testString}</div>
>>>>
>>>> (I am used to working with slice from cognifide, and am not trying
>>>> out sling models, in slice you could say <slice:lookup var=“model”
>>>> class=“<%=TestModel.class%>”/> without calling the getName but just
>> using
>>>> the class object )
>>>>
>>>> Thanks!
>>>> Roy
>>>
>>>
>>>
>>>
>>> --
>>> Francisco Ribeiro
>>> *SCEA|SCJP|SCWCD|IBM Certified SOA Associate*
>>
>>
Re: Sling models adaptTo taglib
Posted by Roy Teeuwen <ro...@teeuwen.be>.
Hey Dan,
Ok cool, thanks, I guess it is indeed just a patch version upgrade from 2.2.4 to 2.2.6, so it’s worth a shot :)!
Greets
Roy
> On 19 Aug 2016, at 15:00, Daniel Klco <dk...@apache.org> wrote:
>
> Roy,
>
> You can pretty safely upgrade the version of Sling Taglibs without
> upgrading the overall application version. If you include the newer version
> of the bundle into your build package in a folder like
> /apps/[app-name]/install, Sling will pick up the more recent version of the
> bundle and install it. If you have any issues, you can force Sling to
> recompile the JSP's from the OSGi console.
>
> Regards,
> Dan
>
> On Fri, Aug 19, 2016 at 7:37 AM, Roy Teeuwen <ro...@teeuwen.be> wrote:
>
>> Hey Júnior,
>>
>> Thanks!
>>
>> Darnit, it seems that I will have to wait until after the upgrade to AEM
>> 6.2 ;).
>>
>> Greets,
>> Roy
>>
>>
>>> On 19 Aug 2016, at 13:34, Júnior <fj...@gmail.com> wrote:
>>>
>>> Hi Roy,
>>>
>>> There is an Issue about the problem you are facing:
>>>
>>> https://issues.apache.org/jira/browse/SLING-5653
>>>
>>> And it seems to be fixed. Not sure in which version it is included.
>>>
>>> Thanks
>>>
>>>
>>> 2016-08-19 8:25 GMT-03:00 Roy Teeuwen <ro...@teeuwen.be>:
>>>
>>>> Hello all,
>>>>
>>>> I am trying to use the sling models taglib, and I am using the following
>>>> input:
>>>>
>>>> <%@ page import=“my.packages.TestModel" %>
>>>>
>>>> <sling:adaptTo adaptable="${resource}" adaptTo="<%=TestModel.class.
>> getName()%>"
>>>> var="model"/>
>>>> <div>${model.testString}</div>
>>>>
>>>>
>>>> But when doing this, I get the following exception:
>>>>
>>>> java.lang.ClassCastException: java.lang.Object cannot be cast to
>>>> java.lang.String
>>>> at javax.servlet.jsp.tagext.TagData.getAttributeString(
>>>> TagData.java:138)
>>>> at org.apache.sling.scripting.jsp.taglib.tei.AdaptToTEI.
>>>> getClassName(AdaptToTEI.java:26)
>>>> at org.apache.sling.scripting.jsp.taglib.tei.AbstractVarTEI.
>>>> getVariableInfo(AbstractVarTEI.java:78)
>>>> I would expect this to work? Is there any way I could get it to work
>> like
>>>> this? It is nicer if I can import it so that my IDE has a clearer sight
>> of
>>>> which classes are used in the jsp’s instead of having to write the
>> class as
>>>> a plain string form:
>>>>
>>>> <sling:adaptTo adaptable="${resource}" adaptTo="my.packages.TestModel"
>>>> var="model"/>
>>>> <div>${model.testString}</div>
>>>>
>>>> (I am used to working with slice from cognifide, and am not trying out
>>>> sling models, in slice you could say <slice:lookup var=“model”
>>>> class=“<%=TestModel.class%>”/> without calling the getName but just
>> using
>>>> the class object )
>>>>
>>>> Thanks!
>>>> Roy
>>>
>>>
>>>
>>>
>>> --
>>> Francisco Ribeiro
>>> *SCEA|SCJP|SCWCD|IBM Certified SOA Associate*
>>
>>
Re: Sling models adaptTo taglib
Posted by Daniel Klco <dk...@apache.org>.
Roy,
You can pretty safely upgrade the version of Sling Taglibs without
upgrading the overall application version. If you include the newer version
of the bundle into your build package in a folder like
/apps/[app-name]/install, Sling will pick up the more recent version of the
bundle and install it. If you have any issues, you can force Sling to
recompile the JSP's from the OSGi console.
Regards,
Dan
On Fri, Aug 19, 2016 at 7:37 AM, Roy Teeuwen <ro...@teeuwen.be> wrote:
> Hey Júnior,
>
> Thanks!
>
> Darnit, it seems that I will have to wait until after the upgrade to AEM
> 6.2 ;).
>
> Greets,
> Roy
>
>
> > On 19 Aug 2016, at 13:34, Júnior <fj...@gmail.com> wrote:
> >
> > Hi Roy,
> >
> > There is an Issue about the problem you are facing:
> >
> > https://issues.apache.org/jira/browse/SLING-5653
> >
> > And it seems to be fixed. Not sure in which version it is included.
> >
> > Thanks
> >
> >
> > 2016-08-19 8:25 GMT-03:00 Roy Teeuwen <ro...@teeuwen.be>:
> >
> >> Hello all,
> >>
> >> I am trying to use the sling models taglib, and I am using the following
> >> input:
> >>
> >> <%@ page import=“my.packages.TestModel" %>
> >>
> >> <sling:adaptTo adaptable="${resource}" adaptTo="<%=TestModel.class.
> getName()%>"
> >> var="model"/>
> >> <div>${model.testString}</div>
> >>
> >>
> >> But when doing this, I get the following exception:
> >>
> >> java.lang.ClassCastException: java.lang.Object cannot be cast to
> >> java.lang.String
> >> at javax.servlet.jsp.tagext.TagData.getAttributeString(
> >> TagData.java:138)
> >> at org.apache.sling.scripting.jsp.taglib.tei.AdaptToTEI.
> >> getClassName(AdaptToTEI.java:26)
> >> at org.apache.sling.scripting.jsp.taglib.tei.AbstractVarTEI.
> >> getVariableInfo(AbstractVarTEI.java:78)
> >> I would expect this to work? Is there any way I could get it to work
> like
> >> this? It is nicer if I can import it so that my IDE has a clearer sight
> of
> >> which classes are used in the jsp’s instead of having to write the
> class as
> >> a plain string form:
> >>
> >> <sling:adaptTo adaptable="${resource}" adaptTo="my.packages.TestModel"
> >> var="model"/>
> >> <div>${model.testString}</div>
> >>
> >> (I am used to working with slice from cognifide, and am not trying out
> >> sling models, in slice you could say <slice:lookup var=“model”
> >> class=“<%=TestModel.class%>”/> without calling the getName but just
> using
> >> the class object )
> >>
> >> Thanks!
> >> Roy
> >
> >
> >
> >
> > --
> > Francisco Ribeiro
> > *SCEA|SCJP|SCWCD|IBM Certified SOA Associate*
>
>
Re: Sling models adaptTo taglib
Posted by Roy Teeuwen <ro...@teeuwen.be>.
Hey Júnior,
Thanks!
Darnit, it seems that I will have to wait until after the upgrade to AEM 6.2 ;).
Greets,
Roy
> On 19 Aug 2016, at 13:34, Júnior <fj...@gmail.com> wrote:
>
> Hi Roy,
>
> There is an Issue about the problem you are facing:
>
> https://issues.apache.org/jira/browse/SLING-5653
>
> And it seems to be fixed. Not sure in which version it is included.
>
> Thanks
>
>
> 2016-08-19 8:25 GMT-03:00 Roy Teeuwen <ro...@teeuwen.be>:
>
>> Hello all,
>>
>> I am trying to use the sling models taglib, and I am using the following
>> input:
>>
>> <%@ page import=“my.packages.TestModel" %>
>>
>> <sling:adaptTo adaptable="${resource}" adaptTo="<%=TestModel.class.getName()%>"
>> var="model"/>
>> <div>${model.testString}</div>
>>
>>
>> But when doing this, I get the following exception:
>>
>> java.lang.ClassCastException: java.lang.Object cannot be cast to
>> java.lang.String
>> at javax.servlet.jsp.tagext.TagData.getAttributeString(
>> TagData.java:138)
>> at org.apache.sling.scripting.jsp.taglib.tei.AdaptToTEI.
>> getClassName(AdaptToTEI.java:26)
>> at org.apache.sling.scripting.jsp.taglib.tei.AbstractVarTEI.
>> getVariableInfo(AbstractVarTEI.java:78)
>> I would expect this to work? Is there any way I could get it to work like
>> this? It is nicer if I can import it so that my IDE has a clearer sight of
>> which classes are used in the jsp’s instead of having to write the class as
>> a plain string form:
>>
>> <sling:adaptTo adaptable="${resource}" adaptTo="my.packages.TestModel"
>> var="model"/>
>> <div>${model.testString}</div>
>>
>> (I am used to working with slice from cognifide, and am not trying out
>> sling models, in slice you could say <slice:lookup var=“model”
>> class=“<%=TestModel.class%>”/> without calling the getName but just using
>> the class object )
>>
>> Thanks!
>> Roy
>
>
>
>
> --
> Francisco Ribeiro
> *SCEA|SCJP|SCWCD|IBM Certified SOA Associate*
Re: Sling models adaptTo taglib
Posted by Júnior <fj...@gmail.com>.
Hi Roy,
There is an Issue about the problem you are facing:
https://issues.apache.org/jira/browse/SLING-5653
And it seems to be fixed. Not sure in which version it is included.
Thanks
2016-08-19 8:25 GMT-03:00 Roy Teeuwen <ro...@teeuwen.be>:
> Hello all,
>
> I am trying to use the sling models taglib, and I am using the following
> input:
>
> <%@ page import=“my.packages.TestModel" %>
>
> <sling:adaptTo adaptable="${resource}" adaptTo="<%=TestModel.class.getName()%>"
> var="model"/>
> <div>${model.testString}</div>
>
>
> But when doing this, I get the following exception:
>
> java.lang.ClassCastException: java.lang.Object cannot be cast to
> java.lang.String
> at javax.servlet.jsp.tagext.TagData.getAttributeString(
> TagData.java:138)
> at org.apache.sling.scripting.jsp.taglib.tei.AdaptToTEI.
> getClassName(AdaptToTEI.java:26)
> at org.apache.sling.scripting.jsp.taglib.tei.AbstractVarTEI.
> getVariableInfo(AbstractVarTEI.java:78)
> I would expect this to work? Is there any way I could get it to work like
> this? It is nicer if I can import it so that my IDE has a clearer sight of
> which classes are used in the jsp’s instead of having to write the class as
> a plain string form:
>
> <sling:adaptTo adaptable="${resource}" adaptTo="my.packages.TestModel"
> var="model"/>
> <div>${model.testString}</div>
>
> (I am used to working with slice from cognifide, and am not trying out
> sling models, in slice you could say <slice:lookup var=“model”
> class=“<%=TestModel.class%>”/> without calling the getName but just using
> the class object )
>
> Thanks!
> Roy
--
Francisco Ribeiro
*SCEA|SCJP|SCWCD|IBM Certified SOA Associate*