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[Exist-open] Fwd: Using a Java sort comparator in XQuery
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From: Chris T. <chr...@gm...> - 2013-08-26 17:00:55
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Begin forwarded message:
> From: Chris Tomlinson <chr...@gm...>
> Subject: Re: Using a Java sort comparator in XQuery
> Date: August 26, 2013 11:57:05 AM CDT
> To: <mh...@uv...>
>
> No namespace decls and enable-java-binding="no" in my conf.xml.
>
> the only thing is to signal the order-by that the collation is done via java by the "java:" prefix on the class name. Here's an example of the collation at work:
>
>
>
> Here's the jar file. See if you can get the above to work for you:
>
>
>
> Here's the source:
>
>> xquery version "3.0";
>>
>> <list>{
>> let $items :=
>> (<nm>rdo rje snying po</nm>,
>> <nm>dpal ldan</nm>,
>> <nm>mkhan po dpal tseg</nm>,
>> <nm>khrid yig</nm>,
>> <nm>kyis la dreng bu</nm>,
>> <nm>gnas pa'i nyid pa</nm>
>> )
>> for $i in $items
>> order by $i ascending collation "java:org.tbrc.common.server.TibetanCollator"
>> return
>> <x>{$i}</x>
>> }</list>
>
>
> Chris
>
>
>
> On Aug 26, 2013, at 11:26 AM, Martin Holmes <mh...@uv...> wrote:
>
>> I have restarted eXist, and the permissions are clearly right because when eXist calls Saxon using transform:transform, it uses the collator. I don't have to include any special namespaces or anything, do I? In your config file, do you have this:
>>
>> <xquery enable-java-binding="yes">
>>
>> Cheers,
>> MNartin
>>
>> On 13-08-26 08:33 AM, Chris Tomlinson wrote:
>>> I don't have anything else in my environment - no configs in modules
>>> section of conf.xml and so on. I'm also using eXist 2.1 (rev 18724) in
>>> tomcat 7.0.11. The only thing I can think of is a spelling error or may
>>> be a restart of eXist / tomcat but I bet you've already done all that.
>>> Permissions on the jar file?
>>>
>>> Here's my lib dir:
>>>
>>>
>>> and the jar file contents:
>>>
>>>
>>> Chris
>>>
>>>
>>> '
>>> On Aug 26, 2013, at 10:11 AM, Martin Holmes <mh...@uv...
>>> <mailto:mh...@uv...>> wrote:
>>>
>>>> I can't get this to work. I'm using eXist 2.1 under Tomcat, with all
>>>> the jars in WEB-INF/lib, and the jar is there; Saxon finds it and uses
>>>> it when doing XSLT sorts, but when I try to use it in XQuery I get:
>>>>
>>>> err:FOCH0002 The specified collator class
>>>> ca.uvic.hcmc.mol.MolSortComparator could not be found
>>>>
>>>> Is there anything else I need to do?
>>>>
>>>> Cheers,
>>>> Martin
>>>>
>>>> On 13-08-25 06:43 AM, Chris Tomlinson wrote:
>>>>> Hello,
>>>>>
>>>>> We use the following:
>>>>>
>>>>> order by $pname collation
>>>>> "java:org.tbrc.common.server.TibetanCollator"
>>>>>
>>>>> A jar containing the java custom collator is placed in eXist's lib/user.
>>>>>
>>>>> Chris
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Aug 23, 2013, at 1:30 PM, Martin Holmes <mh...@uv...
>>>>> <mailto:mh...@uv...>> wrote:
>>>>>
>>>>>> Hi all,
>>>>>>
>>>>>> I have a Java sort comparator (implements java.util.Comparator) which I
>>>>>> use for sorting in XSLT operations, like this:
>>>>>>
>>>>>> <xsl:sort select="persName/reg" order="ascending"
>>>>>> collation="http://saxon.sf.net/collation?class=ca.uvic.hcmc.mol.MolSortComparator"/>
>>>>>>
>>>>>> I'd like to be able to use the same comparator for sorting in XQuery,
>>>>>> but I can't figure out exactly how to do that. Does anyone have any
>>>>>> suggestions?
>>>>>>
>>>>>> All help appreciated,
>>>>>> Martin
>>>>>>
>>>>>>
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>>>>>
>>>>>
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>>>>
>>>
>>
>> --
>> Martin Holmes
>> University of Victoria Humanities Computing and Media Centre
>> (mh...@uv...)
>
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