topic XPath concat multiple nodes in Talend Studio

XPath concat multiple nodes

Anonymous — Sat, 16 Nov 2024 12:32:17 GMT

I have the following xml as source.I need to concate the subEl1 and subEl2.

<item>
<element1>el1</element1>
<element2>el2</element2>
<element3>el3</element3>
<element4>
<subEl1>subel1a</subEl1>
<subEl2>subel2a</subEl2>
</element4>
<element4>
<subEl1>subel1b</subEl1>
<subEl2>subel2b</subEl2>
</element4>
</item>
The output should be "subel1a subel2a"

Re: XPath concat multiple nodes

Anonymous — Thu, 01 Dec 2011 02:50:17 GMT

Hi
Use a tFileInputXml to extract the records from the xml file and concate the two columns into one column on tMap, please see my screenshots.
Best regards
Shong

Re: XPath concat multiple nodes

Anonymous — Thu, 01 Dec 2011 16:08:12 GMT

Thanks Shong.There are some case where the sub element occurence is more than two or in some with one.What will i do in this scenario?
<item>
<element1>el1</element1>
<element2>el2</element2>
<element3>el3</element3>
<element4>
<subEl1>subel1a</subEl1>
<subEl2>subel2a</subEl2>
<subEl3>subel3a</subEl3>
</element4>
<element4>
<subEl1>subel1b</subEl1>
<subEl2>subel2b</subEl2>
</element4>
<element4>
<subEl1>subel1b</subEl1>
</element4>
</item>

Re: XPath concat multiple nodes

Anonymous — Fri, 02 Dec 2011 01:10:43 GMT

Hi
You should extract all the fields from the xml file, that means you always extract the max number of fields, maybe some of fields could be empty in output because the element occurence is more than two or in some with one.
Best regards
Shong