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I have recently started with XML and had a question regarding XML schemas. As I understand schemas define a sort of contract that all XML files that implement the schema, will follow.

Take, for example, this schema: http://estar8.energystar.gov/ESES/ABS20/Schemas/ManageMetersResponse.xsd

The root contains three children: txnsID, espUserID and customer. I've read up on schemas and I think I am OK, but I am looking after someone's code and the code calls 

root.getAllChildrenByNameOf("customer")

instead of 

root.getChildByNameOf("customer")

which makes me think that there might be multiple customer elements, while I think the schema defines that only one may exist per document. Any clarifications? Thanks for your time.

jn1kk
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  • related: http://stackoverflow.com/questions/4821477/xml-schema-minoccurs-maxoccurs-default-values – jasso Nov 30 '11 at 16:03

2 Answers2

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The schema you linked to allows any number of "customer" elements. The relevant portion is this attribute:

maxOccurs="unbounded"

This means the element can repeat any number of times.

Chris
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The schema has a maxOccurs of unbounded for the customer node. This means it can occur any number of times

karakuricoder
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