Are minOccurs and maxOccurs defaults ever not 1 in an XSD?

Question

Is the default value for minOccurs and maxOccurs attributes ever not 1 for an xml schema?

I am wondering if it is safe to simply remove all minOccurs="1" and maxOccurs="1" because they are (possibly, depending on the answer) just clogging the schema up with superfluous text.

score 2 · Answer 1 · answered Jul 06 '15 at 18:15

2

minOccurs and maxOccurs have a default value of 1, and thus it is safe to remove them.

You may want to watch out if your schema contains extensions of a complexType though. As they might change the values, which are inherited.

answered Jul 06 '15 at 18:15

cvesters

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Wouldn't extending `complexType` be bad practice? – Captain Man Jul 07 '15 at 14:37
I've never done so myself, but I believe it's just a form a re-useability similar to inheritance in an Object Oriented programming language. – cvesters Jul 08 '15 at 06:12

score 1 · Accepted Answer · answered Jul 06 '15 at 18:16

1

Yes. The default value for both the minOccurs and the maxOccurs attributes is 1. See this section of the specification

answered Jul 06 '15 at 18:16

theBittor

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Are minOccurs and maxOccurs defaults ever not 1 in an XSD?

2 Answers2