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xs:decimal type can be nullable?


asaafj
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Hi!I have a decimal element in my XML structure that is supposed to be optional. However, when trying to leave that element empty I get a SAXParseException:Caused by: org.xml.sax.SAXParseException: cvc-datatype-valid.1.2.1: '' is not avalid value for 'decimal'.I need to put at least '0' (zero) in that element to pass...In the XSD I set a simpleType like this:<xs:simpleType name="dectype"> <xs:restriction base="xs:decimal"/></xs:simpleType>And where this "dectype" is used it is supposed to be optional (minOccurs="0"):<xs:complexType name="authorisationfeedbackitemtype"> <xs:sequence> <xs:element name="NotNullFreeTextField" minOccurs="1" maxOccurs="1" type="stringtype"/> <xs:element name="NullableFreeTextField" minOccurs="0" maxOccurs="1" type="stringtype"/> <xs:element name="NotNullFreeTextField" minOccurs="1" maxOccurs="1" type="stringtype"/> <xs:element name="NotNullFreeTextField" minOccurs="1" maxOccurs="1" type="stringtype"/> <xs:element name="NullableDecimalField" minOccurs="0" maxOccurs="1" type="dectype"/> <xs:element name="NullableFreeTextField" minOccurs="0" maxOccurs="1" type="stringtype"/> <xs:element name="NotNullDateField" minOccurs="1" maxOccurs="1" type="stringtype"/> <xs:element name="NullableFreeTextField" minOccurs="0" maxOccurs="1" type="stringtype"/> </xs:sequence></xs:complexType>Does "xs:decimal" expect a decimal value, I mean can't it be optional? I've tried to look around on the web and haven't found anything saying it's not possible. Or what else can be wrong?Thanks!

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Well, it really depends what you accept.Your current Schema accepts nothing or a single complete element. Scince it doesn't have anything else specified it won't match

<NullableDecimalField/>

nor

<NullableDecimalField></NullableDecimalField>

I think for both of those, you need to add nillable="true". So the line becomes

<xs:element name="NullableDecimalField" nillable="true" minOccurs="0" maxOccurs="1" type="dectype"/>

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Thanks for your answer! But... I tried to add 'nillable=true' in the xsd but it still won't accept no value in the NullableDecimalField. Tried to validate a test XML file with XML Spy, but it still says:"Invalid value for datatype decimal in element 'NullableDecimalField'"when I leave the field empty (like this: <NullableDecimalField></NullableDecimalField>)...

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