XSD Tutorials - Herong's Tutorial Examples - v5.23, by Herong Yang
"nonNegativeInteger", "positiveInteger", "nonPositiveInteger", "negativeInteger" Datatypes
This section describes the built-in primitive datatypes, 'nonNegativeInteger', 'positiveInteger', 'nonPositiveInteger' and 'negativeInteger', that represents integer numbers according signs and the zero value. Leading and trailing whitespaces are allowed and trimmed.
Also based on the "long" datatype, 4 other built-in datatypes are derived in XSD 1.1 to represent integer numbers within different ranges according to signs and the zero value: "nonNegativeInteger", "positiveInteger", "nonPositiveInteger" and "negativeInteger". Their definitions can be summarized as:
To verify these rules, I wrote this simple XSD document that uses "nonNegativeInteger", "positiveInteger", "nonPositiveInteger" and "negativeInteger" datatypes to declare XML elements:
<?xml version="1.1"?> <!-- positive_negative_integer_datatype_test.xsd - Copyright (c) 2002-2013 HerongYang.com. All Rights Reserved. --> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:element name="Positive_Negative_Integer_Datatype_Test"> <xs:complexType> <xs:sequence> <xs:element name="NonNegativeInteger" type="xs:nonNegativeInteger" maxOccurs="unbounded"/> <xs:element name="PositiveInteger" type="xs:positiveInteger" maxOccurs="unbounded"/> <xs:element name="NonPositiveInteger" type="xs:nonPositiveInteger" maxOccurs="unbounded"/> <xs:element name="NegativeInteger" type="xs:negativeInteger" maxOccurs="unbounded"/> </xs:sequence> </xs:complexType> </xs:element> </xs:schema>
Here is a sample XML document that can be used to test these declarations:
<?xml version="1.1"?> <!-- positive_negative_integer_datatype_test.xml - Copyright (c) 2002-2013 HerongYang.com. All Rights Reserved. --> <Positive_Negative_Integer_Datatype_Test> <!-- 2 valid "NonNegativeInteger" elements --> <NonNegativeInteger>012345678901234567890123456</NonNegativeInteger> <NonNegativeInteger>000000000000000000000000000</NonNegativeInteger> <!-- 1 invalid "NonNegativeInteger" elements --> <NonNegativeInteger>-1</NonNegativeInteger> <!-- 1 valid "PositiveInteger" elements --> <PositiveInteger>012345678901234567890123456</PositiveInteger> <!-- 2 invalid "PositiveInteger" elements --> <PositiveInteger>-1</PositiveInteger> <PositiveInteger> 0</PositiveInteger> <!-- 2 valid "NonPositiveInteger" elements --> <NonPositiveInteger>-012345678901234567890123456</NonPositiveInteger> <NonPositiveInteger> 000000000000000000000000000</NonPositiveInteger> <!-- 1 invalid "NonPositiveInteger" elements --> <NonPositiveInteger>1</NonPositiveInteger> <!-- 1 valid "NegativeInteger" elements --> <NegativeInteger>-012345678901234567890123456</NegativeInteger> <!-- 2 invalid "NegativeInteger" elements --> <NegativeInteger>1</NegativeInteger> <NegativeInteger>0</NegativeInteger> </Positive_Negative_Integer_Datatype_Test>
When validating this XML document with my XsdSchemaValidator.java program presented earlier in the book, I get 6 groups errors for 6 invalid XML elements:
herong> java XsdSchemaValidator ^^^ positive_negative_integer_datatype_test.xsd ^^^ positive_negative_integer_datatype_test.xml Error: Line number: 11 Column number: 46 Message: cvc-minInclusive-valid: Value '-1' is not facet-valid with respect to minInclusive '0' for type 'nonNegativeInteger'. Error: Line number: 11 Column number: 46 Message: cvc-type.3.1.3: The value '-1' of element 'NonNegativeInteger' is not valid. Error: Line number: 17 Column number: 40 Message: cvc-minInclusive-valid: Value '-1' is not facet-valid with respect to minInclusive '1' for type 'positiveInteger'. Error: Line number: 17 Column number: 40 Message: cvc-type.3.1.3: The value '-1' of element 'PositiveInteger' is not valid. Error: Line number: 18 Column number: 40 Message: cvc-minInclusive-valid: Value '0' is not facet-valid with respect to minInclusive '1' for type 'positiveInteger'. Error: Line number: 18 Column number: 40 Message: cvc-type.3.1.3: The value ' 0' of element 'PositiveInteger' is not valid. Error: Line number: 25 Column number: 45 Message: cvc-maxInclusive-valid: Value '1' is not facet-valid with respect to maxInclusive '0' for type 'nonPositiveInteger'. Error: Line number: 25 Column number: 45 Message: cvc-type.3.1.3: The value '1' of element 'NonPositiveInteger' is not valid. Error: Line number: 31 Column number: 39 Message: cvc-maxInclusive-valid: Value '1' is not facet-valid with respect to maxInclusive '-1' for type 'negativeInteger'. Error: Line number: 31 Column number: 39 Message: cvc-type.3.1.3: The value '1' of element 'NegativeInteger' is not valid. Error: Line number: 32 Column number: 39 Message: cvc-maxInclusive-valid: Value '0' is not facet-valid with respect to maxInclusive '-1' for type 'negativeInteger'. Error: Line number: 32 Column number: 39 Message: cvc-type.3.1.3: The value '0' of element 'NegativeInteger' is not valid. Failed with errors: 12
Table of Contents
XML Editor and Schema Processor - XMLPad
Java API for XML Processing - JAXP
JAXP - XML Schema (XSD) Validation
Xerces2 Java Parser - Java API of XML Parsers
Introduction of XSD Built-in Datatypes
"string" and Its Derived Datatypes
►"decimal" and Its Derived Datatypes
"decimal" Datatype Values and Representations
"integer" Datatype Values and Representations
"long", "int", "short" and "byte" Datatypes
►"nonNegativeInteger", "positiveInteger", "nonPositiveInteger", "negativeInteger" Datatypes
""unsignedLong" and "unsignedShort" Datatypes
"dateTime" and Its Related Datatypes
Miscellaneous Built-in Datatypes
Facets, Constraining Facets and Restriction Datatypes
"simpleType" - Defining Your Own Simple Datatypes
Identity-Constraints: unique, key and keyref
Assertion as Custom Validation Rules
XML Schema Location and Namespace in XML Documents
Overriding Element Types in XML Documents