xsd – Page 10 – Tarik Billa

Difference between and in schema definition?

January 19, 2023 by Tarik

<xsd:all> specifies that the child elements can appear in any order. <xsd:sequence> specifies child elements can only appear in the order mentioned. Example for Sequence: <xs:element name=”compElement”> <xs:complexType> <xs:sequence> <xs:element name=”ele1″ type=”xs:string”/> <xs:element name=”ele2″ type=”xs:string”/> <xs:element name=”ele3″ type=”xs:string”/> <xs:element name=”ele4″ type=”xs:string”/> </xs:sequence> </xs:complexType> </xs:element> If you create an XML from this xsd then, it will … Read more

How can I tell jaxb / Maven to generate multiple schema packages?

January 18, 2023 by Tarik

I had to specify different generateDirectory (without this, the plugin was considering that files were up to date and wasn’t generating anything during the second execution). And I recommend to follow the target/generated-sources/<tool> convention for generated sources so that they will be imported in your favorite IDE automatically. I also recommend to declare several execution … Read more

What is the purpose of XSD files?

January 18, 2023 by Tarik

XSD files are used to validate that XML files conform to a certain format. In that respect they are similar to DTDs that existed before them. The main difference between XSD and DTD is that XSD is written in XML and is considered easier to read and understand.

Required tags not present when using Delphi XML Data Binding Wizard

January 9, 2023 by Tarik

Not sure to understand but maybe what you are looking for is : use=”optional” <xs:element name=”MyReport” type=”MyReportType” /> <xs:complexType name=”MyReportType”> <xs:all> <xs:element name=”Header” type=”HeaderType” use=”optional” /> <xs:element name=”Values” type=”ValuesType” use=”optional” /> <xs:element name=”Events” type=”EventsType” use=”optional” /> </xs:all> </xs:complexType> Tell me if it’s okay.

YAML Schema Validation?

January 8, 2023 by Tarik

JSON Schema can be used with most YAML documents resulting in a more portable and better documented solution than Rx or Kwalify. JSON Schema is the only of the three for which I have been able to find editor support. More information on using YAML and JSON Schema including tools and editor support is tracked … Read more

What is an xs:NCName type and when should it be used?

January 4, 2023 by Tarik

@skyl practically provoked me to write this answer so please mind the redundancy. NCName stands for “non-colonized name”. NCName can be defined as an XML Schema regular expression [\i-[:]][\c-[:]]* …and what does that regex mean? \i and \c are multi-character escapes defined in XML Schema definition. http://www.w3.org/TR/xmlschema-2/#dt-ccesN \i is the escape for the set of … Read more

XML Validation with XSD in Visual Studio IDE

January 3, 2023 by Tarik

You’ll need to associate the XML document in Visual Studio with the XSD file you have. You should see something like this in your Properties window of the XML document: In the XML schema set editor (opens when you click on the (…) ellipsis in the “Schemas” textbox in your Properties window) you need to … Read more

Spring schemaLocation fails when there is no internet connection

January 1, 2023 by Tarik

There is no need to use the classpath: protocol in your schemaLocation URL if the namespace is configured correctly and the XSD file is on your classpath. Spring doc “Registering the handler and the schema” shows how it should be done. In your case, the problem was probably that the spring-context jar on your classpath … Read more

What does elementFormDefault do in XSD?

December 31, 2022 by Tarik

ElementFormDefault has nothing to do with namespace of the types in the schema, it’s about the namespaces of the elements in XML documents which comply with the schema. Here’s the relevent section of the spec: Element Declaration Schema Component Property {target namespace} Representation If form is present and its ·actual value· is qualified, or if … Read more

XSD – how to allow elements in any order any number of times?

December 22, 2022 by Tarik

The alternative formulation of the question added in a later edit seems still to be unanswered: how to specify that among the children of an element, there must be one named child3, one named child4, and any number named child1 or child2, with no constraint on the order in which the children appear. This is … Read more