What is elementFormDefault in XSD?

What is elementFormDefault in XSD?

Vast majority of the time: Add elementFormDefault=”qualified” to the xsd:schema element of the XSD. This means valid XML must place elements in the target namespace when locally declared in the XSD; otherwise, valid XML must place locally declared elements in no namespace.

What is an XSD file used for?

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.

What is an XSD extension?

A file with the XSD file extension is most likely an XML Schema file; a text-based file format that defines validation rules for an XML file and explains the XML form. Since they’re schema files, they provide a model for something else, XML files in this case.

What is XSD parser?

XsdParser is a library that parses a XML Definition file (. xsd) into a list of java objects. Each different XSD tag has a corresponding Java class and the attributes of a given XSD type are represented as fields of that class. All Java representations of the XSD elements follow the schema definition for XSD.

What is a targetNamespace?

targetNamespace is the expected namespace of the instances regardless of the namespace of the schema documents and any other namespace specified in the instance document.

What program opens XSD files?

An XSD file stores its contents as plain text in XML format, which means the files can be opened and viewed by any text editor and numerous other programs. However, if you want to edit an XSD file, you should use an XML editor, such as Microsoft XML Notepad, Bare Bones BBEdit, or SyncRO Soft oXygen XML Editor.

How XSD is used in Java?

xsd is the XML schema you will use as input to the JAXB binding compiler, and from which schema-derived JAXB Java classes will be generated. For the Customize Inline and Datatype Converter examples, this file contains inline binding customizations.

How do XSD targetnamespace and elementformdefault and attributeformdefault work?

This topic describes how the XSD targetNamespace, elementFormDefault, and attributeFormDefault attributes work, how they affect the XML instance that is generated, and how XPath queries are specified with namespaces. You can use the xsd:targetNamespace attribute to place elements and attributes from the default namespace into a different namespace.

What is the use of elementformdefault=qualified in XML?

elementFormDefault=”qualified” is used to control the usage of namespaces in XML instance documents (.xml file), rather than namespaces in the schema document itself (.xsd file). By specifying elementFormDefault=”qualified” we enforce namespace declaration to be used in documents validated with this schema.

Why are elementelements locally defined in XSD in no namespace?

Elements locally defined in XSD are in no namespace by default. This is because the default value for elementFormDefault is unqualified. This arguably is a design mistake by the creators of XSD.

How do I specify a target namespace in an XSD schema?

The following XSD schema specifies a target namespace by using the xsd:targetNamespace attribute. The schema also sets the elementFormDefault and attributeFormDefault attribute values to “unqualified” (the default value for these attributes).