Writing an xsd file

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Community Bot 1 1 1 silver badge. Raj Raj 2 2 gold badges 8 8 silver badges 14 14 bronze badges. You have an XML file. This does not look like ans XSD file Think he meant he has an XML from which he wants to build an xsd. OP please clarify your question — Constantin. With this in mind, you can try using a tool like trang to create a template of the XSD from an existing XML snippet and then modify your XSD by hand, adding any extra validation rules to it.

No tool will be able to know exactly what those rules should be, such as datatypes, max lengths, required vs optional and so on — Constantin.

Show 2 more comments. Active Oldest Votes. BufferedReader; import java. File; import java. FileOutputStream; import java. FileReader; import java.

The code example also provides a ValidationEventHandler as a parameter to the static Read method to handle any schema validation warnings or errors encountered while reading the XML schema. If the ValidationEventHandler is not specified null , no warnings or errors are reported. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info.

Contents Exit focus mode. This is specified by setting the maxOccurs attribute of the "item" element to "unbounded" which means that there can be as many occurrences of the "item" element as the author wishes. Notice that the "note" element is optional. We have specified this by setting the minOccurs attribute to zero:. We can now declare the attribute of the "shiporder" element.

The previous design method is very simple, but can be difficult to read and maintain when documents are complex. The next design method is based on defining all elements and attributes first, and then referring to them using the ref attribute. The third design method defines classes or types, that enables us to reuse element definitions.

This is done by naming the simpleTypes and complexTypes elements, and then point to them through the type attribute of the element. So, the following fragment means that the value of the element or attribute must be a string value:. The restriction element is more often used to apply restrictions to elements. Look at the following lines from the schema above:. This indicates that the value of the element or attribute must be a string, it must be exactly six characters in a row, and those characters must be a number from 0 to 9.

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