XML Schma - Addiing optional fields

[sgotur]

I have the following XML

<request>
<system>ABC</system>
<id>XYZ123</id>
<dynamic>
<serial>
<id>X123456</id>
<id>A123456</id>
</serial>
<pool>
<id>y123456</id>
<id>d123456</id>
</pool>
</dynamic>

</request>


Now I need to conver the xml to XSD with the following business rule

<dynamic> element is optional field

if the <dynamic> field is defined it should have either one of these fields or both <serial> & <pool>

if <serial> or <pool> is defined it should have atleast one element <id>

I'm not sure how to convert the above xml to XSD and I tried couple of conversion tool and they do not have the options...
any help is appreciated.

[sorin_ristache]

Hello,

You can use the Convert to action from the toolbar to convert your XML instance to XML Schema and then edit the result and add the restrictions that you want:

- The reference to dynamic has the attribute minOccurs="0"

- The definition of dynamic contains a choice element that means serial or pool or serial and pool

- The definitions of serial and pool contain a reference to attribute id with the attribute maxOccurs="unbounded"

Code: Select all

<?xml version="1.0" encoding="UTF-8"?>

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">

  <xs:element name="request">

    <xs:complexType>

      <xs:sequence>

        <xs:element ref="system"/>

        <xs:element ref="id"/>

        <xs:element ref="dynamic" minOccurs="0"/>

      </xs:sequence>

    </xs:complexType>

  </xs:element>

  <xs:element name="system" type="xs:NCName"/>

  <xs:element name="dynamic">

    <xs:complexType>

      <xs:sequence>

          <xs:choice>

              <xs:sequence>

                  <xs:element ref="serial"/>

                  <xs:element ref="pool" minOccurs="0"/>

              </xs:sequence>

              <xs:element ref="pool"/>

          </xs:choice>

      </xs:sequence>

    </xs:complexType>

  </xs:element>

  <xs:element name="serial">

    <xs:complexType>

      <xs:sequence>

        <xs:element maxOccurs="unbounded" ref="id"/>

      </xs:sequence>

    </xs:complexType>

  </xs:element>

  <xs:element name="pool">

    <xs:complexType>

      <xs:sequence>

        <xs:element maxOccurs="unbounded" ref="id"/>

      </xs:sequence>

    </xs:complexType>

  </xs:element>

  <xs:element name="id" type="xs:NCName"/>

</xs:schema>

Best regards,
Sorin