CODEWITHSUNDEEP
xmlxsd
Appps
Appps

Reputation: 21

XSD force to use a particular order for the element with attribute

I've an XML file like the one below

 <transaction name="TEST_EX" type="singletonComplex">
  <vo class="svc.vo.UserProfile">
   <field deepMapping="true">
    <vo class="svc.vo.UserVO">
     <field name="UserName" column="User_Name" type="String"/>
     <field name="Age" column="User_Age" type="Integer"/>
    </vo>
   </field>
   <field name="Address1" column="Address_1" type="String"/>
   <field name="Address2" column="Address_2" type="String"/>
  </vo>
 </transaction>

Inside there are couple of fields. Some of the fields has deepMapping enabled to true. I want to make sure that, if deepMapping is enabled, then it should be listed first, ie. ahead of Address1 and Address2. I've created an XSD file, but I'm not sure how I can implement this in that XSD file.

Upvotes: 1

Views: 916

Answers (3)

pitpod
pitpod

Reputation: 399

Are you able to change the XML structure? If yes, I would suggest adding a new XML element to group all fields with enabled deepMapping, e.g.:

 <transaction name="TEST_EX" type="singletonComplex">
  <vo class="svc.vo.UserProfile">
   <deepMapping>
    <vo class="svc.vo.UserVO">
     <field name="UserName" column="User_Name" type="String"/>
     <field name="Age" column="User_Age" type="Integer"/>
    </vo>
   </deepMapping>
   <field name="Address1" column="Address_1" type="String"/>
   <field name="Address2" column="Address_2" type="String"/>
  </vo>
 </transaction>

Your request to put all fields with deepMapping="true" at the top is more or less a grouping of fields.

Upvotes: 1

Tim Jansen
Tim Jansen

Reputation: 3358

As xcut said, you can't do this with XML Schema. What you could do is use two different element names with the same complex type: 

 <xs:complexType name="fieldType">
    <xs:sequence>
      <xs:element name="field" maxOccurs="unbounded">
        <!--  .... -->
      </xs:element>
    </xs:sequence>
  </xs:complexType>

  <xs:element name="vo">
    <xs:complexType>
      <xs:sequence>
        <xs:element name="deepMappedField" type="fieldType" minOccurs="0"/>
        <xs:element name="field" type="fieldType" maxOccurs="unbounded"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>

Upvotes: 0

xcut
xcut

Reputation: 6349

You cannot make the contents of an element (or attribute) dependent on the contents of another. XML Schema does not support this. You will have to use some other validation mechanism on top of it.

Upvotes: 2

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