MapForce supports the mapping to/from derived types of a complex type. Derived types are complex types of an XML Schema that use the xsi:type attribute to identify the specific derived types.
The screenshot below shows the definition of a derived type called US-Address, in XMLSpy. The base type (or originating complex type) is AddressType. Two extra elements were added to create the derived type US-Address: Zip and State.
Sample derived type (XMLSpy schema view)
The following example shows you how to map data to or from derived XML schema types.
|1.||On the Insert menu, click XML Schema/File, and open the following XML Schema: <Documents>\Altova\MapForce2019\MapForceExamples\Tutorial\MFCompany.xsd.|
|2.||When prompted to supply an instance file, click Skip, and then select Company as the root element.|
|3.||Click the button next to the Address element. This button indicates that derived types exist for this element in the schema.|
|4.||Select the check box next to the derived type you want to use (US-Address, in this case), and confirm with OK. A new element Address xsi:type="US-Address" has been added to the component.|
You can now map data to or from the US-Address derived type.
Note that you can also include multiple derived types by selecting them in the Derived Types dialog box. In this case, each would have its own xsi:type element in the component.
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