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This is documentation for Caché & Ensemble.

For information on converting to InterSystems IRIS, see the InterSystems IRIS Adoption Guide and the InterSystems IRIS In-Place Conversion Guide, both available on the WRC Distributions page (login required).

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XData Keywords

This reference describes the keywords that apply to an XData block. These keywords (also known as class attributes) generally affect the compiler.

For general information on XData blocks, see “XData Blocks.”

  • Internal – Specifies whether this XData block is internal (not displayed in the class documentation). Note that the class documentation does not currently display XData at all.
  • MimeType – Specifies the MIME type of the XData block.
  • SchemaSpec – Specifies the XML schema against which this XData block can be validated.
  • XMLNamespace – Specifies the XML namespace to which an XData block belongs.