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XML

Project objects as XML documents; read, transform, and write XML documents; send and receive XML documents from Ensemble productions; and so on.

Background Information

XML (Extensible Markup Language) is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable.

Available Tools

Caché XML support

Enables you to project objects as XML documents, and read and write those documents. Caché XML support also lets you work with arbitrary XML documents, perform XSLT transformations, evaluate XPath expressions, and so on.

Caché support for XML includes the following elements:

  • The Caché SAX Parser, which validates and parses inbound and outbound XML documents (SAX means “Simple API for XML”). This parser is a built-in parser using the standard Xerces library. Caché SAX communicates with a Caché process using a high-performance, in-process call-in mechanism. You can fine-tune the parser or provide your own custom SAX interface classes.

  • The %XML.Adaptor class, which enables you to represent instances of that class as XML documents.

  • Other specialized classes in the %XML and %xsd packages.

  • Caché support for X.509 certificates (which you can use for encryption and digital signatures)

See Projecting Objects to XML and Using Caché XML Tools.

For information on the supported standards, see “Standards Supported in Caché” in Using Caché XML Tools.

Availability: All namespaces.

Ensemble XML virtual documents

Ensemble provides classes that enable Ensemble productions to receive, work with, and send XML documents as Ensemble virtual documents. See the Ensemble XML Virtual Document Development Guide.

Availability: All Ensemble-enabled namespaces.

See Also