XML catalogs provide mapping information that maps an external entity in an XML document to the actual location of the document being referenced. You can use a catalog to redirect mappings for an external entity, such as a DTD or XML file, to a different location.
For example, if your XML document is constrained by a DTD that is located on the Internet, and you are working without an Internet connection, you can redirect the reference to a local copy of the DTD. You can then validate your XML document without an Internet connection. Alternatively, you can use XML catalogs to switch between different versions of the DTD.
You can create XML catalogs of various types and register them with the IDE by mounting them in the XML Catalogs node of the Runtime window.
For more information on the OASIS XML Catalog specification, see:
http://www.oasis-open.org/committees/entity/spec.html
See Also | |
---|---|
Mounting and Unmounting an XML Catalog XML Catalog Formats Creating and Editing an XML Catalog |