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Descriptors

Descriptors are an alternative to using Mulgara APIs. Some examples of useful tasks that Descriptors can be used for include:

  • Hiding complex Mulgara queries behind a simple interface.
  • Aggregating complex data by Descriptors calling other Descriptors.
  • Developing HTML front ends to Mulgara queries.

The following sections describe Descriptors in detail, and provide examples on how to use them.

In This Section

What are Descriptors?

Advantages and Disadvantages of Descriptors

Namespaces and Descriptors

The <query> Tag

The <descriptor> Tag

Reserved Parameters

Descriptors FAQ

Common Mistakes

Descriptor Examples

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© 2001-2004 Tucana Technologies, Inc. Some rights reserved.

© 2006 The Mulgara Project. Some rights reserved.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".