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CDF-Related COM Classes

The objects defined by these classes can be used to organize and store content information that can be presented as a CDF stream to subscribers. The objects closely follow the CDF specified hierarchy of elements in a roughly one-to-on fashion.  The classes are listed below, along with a brief description of each.

Project Class

This class defines an object that can be used to organize a complete set of content. It contains the top-level Channel object and all the Logo objects for child objects. It is roughly equivalent to a CDF file.

Channel Class

This object is at the heart of the system. It is the primary container object in the CDF hierarchy. It also runs Channel agents to update its content during the refresh cycle. It also manages the data presentable using the CHANNEL CDF eXtensible Markup Language (XML) element.

Item Class

This object is the primary "leaf" object in the content hierarchy. It manages the data presentable using the ITEM CDF XML element.

Schedule Class

This object can be used to manage the data presentable using the SCHEDULE CDF XML element.

LogTarget Class

This object can be used to manage the data presentable using the LOGTARGET CDF XML element.

Logo Class

This object can be used to manage the data presentable using the LOGO CDF XML element. These objects are always stored in a Project object.

Usage Class

This object can be used to manage the data presentable using the USAGE CDF XML element.

HTTPEquiv Class

This class of object can be used to associate generic HTTP-EQUIV XML elements with the various objects.


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