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Adding URL Support

The URLs lesson describes how the API user can pass a URL string to the initial context and have that URL be processed by a URL context implementation. This lesson shows you how to build a URL context implementation and make it available to the API user. This involves three steps:

• Build an object factory that dispatches the request to the URL context implementation.
• Build a context implementation to process the URL.
• Set up the environment to make the object factory available to the user program.

The JNDI uses the implementation as follows:

• To process URL strings passed as the name argument to methods in the InitialContext class and its subclasses
• To process URL strings in a Reference passed to NamingManager.getObjectInstance() and DirectoryManager.getObjectInstance().

This lesson describes these two ways in detail.

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Prerequsite: Before embarking on this lesson, you should already know how to build a context implementation, the details of which are described in the The Essential Components lesson. If you are adding URL support to a directory context implementation, then you should also read the Adding Directory Support lesson.

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