Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Which six paper factory directions inspired the design?
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Step 1
Definition:
Each processor in the chain will have its own implementation for processing a command.
Every processor in the example before has a unique implementation of the isAuthorized function.
A reference to the processor that comes after each processor in the chain is required.
UsernamePasswordProcessor above is authorised to act on behalf of OAuthProcessor.
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