April 2018
Intermediate to advanced
396 pages
11h 8m
English
Content preview from Scala Design Patterns - Second Edition
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The facade design pattern
Whenever we are building libraries or big systems, we quite often depend on other libraries and functionality. Implementing methods sometimes requires the use of multiple classes at the same time. This requires knowledge. Whenever we build a library for someone, we usually try and make it simpler for the users by assuming they do not have (and do not need) as extensive knowledge as we do. Additionally, developers make sure that components are easy to use throughout their application. This is where the facade design pattern can become useful.
The purpose of the facade design pattern is to wrap a complex system with a simpler interface in order to hide the usage complexities and ease the client interaction.
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