December 2017
Intermediate to advanced
468 pages
13h 12m
English
book
Architectural Patterns
by Anupama Murali, Pethuru Raj, Harihara Subramanian J, Pethuru Raj Chelliah
Content preview from Architectural Patterns
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Entities
As stated in the introduction section, an entity is a mutable object. It can change its attributes without changing its identity. For example, a product is an entity, which is unique and won't change its ID (distinctiveness) once it is set.
However, its price, description, and so on, can be changed as many as times it needs to.
The preceding diagram depicts an entity along with an example. An employee ID is unique and never changes. However, there is a contact detail that can be modified by accessor methods.
Entities have the following properties:
- They are defined by their identity
- The identity remains the same throughout its lifetime ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.