Software Architecture
JSP is the PHP of Java
Embrace separation of concerns
Separation of concerns
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Java/Groovy on the server
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JavaScript, HTML, CSS in the browser
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Limit scope of changes
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Maintain optimal testability
Browser/Client
Architecture
View
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Markup/HTML, CSS, minimal JS
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Presentation/display
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No business logic
Browser
Model
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JavaScript
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DAOs to communicate w/ server
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Maintain data used to feed view
Browser
Controller
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JavaScript
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Respond to user input & update model
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Feed model data to view
Browser
Libraries & Frameworks
Smaller is better
Browser
AngularJS
...is a dead end
Browser
Ember.js
Browser
Polymer
Small and focused
Browser
Simple, fast*, elegant, & powerful
Browser
Server
Architecture
API
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Handle requests from client
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Stateless
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Thin
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REST*
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Representation POJOs
Server
DAO
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Communicate w/ DB
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Stateless
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SQL, HQL, etc
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Includes POJO reps of DB/model
Server
Doman Logic
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Between DAO and API
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Injectable services
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Limited state
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Application-specific behaviors
Server
Model (DB)
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Relational
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NoSQL / Key-Value store
Server
Making life easier
Choosing languages, libraries, and frameworks
Server
Java 8
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Lambda calculus
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functions
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Default methods
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Method references
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Streams
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Improved Date/time
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No more PermGen
Server
Groovy
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Extends Collections
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Intuitive closure support
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Eliminates boilerplate
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Default param values
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Includes the kitchen sink
Server
A window to a new world
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Simpler and more readable code
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"..." unit tests
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"..." E2E tests
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"..." build scripts
Groovy
Spring Boot
Server
Comprehensive
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IOC/DI
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REST
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Apache
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JPA
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Build integration
Spring Boot
And best of all...
NO MORE XML!!!
Spring Boot
Software Architecture
By Ray Nicholus
Software Architecture
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