Argument why the new JavaSript MVVC architecture allows #SmartDB approach to revive.

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Opportunity for SmartDB
Toon Koppelaars
Real-World Performance
Oracle Server Technologies
Winter 2018

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SmartDB Definition
• SmartDB is about how you use, or fail to use, the database
• Do you use the database:
– Just as a persistence layer?
– Or, as a full-fledged processing engine?
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Transactional Business Applications
• Conceptually three tiers
– Functionality exposed via interfaces
• GUI's for human interaction
• REST, Soap or otherwise, for software interaction
– Business logic
– Data store, relational database
User
Interfaces
Software
Interfaces
Business
Logic
Table
Data Store
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We See Two Mutually Distinct Approaches
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DBMS = Persistence Layer
"NoPlsql" Approach
DBMS = Processing Engine
"SmartDB" Approach

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Software Architectures Past 25 Years
• 90’s: Client / Server
– With a lot of #SmartDB approaches near the end
• 00’s: JEE/MVC, with database = persistence layer
– Non-trivial to do #SmartDB in this era…
• Last few years: JavaScript/MVVM
– This architecture creates opportunity for #SmartDB to revive again
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New Paradigm Shift Happening: Java  JavaScript
• Server-side Java MVC-frameworks approach has been ubiquitous
• New architecture is arising:
– Browser-side JavaScript (V+C)
– Server-side JavaScript (M)
– REST to glue it together
– Database still as persistence layer
• Browser = new (fat) Client
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Direct access to all tables
JDBC
Persistence-fw
Model-fw
Business-fw
Control-fw
UI/view-fw
JVM

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New Paradigm Shift Happening: Java  JavaScript
• Server-side Java MVC-frameworks approach has been ubiquitous
• New architecture is arising:
– Browser-side JavaScript (V+C)
– Server-side JavaScript (M)
– REST to glue it together
– Database still as persistence layer
• Browser = new (fat) Client
7
Direct access to all tables
JDBC
Persistence-fw
Model-fw
Business-fw
Control-fw
UI/view-fw
REST
JVM

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New Emerging World Creates Opportunity for SmartDB
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V+C physically
de-coupled now
from M
 Facilitates two
separate roles
JavaScript
UI/frontend
Java
backend
Database
developer
New
#SmartDB
backend
developer

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• Currently REST and JSON are in-swung
• Web server acts as proxy
• And using tools such as ORDS or node.js
 just translate REST request to DB-API call
• DB-API’s do: json-in, json-out
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DB-API’s
Web server
REST
ORDS
#SmartDB High Level Architecture

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