paxtonedgar / java-mod-10-redesigning-data-structures-for-cassandra

Redesigning Data Structures for Cassandra

Learning Goals

• Hands on experience modifying queries and data structures for Cassandra

Instructions

We will be working hands on with a simple Blackjack deck implemented in a RDBMS schema on top of Postgres, and converting it to be backed by Cassandra.

The data structures are as follows:

Deck

id	position	uuid
1	1	aaa
2	2	bbb
3	3	ccc
...	...	...
n	n	nnn

Card

id	deck_number	name	suit	uuid
1	1	one	clubs	aaa
2	1	two	clubs	bbb
3	1	three	clubs	ccc
...	...	...	...	...
n	n/52	ace	diamonds	nnn

Value

id	name	points
1	one	1
2	two	2
3	three	3
...	...	...
n	ace	11

There are simple REST endpoints implemented for deck operations to shuffle, deal, and start with a new deck using a parameter decks for the amount of decks to be used.

Once complete, you can submit a working fork.