Eclipse JNoSQL: One API to Many NoSQL Databases - BYOL [HOL5998]

Eclipse JNoSQL is a Java framework that streamlines the integration of Java applications with NoSQL databases. It defines a set of APIs and provides a standard implementation for most NoSQL databases. This clearly helps achieve very low coupling with the underlying NoSQL technologies used in applications. The objective of this session is to show how to use the Eclipse JNoSQL framework to connect with a NoSQL database and perform operations to manipulate and extract information.

Requirements

• Git
• Java 8
• Maven 3 or higher Configured
• Docker 17.12.1-ce or higher
• Docker Compose 1.21.2 or higher
• Any IDE that supports maven and Java 8
  • Eclipse
  • NetBeans
  • IntelliJ

Run the code

• git clone https://github.com/JNOSQL/oc1-hands-on-2018.git
• cd oc1-hands-on-2018
• mvn clean install
• Run databases
  • Run Docker instances
  • Run Docker Compose

Run Docker instances

• docker run --name redis-instance -p 6379:6379 -d redis
• docker run -d --name casandra-instance -p 9042:9042 cassandra
• docker run -d --name mongodb-instance -p 27017:27017 mongodb
• docker run -d -p 7474:7474 -p 7687:7687 neo4j
  • Go to http://localhost:7474/browser/ set new password to admin, the default is neo4j

Run as Docker-Compose

Start fresh environment

docker-compose -f docker-compose.yml up -d

Stop and Remove

docker-compose -f docker-compose.yml down

List services

docker-compose -f ft-compose.yml ps

Challenges

Use case #1 - Key/Value

• Create a database to handle JUG information using Redis
• Create, Retrieve and Update JUG information
• Where the JUG name is the unique value.

Use case #2 - Document

• Implement some searches against a MongoDB
• Search JUG members in a given city
• Search JUG members of legal drinking age
• Search JUGs in a region

Use case #3 - Graph (Bonus)

• Implement recommendation searches against Neo4J
• Find Beginner Java Users that know Advanced Java User(s).
• Find Java Users in a given City
• Recommend Advanced Java Users in the same City as a given User.

Model

JUG

• Name
• City
• Programming Languages
• Country

JUG Member

• Name
• City
• Programming Languages (name and skill level)