Introduce to Spring Roo
Study Hsueh
2014/03/16
Java RAD Study Group Meeting #1
Outline
- What is Spring Roo?
- Traditional Layered Web Architecture
- Basic commands
- Persistence Layer Configuration
- Domain Model
- Active Record Pattern
- Repository and Service Pattern
- Service Layer
- Web Service Layer
- Presentation Layer
What is Spring Roo?
http://projects.spring.io/spring-roo/
Dec. 2009: 1.0.0.RELEASE GA
...
Jan. 2014: 1.2.5.RELEASE GA (Current)
...
Jan. 2014: 1.2.5.RELEASE GA (Current)
- Version Compatibility
- Complex Configuration
- Lots of different framework implementations
- JPA: DataNucleus, EclipseLink, Hibernate, OpenJPA...
- MVC: SpringMVC, Struts...
- Dependency Management
- ...
Let take a minute to think how many things
you need to setup up for a ORM framework?
you need to setup up for a ORM framework?
Trad. Layered WEB Architecture
Basic Commands
- Start Roo Shell
$ roo
- Hint
roo> hint
- Create Project
roo> project --topLevelPackage org.phstudy
Roo Samples
- Enter Roo Sample
$ cd $ROO_HOME/samples
- The step to run Roo Sample
$ mkdir bikeshop
$ cd bikeshop
$ roo script ../bikeshop.roo
$ mvn package jetty:run
More info: http://docs.spring.io/spring-roo/reference/html/intro.html#intro-exploring-sample
Persistence Layer Configuration
-
Setup persistence layer configuration
roo> persistence setup --provider {JPA_PROVIDER} --database {DATABASE_VENDOR} --...
- Setup MongoDB
roo> mongo setup --...
Domain Model
- Create a JPA Active Record entity
roo> entity jpa --class ~.model.Employee
-
Create a JPA
traditional entity
roo> entity jpa --class ~.model.Customer --activeRecord false
Active Record Entity - Employee
Trad. Entity - Customer
Active Record Pattern (Roo)
http://docs.spring.io/spring-roo/reference/html/base-layers.html http://www.martinfowler.com/eaaCatalog/activeRecord.html
Service and Repository Pattern
application layering
Add fields to Entity
- Focus on specific model
roo> focus --class ~.model.Employee
roo> focus --class ~.model.Customer
Add a Long type field to entity
roo> field number --fieldName age --type java.lang.Long
- Add a String type field to entity
roo> field string --fieldName firstname
app. architecture of Spring RoO
Roo is based on AspectJ inter-type declarations (ITDs)
http://docs.spring.io/spring-roo/reference/html/architecture.html
Persistence Layer
- Create Repository
roo> repository jpa --interface ~.repository.CustomerRepository --entity ~.model.Customer
-
Active Record entity does NOT need this layer.
Service Layer
- Create single service
roo> service type --interface ~.service.CustomerService --class ~.model.Customer
- Create all services
roo> service all --interfacePackage ~.service --classPackage ~.service.impl
- This layer is optional.
Web Service Layer
- Create RESTful Web Service
roo> json all --deepSerialize
roo> web mvc json setup
roo> web mvc json all --package ~.rest
http://docs.spring.io/spring-roo/reference/html/base-json.html
Presentation Layer
- Setup spring mvc
roo> web mvc setup
roo> web mvc all --package ~.web
http://docs.spring.io/spring-roo/reference/html/base-web.html
Command index
http://docs.spring.io/spring-roo/reference/html/command-index.html
Mapping Relationships Cheatsheet
- One to One (owning side and inverse side)
- Unidirection
- Bidirection
- One to Many (owning side, inverse side and jointable)
- Unidirection
- Bidirection
- Many to Many (owning side, inverse side and jointable)
- Unidirection
- Bidirection
One to One
Books
Getting Started with Roo
Spring Roo 1.1 Cookbook
Spring Roo in Action
Spring Roo:Open-Source Rapid Application Development for Java
Introduction to Spring Roo
By study
