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Difference between revisions of "REST support in STP"
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| − | In this step, we will provide a tool for generating Resource class from entity classes. User | + | In this step, we will provide a tool for generating Resource class from entity classes. User select the entity classes that generated from database to generate resource classes ,all these resource classes are annotated with annotations defined in jsr311 |
| − | + | specification. each entity class maps to two Resource classes, for example, Item class has ItemResource class and ItemsResource class, | |
| − | for example, Item | + | |
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Revision as of 04:18, 7 November 2007
Contents
Introduction
This page aims to define the basic processes on how to support REST in stp, there is sample to simplifies how to create a RESTfull service from a database directly.
There are two ways to support to create RESTfull service:
* Exposing a database to RESTfull service directly * Starting from importing some POJO class into a rest project
Exposing a database to RESTfull service directly
We can create a RESTfull service by starting from a database with the following steps:
1. Create a REST project using STP.Service Creation Wizard
add project nature "org.eclipse.jem.workbench.JavaEMFNature" which defined in WTP DALI subproject and Java Persistence Facet, once the project has the nature and JP Facet, some DALI function will be available in the subsequent steps.
2. Generate Entity classes from database
select a database to connect
select tables that want to be exposed as REST resource from the databse
the following classes will be generated:
three entities class will be generated, these classes are annotated with JPA annotations(by the way, the used JPA implementation library is Oracle TopLink), users can modify the annotations in the generated classes through JPA detail view, it looks like:
add all entity classes into a persistence unit by configuring persistence.xml
3. Generate Resources class for each entity class
In this step, we will provide a tool for generating Resource class from entity classes. User select the entity classes that generated from database to generate resource classes ,all these resource classes are annotated with annotations defined in jsr311 specification. each entity class maps to two Resource classes, for example, Item class has ItemResource class and ItemsResource class,