https://github.com/jesty/orientdb-javaee
A set of utilities to use OrientDB in a web application built with JavaEE stack
https://github.com/jesty/orientdb-javaee
Last synced: about 1 month ago
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A set of utilities to use OrientDB in a web application built with JavaEE stack
- Host: GitHub
- URL: https://github.com/jesty/orientdb-javaee
- Owner: jesty
- License: apache-2.0
- Created: 2016-11-06T10:17:59.000Z (over 9 years ago)
- Default Branch: master
- Last Pushed: 2016-11-07T07:57:30.000Z (over 9 years ago)
- Last Synced: 2025-03-21T00:30:43.386Z (about 1 year ago)
- Language: Java
- Homepage:
- Size: 14.6 KB
- Stars: 2
- Watchers: 1
- Forks: 2
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# orientdb-javaee
This project is an utilities set to use OrientDB in a JavaEE environment. Basically it solve 3 problems:
* Injecting the database instance.
* Handle the database connection for request.
* To avoid serialization issues it automatically detach the objects when return from a resource method (annotated wiht @GET, @POST, etc...)
This project was originally built to work with Jackson and RestEasy, but you can adapt to your needing.
If you want to create an application using this library you can use https://github.com/jesty/orientdb-microservices
Using this library, you can inject the database instance in your classes:
```java
@Inject
OObjectDatabaseTx db;
```
And when you do a query, you don't need to detach the object:
```java
@GET
public List getAll()
{
return db.command(new OSQLSynchQuery("select * from Example")).execute();
}
```
## Configuration
Download the source and install in your local repository using Maven
```
mvn install
```
Add the dependency to your pom file:
```xml
com.nutcore
orientdb-javaee
1.0
```
Configure a provider that supports the conversion of a OrientDB proxed object to a stream.
```java
ResteasyDeployment deployment = new ResteasyDeployment();
deployment.setProviderClasses(Arrays.asList(OrientDBJacksonProvider.class.getName()));
```
Add the servlet Filter in order to handle the database connection. Furthermore the database connection is also stored in a thread local, so you can inject or retrieve it using OrientDBUtil.getDatabase() static method.
```java
deploymentInfo.addFilter(new FilterInfo("/api", OrientDBFilter.class))
.addFilterUrlMapping("/api", "/*", DispatcherType.REQUEST);
```
Create a properties file named orientdb.properties and configure the properties below.
```
orientdb.entitymanager.packagename=com.example.domain
orientdb.database.password=root
orientdb.database.username=root
orientdb.database.url=remote:localhost/yourdatabase
```
If you want to run OrientDB Server as embedded you must add this servlet listener:
```java
deploymentInfo.addListener(Servlets.listener(OrientDBServletContextListener.class))
```
Create a db.config.xml file (in example folder there is a sample) in your classpath and use `plocal` protocol to connect to the database:
```
orientdb.database.url=plocal:your_database_folder/exampledb
```