CODEWITHSUNDEEP
javaneo4jspring-data
David V
David V

Reputation: 161

Set path to embedded neo4j database at runtime

Can someone tell me how I can create service for an embedded neo4j database using spring-data but set the path to the database at runtime rather than at startup. In my application, the location of the database depends on input from the user. I currently have a database Service bean defined as follows:

@Bean
GraphDatabaseService graphDatabaseService() {
  GraphDatabaseService graphDB = new GraphDatabaseFactory().newEmbeddedDatabase("/path/to/db");
  return graphDB;
}

This does not work because I don't know what that path should be until after the application has started. Any help here would be appreciated.

Upvotes: 1

Views: 248

Answers (1)

tstorms
tstorms

Reputation: 5001

I don't think you can do this if you specify this bean already in your configuration class. If you do specify it in this file, make sure that you add the @Bean(destroyMethod = "shutdown") annotation on your creation method.

You can specify singleton beans at runtime. When you have the database directory, you could do something similar to this:

GraphDatabaseService graphDB = new GraphDatabaseFactory().newEmbeddedDatabase("user_dir");
// get a hold of ConfigurableApplicationContext#getBeanFactory()
beanFactory.registerSingleton("graphDatabaseService", graphDB);

Make sure to shutdown the GraphDatabaseService when the application exits.

Upvotes: 1

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