Has anyone managed to get spring-data-neo4j working with Grails in direct data access mode, as documented here?
I can't get Grails to respect the @Autowired tags below. The code below is a very simple version of the example given by spring in their documentation:
package hello;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.Transaction;
import org.neo4j.graphdb.factory.GraphDatabaseFactory;
import org.neo4j.kernel.impl.util.FileUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.neo4j.config.EnableNeo4jRepositories;
import org.springframework.data.neo4j.config.Neo4jConfiguration;
import org.springframework.data.neo4j.core.GraphDatabase;
import java.io.File;
@Configuration
@EnableNeo4jRepositories(basePackages = "hello")
public class Application extends Neo4jConfiguration {
public Application() {
setBasePackage("hello");
}
@Bean
GraphDatabaseService graphDatabaseService() {
return new GraphDatabaseFactory().newEmbeddedDatabase("accessingdataneo4j.db");
}
@Autowired
PersonRepository personRepository;
@Autowired
GraphDatabase graphDatabase;
public String test() throws Exception {
Person greg = new Person("Greg");
String rc = "";
Transaction tx = graphDatabaseService().beginTx();
try {
personRepository.save(greg);
rc = personRepository.findByName("Greg").toString();
tx.success();
} finally {
tx.close();
}
return rc;
}
}
I get the following error message when performing grails run-app (it's a much longer series of nested exceptions, but this is the main cause):
Error creating bean with name 'graphDatabase' defined in class path resource [hello/TestGraph.class]: Instantiation of bean failed; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: Factory method [public org.springframework.data.neo4j.core.GraphDatabase org.springframework.data.neo4j.config.Neo4jConfiguration.graphDatabase()] threw exception; nested exception is java.lang.IllegalArgumentException: requirement failed: Can't work with a null graph database
I've tried putting the following into Config.groovy:
grails.spring.bean.packages = ['org.neo4j.kernel', 'hello']
This should mean that I don't need to put anything in spring/resources.groovy, no?
In any case, it doesn't seem to work if I do this in it anyway:
beans = {
graphDatabase(GraphDatabase) {}
}
I get a different exception to start with, before getting the same exceptions as before:
spring.RuntimeSpringConfigUtilities [RuntimeConfiguration] Unable to load beans from resources.groovy groovy.lang.MissingPropertyException: No such property: GraphDatabase for class: resources at resources$_run_closure1.doCall(resources.groovy:4) at grails.spring.BeanBuilder.invokeBeanDefiningClosure(BeanBuilder.java:754) at grails.spring.BeanBuilder.beans(BeanBuilder.java:584) at grails.plugin.hibernate4.HibernatePluginSupport.checkExternalBeans(HibernatePluginSupport.groovy:464) at grails.plugin.hibernate4.HibernatePluginSupport$__clinit__closure1.doCall(HibernatePluginSupport.groovy:122) at grails.spring.BeanBuilder.invokeBeanDefiningClosure(BeanBuilder.java:754) at grails.spring.BeanBuilder.beans(BeanBuilder.java:584) at grails.spring.BeanBuilder.invokeMethod(BeanBuilder.java:527) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)
