Spring Data Neo4j: Using the server with an embedded

Question

I'm trying to configure my application context in order to be able to use the Neo4j server with an embedded graph in my app without much success. I'm using Spring Data at the same time (both Mongo and Neo4j repositories approach). This is my application-context, which isn't running:

<context:component-scan base-package="org.domain.team.project.*"/>

<mongo:repositories base-package="org.domain.team.project.data.repositories.mongodb"/>

    <!-- Neo4j -->
    <!--  <neo4j:config storeDirectory="/data/production/graph.db"/> -->
    <neo4j:repositories base-package="org.domain.team.project.data.repositories.neo4j"/>

    <neo4j:config graphDatabaseService="graphDatabaseService" />
    <bean id="graphDatabaseService" class="org.neo4j.kernel.EmbeddedGraphDatabase"
    destroy-method="shutdown">
        <constructor-arg index="0" value="/data/production/graph.db" />
        <constructor-arg index="1">
            <map><entry key="enable_remote_shell" value="true"/></map>
        </constructor-arg>
    </bean>
    <bean id="serverWrapper" class="org.neo4j.server.WrappingNeoServerBootstrapper" 
        init-method="start" destroy-method="stop">
            <constructor-arg ref="graphDatabaseService"/>
    </bean>

If I don't use this approach and specify simply the store directory (commented line) everything runs fine. I suspect it's a version between SDN and neo4j-server issue. This is my POM:

  <properties>
    <spring.data.mongo.version>1.1.0.RELEASE</spring.data.mongo.version>
    <spring.data.neo4j.version>2.1.0.RELEASE</spring.data.neo4j.version>
  </properties>

  <dependencies>
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-mongodb</artifactId>
        <version>${spring.data.mongo.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-neo4j</artifactId>
        <version>${spring.data.neo4j.version}</version>
    </dependency>
    <dependency>
        <groupId>org.neo4j.app</groupId>
        <artifactId>neo4j-server</artifactId>
        <version>1.8.2</version>
    </dependency>
    <dependency>
        <groupId>org.neo4j.app</groupId>
        <artifactId>neo4j-server</artifactId>
        <classifier>static-web</classifier>
        <version>1.8.2</version>
    </dependency>
  </dependencies>

Its parent has as a dependency Spring(core,context,test) 3.2.0 Release.

The concrete error being displayed is:

Caused by: java.lang.NoSuchFieldError: query_cache_size
    at org.neo4j.cypher.ExecutionEngine.org$neo4j$cypher$ExecutionEngine$$getQueryCacheSize(ExecutionEngine.scala:95)
    at org.neo4j.cypher.ExecutionEngine$$anon$1.<init>(ExecutionEngine.scala:91)
    at org.neo4j.cypher.ExecutionEngine.<init>(ExecutionEngine.scala:91)
    at org.neo4j.cypher.javacompat.ExecutionEngine.<init>(ExecutionEngine.java:54)
    at org.neo4j.cypher.javacompat.ExecutionEngine.<init>(ExecutionEngine.java:44)
    at org.springframework.data.neo4j.support.query.CypherQueryEngine.<init>(CypherQueryEngine.java:42)
    at org.springframework.data.neo4j.support.DelegatingGraphDatabase.createCypherQueryEngine(DelegatingGraphDatabase.java:217)
    at org.springframework.data.neo4j.support.DelegatingGraphDatabase.queryEngineFor(DelegatingGraphDatabase.java:190)
    at org.springframework.data.neo4j.support.MappingInfrastructureFactoryBean.afterPropertiesSet(MappingInfrastructureFactoryBean.java:146)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1545)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1483)
    ... 47 more

which as far as I am concerned, should be no problem as the default value is 100. The SDN doc does not talk too much about it. Any suggestions?

Thank you all in advance.

Gopi · Accepted Answer · 2013-04-09 16:03:32Z

4

Looks like version compatibility issue. For me below combination is working fine

spring-data-neo4j : 2.1.0.RC4
spring-data-mongodb : 1.1.0.RELEASE 
neo4j-server : 1.8
static-web : 1.8

Further, I am using-

Spring framework version : 3.1.2.RELEASE
Neo4j version : 1.8
mongodb version : 2.2.2
mongo-java-driver : 2.9.1
slf4j : 1.7.2

edited Apr 9, 2013 at 16:03

answered Apr 9, 2013 at 15:01

Gopi

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7 Comments

jarandaf Over a year ago

Downgrading to neo4j-server 1.8 version and solving some multiple SL4J bindings issues solved the problem, thanks!

jarandaf Over a year ago

By the way, the interface is ready under localhost:7474 but not under http://<private-ip-address>:7474. Any clues? It's a Neo4j box in the same private network which I would like being able to access.

jarandaf Over a year ago

Ok, solved it by implementing this class components.neo4j.org/neo4j-server/1.8/apidocs/org/neo4j/server/… and passing it as second parameter to the server wrapper. More details here: cakesolutions.net/teamblogs/2012/05/23/…

jarandaf Over a year ago

Why trying to package everything into a JAR gives issues? Running it from Eclipse works like a charm but running it from the JAR seems not to be working: the interface is visible but the complete functionality is lost. The server is giving all the time 500 error. This problem has been detected but no clear solution was provided: groups.google.com/forum/#!topic/neo4j/rjyf09pYIaM

Gopi Over a year ago

Interesting, but the post you are referring to seems to be talking about server plugin development. Are you developing a neo4j server plugin?

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