ProjectTo error message

[Fredrik Hultin]

I have a class that is annotated with @NodeEntity that I want to project to versionable nodeentity but that gives me an error and then hangs my application:

org.springframework.data.neo4j.mapping.InvalidEntityTypeException: Type interface org.springframework.data.neo4j.aspects.core.NodeBacked is neither a @NodeEntity nor a @RelationshipEntity

at org.springframework.data.neo4j.support.mapping.Neo4jMappingContext.createPersistentEntity(Neo4jMappingContext.java:55)

at org.springframework.data.neo4j.support.mapping.Neo4jMappingContext.createPersistentEntity(Neo4jMappingContext.java:43)

at org.springframework.data.mapping.context.AbstractMappingContext.addPersistentEntity(AbstractMappingContext.java:269)

at org.springframework.data.neo4j.support.mapping.Neo4jMappingContext.addPersistentEntity(Neo4jMappingContext.java:60)

at org.springframework.data.neo4j.support.mapping.Neo4jMappingContext.addPersistentEntity(Neo4jMappingContext.java:43)

at org.springframework.data.mapping.context.AbstractMappingContext.getPersistentEntity(AbstractMappingContext.java:190)

at org.springframework.data.neo4j.mapping.RelationshipInfo.<init>(RelationshipInfo.java:65)

at org.springframework.data.neo4j.mapping.RelationshipInfo.fromField(RelationshipInfo.java:75)

at org.springframework.data.neo4j.support.mapping.Neo4jPersistentPropertyImpl.extractRelationshipInfo(Neo4JPersistentPropertyImpl.java:142)

at org.springframework.data.neo4j.support.mapping.Neo4jPersistentPropertyImpl.<init>(Neo4JPersistentPropertyImpl.java:77)

at org.springframework.data.neo4j.support.mapping.Neo4jMappingContext.createPersistentProperty(Neo4jMappingContext.java:127)

at org.springframework.data.neo4j.support.mapping.Neo4jMappingContext.createPersistentProperty(Neo4jMappingContext.java:43)

at org.springframework.data.mapping.context.AbstractMappingContext$PersistentPropertyCreator.doWith(AbstractMappingContext.java:390)

at org.springframework.util.ReflectionUtils.doWithFields(ReflectionUtils.java:570)

at org.springframework.data.mapping.context.AbstractMappingContext.addPersistentEntity(AbstractMappingContext.java:281)

at org.springframework.data.neo4j.support.mapping.Neo4jMappingContext.addPersistentEntity(Neo4jMappingContext.java:60)

at org.springframework.data.neo4j.support.mapping.Neo4jMappingContext.addPersistentEntity(Neo4jMappingContext.java:43)

at org.springframework.data.mapping.context.AbstractMappingContext.getPersistentEntity(AbstractMappingContext.java:190)

at org.springframework.data.mapping.context.AbstractMappingContext.getPersistentEntity(AbstractMappingContext.java:159)

at org.springframework.data.neo4j.support.mapping.Neo4jEntityPersister.getPersistentEntity(Neo4jEntityPersister.java:266)

at org.springframework.data.neo4j.support.mapping.Neo4jEntityPersister.getMappingPolicy(Neo4jEntityPersister.java:262)

at org.springframework.data.neo4j.support.mapping.Neo4jEntityPersister.projectTo(Neo4jEntityPersister.java:206)

at org.springframework.data.neo4j.support.Neo4jTemplate.projectTo(Neo4jTemplate.java:192)

at org.springframework.data.neo4j.aspects.support.node.Neo4jNodeBacking.ajc$interMethod$org_springframework_data_neo4j_aspects_support_node_Neo4jNodeBacking$org_springframework_data_neo4j_aspects_core_NodeBacked$projectTo(Neo4jNodeBacking.aj:156)

at se.curveball.cway.domain.Node.projectTo(Node.java:1)

at se.curveball.cway.web.rest.artwork.ArtworkVersionController.createVersion(ArtworkVersionController.java:97)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:601)

at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)

at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)

at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)

at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)

at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)

at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:920)

at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:827)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)

at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:801)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)

at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)

at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)

at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)

at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)

at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)

at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)

at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)

at se.curveball.cway.security.rest.RestUsernamePasswordAuthenticationFilter.doFilter(RestUsernamePasswordAuthenticationFilter.java:76)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)

at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)

at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)

at org.springframework.security.web.access.channel.ChannelProcessingFilter.doFilter(ChannelProcessingFilter.java:144)

at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)

at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)

at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)

at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)

at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at se.curveball.cway.web.filter.Profiler.doFilter(Profiler.java:44)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at se.curveball.cway.web.filter.SessionFilter.doFilter(SessionFilter.java:33)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at se.curveball.cway.web.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:32)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at se.curveball.cway.web.filter.CacheFilter.doFilter(CacheFilter.java:60)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at se.curveball.cway.web.filter.P3PFilter.doFilter(P3PFilter.java:39)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)

at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:200)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)

at java.lang.Thread.run(Thread.java:722)

@NodeEntity

public class Object {

    public void replaceWith(Version version) {

        if (!version.hasPersistentState())

            version.save();

        Versionable versionable = projectTo(Versionable.class);

        versionable.createNewVersion((NodeBacked) version);

        versionable.persist();

    }

}

@NodeEntity

public class Versionable {

    public void createNewVersion(NodeBacked newVersion) {

        if (newVersion == null || !newVersion.hasPersistentState())

            throw new IllegalStateException("The new version cannot be null and has to be persisted!");

        relateTo(newVersion, "REPLACED_BY");

    }
}

I am sure I am doing it wrong. How should I have declared the createNewVersion method instead?

Cheers,

Fredrik