If you are using spring data and mongodb, you can use these magic methods called “derived queries”, which make writing simple queries very easy.

However, you may run into a PropertyReferenceException: No property module found for <type> message, with an exception similar to the one below.

This means you have a typo in your derived query (miscapitalized word, misspelled word, etc), so take a long look at that Repository interface.


[mongod output] 10:09:58.421 [main] WARN o.s.c.a.AnnotationConfigApplicationContext [AbstractApplicationContext.java:487] - Exception encountered during context initialization - cancelling refresh attempt 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tripDAO': Invocation of init method failed; nested exception is org.springframework.data.mapping.PropertyReferenceException: No property module found for type Trip!
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574) ~[spring-beans-4.1.7.RELEASE.jar:4.1.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539) ~[spring-beans-4.1.7.RELEASE.jar:4.1.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) ~[spring-beans-4.1.7.RELEASE.jar:4.1.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303) ~[spring-beans-4.1.7.RELEASE.jar:4.1.7.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.1.7.RELEASE.jar:4.1.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299) ~[spring-beans-4.1.7.RELEASE.jar:4.1.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) ~[spring-beans-4.1.7.RELEASE.jar:4.1.7.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:736) ~[spring-beans-4.1.7.RELEASE.jar:4.1.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757) ~[spring-context-4.1.7.RELEASE.jar:4.1.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480) ~[spring-context-4.1.7.RELEASE.jar:4.1.7.RELEASE]
at org.springframework.context.annotation.AnnotationConfigApplicationContext.(AnnotationConfigApplicationContext.java:84) [spring-context-4.1.7.RELEASE.jar:4.1.7.RELEASE]
at com.katasi.decision_engine.AbstractMongoDbTest.createApplicationContext(AbstractMongoDbTest.java:49) [test-classes/:na] 
at org.apache.camel.testng.CamelSpringTestSupport.doPreSetup(CamelSpringTestSupport.java:71) [camel-testng-2.15.2.jar:2.15.2]
at com.katasi.decision_engine.processor.CreateTripTest.doPreSetup(CreateTripTest.java:66) [test-classes/:na]
at org.apache.camel.testng.CamelTestSupport.setUp(CamelTestSupport.java:215) [camel-testng-2.15.2.jar:2.15.2]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_31]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_31]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_31]
at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_31] 
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:85) [testng-6.8.21.jar:na]
at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:552) [testng-6.8.21.jar:na]
at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:215) [testng-6.8.21.jar:na]
at org.testng.internal.Invoker.invokeMethod(Invoker.java:636) [testng-6.8.21.jar:na]
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:882) [testng-6.8.21.jar:na]
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1189) [testng-6.8.21.jar:na]
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:124) [testng-6.8.21.jar:na]
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108) [testng-6.8.21.jar:na]
at org.testng.TestRunner.privateRun(TestRunner.java:767) [testng-6.8.21.jar:na]
at org.testng.TestRunner.run(TestRunner.java:617) [testng-6.8.21.jar:na]
at org.testng.SuiteRunner.runTest(SuiteRunner.java:348) [testng-6.8.21.jar:na]
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:343) [testng-6.8.21.jar:na]
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:305) [testng-6.8.21.jar:na]
at org.testng.SuiteRunner.run(SuiteRunner.java:254) [testng-6.8.21.jar:na]
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52) [testng-6.8.21.jar:na]
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86) [testng-6.8.21.jar:na]
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1224) [testng-6.8.21.jar:na]
at org.testng.TestNG.runSuitesLocally(TestNG.java:1149) [testng-6.8.21.jar:na]
at org.testng.TestNG.run(TestNG.java:1057) [testng-6.8.21.jar:na]
at org.apache.maven.surefire.testng.TestNGExecutor.run(TestNGExecutor.java:77) [surefire-testng-2.12.4.jar:2.12.4]
at org.apache.maven.surefire.testng.TestNGDirectoryTestSuite.executeMulti(TestNGDirectoryTestSuite.java:159) [surefire-testng-2.12.4.jar:2.12.4]
at org.apache.maven.surefire.testng.TestNGDirectoryTestSuite.execute(TestNGDirectoryTestSuite.java:99) [surefire-testng-2.12.4.jar:2.12.4]
at org.apache.maven.surefire.testng.TestNGProvider.invoke(TestNGProvider.java:106) [surefire-testng-2.12.4.jar:2.12.4]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_31]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_31] 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_31]
at java.lang.reflect.Method.invoke(Method.java:483) ~[na:1.8.0_31] 
at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189) [surefire-api-2.12.4.jar:2.12.4]
at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165) [surefire-booter-2.12.4.jar:2.12.4]
at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85) [surefire-booter-2.12.4.jar:2.12.4]
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115) [surefire-booter-2.12.4.jar:2.12.4]
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75) [surefire-booter-2.12.4.jar:2.12.4]
Caused by: org.springframework.data.mapping.PropertyReferenceException: No property module found for type Trip!
at org.springframework.data.mapping.PropertyPath.(PropertyPath.java:75) ~[spring-data-commons-1.10.2.RELEASE.jar:na]
at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:327) ~[spring-data-commons-1.10.2.RELEASE.jar:na]
at org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:307) ~[spring-data-commons-1.10.2.RELEASE.jar:na]
at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:270) ~[spring-data-commons-1.10.2.RELEASE.jar:na]
at org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:241) ~[spring-data-commons-1.10.2.RELEASE.jar:na]
at org.springframework.data.repository.query.parser.Part.(Part.java:76) ~[spring-data-commons-1.10.2.RELEASE.jar:na]
at org.springframework.data.repository.query.parser.PartTree$OrPart.(PartTree.java:235) ~[spring-data-commons-1.10.2.RELEASE.jar:na]
at org.springframework.data.repository.query.parser.PartTree$Predicate.buildTree(PartTree.java:373) ~[spring-data-commons-1.10.2.RELEASE.jar:na]
at org.springframework.data.repository.query.parser.PartTree$Predicate.(PartTree.java:353) ~[spring-data-commons-1.10.2.RELEASE.jar:na]
at org.springframework.data.repository.query.parser.PartTree.(PartTree.java:87) ~[spring-data-commons-1.10.2.RELEASE.jar:na]
at org.springframework.data.mongodb.repository.query.PartTreeMongoQuery.(PartTreeMongoQuery.java:53) ~[spring-data-mongodb-1.7.2.RELEASE.jar:na]
at org.springframework.data.mongodb.repository.support.MongoRepositoryFactory$MongoQueryLookupStrategy.resolveQuery(MongoRepositoryFactory.java:128) ~[spring-data-mongodb-1.7.2.RELEASE.jar:na]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.(RepositoryFactorySupport.java:367) ~[spring-data-commons-1.10.2.RELEASE.jar:na]
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:190) ~[spring-data-commons-1.10.2.RELEASE.jar:na]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:239) ~[spring-data-commons-1.10.2.RELEASE.jar:na]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:225) ~[spring-data-commons-1.10.2.RELEASE.jar:na]
at org.springframework.data.mongodb.repository.support.MongoRepositoryFactoryBean.afterPropertiesSet(MongoRepositoryFactoryBean.java:108) ~[spring-data-mongodb-1.7.2.RELEASE.jar:na]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1633) ~[spring-beans-4.1.7.RELEASE.jar:4.1.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1570) ~[spring-beans-4.1.7.RELEASE.jar:4.1.7.RELEASE]
... 50 common frames omitted

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