JPA Criteria: Convert int to String then select from substring of resulting String
I have a String as parameter (which is in fact a valueOf(an Integer) and want to compare it to a substring of a int value in DB. Here is my code:
ClinicPatients clp = null;
// Get the criteria builder instance from entity manager
final CriteriaBuilder cb = getEntityManager().getCriteriaBuilder();
// Create criteria query and pass the value object which needs to be populated as result
CriteriaQuery<ClinicPatients> criteriaQuery = cb.createQuery(ClinicPatients.class);
// Tell to criteria query which tables/entities you want to fetch
final Root<ClinicPatients> rootClp = criteriaQuery.from(ClinicPatients.class);
criteriaQuery.select(rootClp);
Expression<String> e1 = cb.function("CONVERT", String.class, rootClp.get(idCPFieldName));
Predicate p1 = cb.equal(cb.substring(e1, 1, 3), idClinicPatient);
criteriaList.add(p1);
criteriaQuery.where(p1);
// Here entity manager will create actual SQL query out of criteria query
final TypedQuery<ClinicPatients> query = getEntityManager().createQuery(criteriaQuery);
List<ClinicPatients> lClps = (List<ClinicPatients>) query.getResultList();
if(lClps.size() > 0)
clp = lClps.get(0);
return clp;
I get an error and my guess is that the conversion to String is never done then Hibernate tries to substring some weird value, but i'm not sure of anything at this point. Here is the trace I get:
> DEBUG could not extract ResultSet [n/a] com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an
> error in your SQL syntax; check the manual that corresponds to your
> MySQL server version for the right syntax to use near '), 1, 3)='005''
> at line 1 at
> sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
> at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) at
> com.mysql.jdbc.Util.getInstance(Util.java:386) at
> com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1054) at
> com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4190) at
> com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4122) at
> com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2570) at
> com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2731) at
> com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2818) at
> com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2157)
> at
> com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2324)
> at
> org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:80)
> at org.hibernate.loader.Loader.getResultSet(Loader.java:2065) at
> org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1862)
> at
> org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1838)
> at org.hibernate.loader.Loader.doQuery(Loader.java:909) at
> org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:354)
> at org.hibernate.loader.Loader.doList(Loader.java:2553) at
> org.hibernate.loader.Loader.doList(Loader.java:2539) at
> org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2369) at
> org.hibernate.loader.Loader.list(Loader.java:2364) at
> org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:496) at
> org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:387)
> at
> org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:231)
> at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1264) at
> org.hibernate.internal.QueryImpl.list(QueryImpl.java:103) at
> org.hibernate.jpa.internal.QueryImpl.list(QueryImpl.java:573) at
> org.hibernate.jpa.internal.QueryImpl.getResultList(QueryImpl.java:449)
> at
> org.hibernate.jpa.criteria.compile.CriteriaQueryTypeQueryAdapter.getResultList(CriteriaQueryTypeQueryAdapter.java:67)
> at
> ca.chronometriq.commons.cmqfacade.ClinicPatientsFacade.findByIDClinicPatientFirstThreeDigitsVerificationNumber(ClinicPatientsFacade.java:150)
> at
> ca.chronometriq.commons.cmqfacade.ClinicPatientsFacade$$FastClassByCGLIB$$7cc86440.invoke(<generated>)
> at
> org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
> at
> org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:698)
> at
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
> at
> org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)
> at
> org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)
> at
> org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)
> at
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
> at
> org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:631)
> at
> ca.chronometriq.commons.cmqfacade.ClinicPatientsFacade$$EnhancerByCGLIB$$8afa98d9.findByIDClinicPatientFirstThreeDigitsVerificationNumber(<generated>) at
> ca.chronometriq.webterm.restapi.AdminModule.findByThreeDig(AdminModule.java:1474)
> at
> ca.chronometriq.webterm.restapi.AdminModule$$FastClassByCGLIB$$2e650668.invoke(<generated>)
> at
> org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
> at
> org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:627)
> at
> ca.chronometriq.webterm.restapi.AdminModule$$EnhancerByCGLIB$$e2195e01.findByThreeDig(<generated>)
> 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:606) at
> com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)
> at
> com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185)
> at
> com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
> at
> com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:288)
> at
> com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
> at
> com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
> at
> com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
> at
> com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1469)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1400)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1349)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1339)
> at
> com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416)
> at
> com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:537)
> at
> com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:699)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
> at
> org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
> 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:222)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
> at
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:611)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
> at
> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:409)
> at
> org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1044)
> at
> org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
> at
> org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1721)
> at
> org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1679)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:744)
Any idea?
