loading entitymanagerFactory with eager association

Question

i have 3 classes with association one-to-many and i need to fetch eager since if not it's dosent' load me list of feature and list of task project -- feature -- task this is my class project

@Entity
@Table(name = "Project")
public class Project implements Serializable {


    private static final long serialVersionUID = 1L ;
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "ID", nullable = false)
    private int id;
    @Column(name = "nomProjet", nullable = true)
    private String nameProject;
    @Column(name = "etatProject", nullable = true)
    private String etatProject;

    @OneToMany(cascade = CascadeType.ALL, targetEntity = com.Model.feature.class,fetch=FetchType.EAGER)
    private List<Feature> features = new ArrayList<Feature>() ;

and my class feature

@Entity
@Table(name = "feature ")
public class feature implements Serializable{
    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "idfeature", nullable = false)
    private int idfeature;
    @Column(name = "namefeature", nullable = true)
    private String namefeature;



    @OneToMany(cascade = CascadeType.ALL, targetEntity = com.Task.class,fetch=FetchType.EAGER)
    private List<Task> task = new ArrayList<Task>() ;
}

and my class Task

@Entity
@Table(name = "Task")
public class Task implements Serializable {

    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "idTask", nullable = false)
    private int idTask;
    @Column(name = "nameTask", nullable = true)
    private String nameTask;
}

when i run my project i find this error

  ERROR (org.springframework.web.context.ContextLoader:220) - Context initialization failed

    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [applicationContext-jpa.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: testPU] Unable to build EntityManagerFactory
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1455)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1105)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:915)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:472)
        at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)
        at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)
        at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
        at org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:530)
        at org.mortbay.jetty.servlet.Context.startContext(Context.java:135)
        at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1218)
        at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:500)
        at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:448)
        at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
        at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:147)
        at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:161)
        at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
        at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:147)
        at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
        at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:117)
        at org.mortbay.jetty.Server.doStart(Server.java:217)
        at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:40)
        at org.mortbay.jetty.plugin.Jetty6PluginServer.start(Jetty6PluginServer.java:132)
        at org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty(AbstractJettyMojo.java:345)
        at org.mortbay.jetty.plugin.AbstractJettyMojo.execute(AbstractJettyMojo.java:286)
        at org.mortbay.jetty.plugin.AbstractJettyRunMojo.execute(AbstractJettyRunMojo.java:204)
        at org.mortbay.jetty.plugin.Jetty6RunMojo.execute(Jetty6RunMojo.java:183)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
        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 org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)

any help please

can you post your spring configuration file? – dReAmEr Dec 27 '14 at 05:37 — dReAmEr, Dec 27 '14 at 05:37
tnx @RE350 my prb was resolved : – name123456789 Dec 27 '14 at 11:47 — name123456789, Dec 27 '14 at 11:47

score 0 · Accepted Answer · answered Dec 27 '14 at 11:47

0

solution is to put agetr oneToMany : @LazyCollection(LazyCollectionOption.FALSE) and remove : fetch=FetchType.EAGER

answered Dec 27 '14 at 11:47

name123456789

19
1
6

score 0 · Answer 2 · edited May 23 '17 at 12:20

0

You can't load with FetchType.EAGER more than one List at a time with JPA2.

You can BTW load more Sets, so turning one or both your Lists into Sets would solve the problem. There are even more solutions other than that.

Note: the solution you find is hybrid since it's an Hibernate annotation, not a JPA2 one. I don't usually mix them, though there's nothing really wrong with that.

edited May 23 '17 at 12:20

Community

1
1

answered Dec 27 '14 at 17:14

Andrea Ligios

49,480
26
114
243

so if i change my list into set my prob will be solved even without this annotation? – name123456789 Dec 28 '14 at 18:13

loading entitymanagerFactory with eager association

2 Answers2