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Java 为什么Spring在第一次调用存储库方法后关闭Runnable中的DB会话？

java spring hibernate postgresql jpa

Java 为什么Spring在第一次调用存储库方法后关闭Runnable中的DB会话？,java,spring,hibernate,postgresql,jpa,Java,Spring,Hibernate,Postgresql,Jpa,我正在使用JPA（Hibernate作为提供者）和PostgreSQL数据库开发SpringMVC应用程序。我想在后台将（耗时任务的）结果插入数据库，并创建了一个实现Runnable的serviceclass。在run方法中，我从存储库接收一个实体，但是当我尝试访问该实体的惰性集合时，数据库会话已经关闭（我得到一个惰性初始化异常） 我的后台服务的源代码： @Service @Scope("prototype") public class ProjectServiceTestThread impl

我正在使用JPA（Hibernate作为提供者）和PostgreSQL数据库开发SpringMVC应用程序。我想在后台将（耗时任务的）结果插入数据库，并创建了一个实现Runnable的serviceclass。在run方法中，我从存储库接收一个实体，但是当我尝试访问该实体的惰性集合时，数据库会话已经关闭（我得到一个惰性初始化异常）

我的后台服务的源代码：

@Service
@Scope("prototype")
public class ProjectServiceTestThread implements Runnable{

static Logger log = Logger.getLogger(ProjectServiceTestThread.class);

@Autowired
ProjectRepository projectRepository;

@Autowired
ScenarioRepository scenarioRepository;

@Override
@Transactional
public void run() {

    List<Project> projectList = projectRepository.findByName("thread test project");
    Project project;
    project = projectList.get(0);

    //A project can have multiple scenarios
    Scenario scenario;
    if (project.getScenarios().isEmpty()) { //this line fails -> lazyInitializationException - no Session
        System.err.println("Creating new scenario");
        scenario = new Scenario();
        scenario.setName("thread test scenario");
        scenario.setDescription(this + ".runServiceFunction at " + System.currentTimeMillis());
        scenario.setProject(project);
        scenario = scenarioRepository.save(scenario);
    } else {
        System.err.println("Using existing scenario");
        scenario = project.getScenarios().iterator().next();
    }
}    
}
配置：
有人能告诉我为什么它不能这样工作吗？我想出了一些方法让它工作，但我不明白为什么它不能与上面的代码一起工作。这三种方法可以正确插入场景，而不会在其间关闭数据库会话：

  • 从ProjectServiceTestThread中删除@Service并手动在配置中注册bean
  • 未实现Runnable并使用@Async注释ProjectServiceTestThread的run（）方法
  • 不使用Spring任务执行器
    • 编辑-项目实体：

    @Entity
@Table(name = "project", schema = "public", uniqueConstraints = @UniqueConstraint(columnNames = "name"))
public class Project implements java.io.Serializable {

private int prjid;
private SimulationModel simulationmodel;
private String name;
private String description;
private String designtarget;
private Date timehorizon;
private String location;
private Date createdon;
private Date updatedon;
private Integer createdby;
private Integer updatedby;
private Set<ObjectiveFunction> objectivefunctions = new HashSet<ObjectiveFunction>(
        0);
private Set<Scenario> scenarios = new HashSet<Scenario>(0);
private Set<ScenarioGenerator> scenariogenerators = new HashSet<ScenarioGenerator>(
        0);
private List<Component> components = new ArrayList<Component>();
private Set<OptConstraint> optconstraints = new HashSet<OptConstraint>(0);
private Set<SearchConstraint> searchconstraints = new HashSet<SearchConstraint>(
        0);
private Set<Metric> metrics = new HashSet<Metric>(0);
private Set<UserGroupProject> usergroupprojects = new HashSet<UserGroupProject>(
        0);
private Set<ExtParam> extparams = new HashSet<ExtParam>(0);

public Project() {
}

public Project(int prjid, String name) {
    this.prjid = prjid;
    this.name = name;
}

public Project(int prjid, SimulationModel simulationmodel, String name,
        String description, String designtarget, Date timehorizon, String location,
        Date createdon, Date updatedon, Integer createdby,
        Integer updatedby, Set<ObjectiveFunction> objectivefunctions,
        Set<Scenario> scenarios, Set<ScenarioGenerator> scenariogenerators,
        List<Component> components, Set<OptConstraint> optconstraints,
        Set<SearchConstraint> searchconstraints, Set<Metric> metrics,
        Set<UserGroupProject> usergroupprojects, Set<ExtParam> extparams) {
    this.prjid = prjid;
    this.simulationmodel = simulationmodel;
    this.name = name;
    this.description = description;
    this.designtarget = designtarget;
    this.timehorizon = timehorizon;
    this.location = location;
    this.createdon = createdon;
    this.updatedon = updatedon;
    this.createdby = createdby;
    this.updatedby = updatedby;
    this.objectivefunctions = objectivefunctions;
    this.scenarios = scenarios;
    this.scenariogenerators = scenariogenerators;
    this.components = components;
    this.optconstraints = optconstraints;
    this.searchconstraints = searchconstraints;
    this.metrics = metrics;
    this.usergroupprojects = usergroupprojects;
    this.extparams = extparams;
}

@SequenceGenerator(name="project_prjid_seq",sequenceName="project_prjid_seq") @GeneratedValue(strategy = GenerationType.SEQUENCE, generator="project_prjid_seq")
@Id
@Column(name = "prjid", unique = true, nullable = false)
public int getPrjid() {
    return this.prjid;
}

public void setPrjid(int prjid) {
    this.prjid = prjid;
}

@ManyToOne(fetch = FetchType.LAZY,cascade=CascadeType.PERSIST)
@JoinColumn(name = "modelid")
public SimulationModel getSimulationmodel() {
    return this.simulationmodel;
}

public void setSimulationmodel(SimulationModel simulationmodel) {
    this.simulationmodel = simulationmodel;
}

@Column(name = "name", unique = true, nullable = false, length = 50)
public String getName() {
    return this.name;
}

public void setName(String name) {
    this.name = name;
}

@Column(name = "description")
public String getDescription() {
    return this.description;
}

public void setDescription(String description) {
    this.description = description;
}

@Column(name = "designtarget", length = 50)
public String getDesigntarget() {
    return this.designtarget;
}

public void setDesigntarget(String designtarget) {
    this.designtarget = designtarget;
}

@Temporal(TemporalType.TIME)
@Column(name = "timehorizon", length = 15)
public Date getTimehorizon() {
    return this.timehorizon;
}

public void setTimehorizon(Date timehorizon) {
    this.timehorizon = timehorizon;
}

@Column(name = "location")
public String getLocation() {
    return this.location;
}

public void setLocation(String location) {
    this.location = location;
}

@Temporal(TemporalType.TIMESTAMP)
@Column(name = "createdon", length = 22)
public Date getCreatedon() {
    return this.createdon;
}

public void setCreatedon(Date createdon) {
    this.createdon = createdon;
}

@Temporal(TemporalType.TIMESTAMP)
@Column(name = "updatedon", length = 22)
public Date getUpdatedon() {
    return this.updatedon;
}

public void setUpdatedon(Date updatedon) {
    this.updatedon = updatedon;
}

@Column(name = "createdby")
public Integer getCreatedby() {
    return this.createdby;
}

public void setCreatedby(Integer createdby) {
    this.createdby = createdby;
}

@Column(name = "updatedby")
public Integer getUpdatedby() {
    return this.updatedby;
}

public void setUpdatedby(Integer updatedby) {
    this.updatedby = updatedby;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
public Set<ObjectiveFunction> getObjectivefunctions() {
    return this.objectivefunctions;
}

public void setObjectivefunctions(Set<ObjectiveFunction> objectivefunctions) {
    this.objectivefunctions = objectivefunctions;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
public Set<Scenario> getScenarios() {
    return this.scenarios;
}

public void setScenarios(Set<Scenario> scenarios) {
    this.scenarios = scenarios;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
public Set<ScenarioGenerator> getScenariogenerators() {
    return this.scenariogenerators;
}

public void setScenariogenerators(Set<ScenarioGenerator> scenariogenerators) {
    this.scenariogenerators = scenariogenerators;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
@OrderBy("componentid")
public List<Component> getComponents() {
    return this.components;
}

public void setComponents(List<Component> components) {
    this.components = components;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
public Set<OptConstraint> getOptconstraints() {
    return this.optconstraints;
}

public void setOptconstraints(Set<OptConstraint> optconstraints) {
    this.optconstraints = optconstraints;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
public Set<SearchConstraint> getSearchconstraints() {
    return this.searchconstraints;
}

public void setSearchconstraints(Set<SearchConstraint> searchconstraints) {
    this.searchconstraints = searchconstraints;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
public Set<Metric> getMetrics() {
    return this.metrics;
}

public void setMetrics(Set<Metric> metrics) {
    this.metrics = metrics;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
public Set<UserGroupProject> getUsergroupprojects() {
    return this.usergroupprojects;
}

public void setUsergroupprojects(Set<UserGroupProject> usergroupprojects) {
    this.usergroupprojects = usergroupprojects;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
public Set<ExtParam> getExtparams() {
    return this.extparams;
}

public void setExtparams(Set<ExtParam> extparams) {
    this.extparams = extparams;
}

    @实体
@表（name=“project”、schema=“public”、uniqueConstraints=@UniqueConstraint（columnNames=“name”））
公共类项目实现java.io.Serializable{
私营机构；
私有模拟模型；
私有字符串名称；
私有字符串描述；
私有字符串设计目标；
私有日期时间范围；
私有字符串位置；
私人约会；
私人日期更新；
创建的私有整数；
私有整数由更新；
私有集objectivefunctions=新哈希集(
0);
私有集场景=新哈希集（0）；
私有集scenariogenerators=新哈希集(
0);
私有列表组件=新的ArrayList（）；
私有集optconstraints=新哈希集（0）；
私有集searchconstraints=新哈希集(
0);
私有集度量=新哈希集（0）；
私有集usergroupprojects=新哈希集(
0);
私有集extparams=新哈希集（0）；
公共工程（）{
}
公共项目（int prjid，字符串名称）{
this.prjid=prjid；
this.name=名称；
}
公共项目（int-prjid、SimulationModel、SimulationModel、字符串名称、，
字符串说明、字符串设计目标、日期时间范围、字符串位置、，
日期createdon，日期UpdateOn，整数createdby，
整数更新者，Set objectivefunctions，
设置场景，设置场景生成器，
列出组件，设置OPT约束，
设置搜索约束，设置指标，
设置usergroupprojects，设置extparams）{
this.prjid=prjid；
this.simulationmodel=模拟模型；
this.name=名称；
this.description=描述；
this.designtarget=设计目标；
this.timehorizon=timehorizon；
这个位置=位置；
this.createdon=createdon；
this.updatedon=updatedon；
this.createdby=createdby；
this.updatedby=updatedby；
this.objectivefunctions=objectivefunctions；
这个场景=场景；
this.scenariogenerators=scenariogenerators；
这个。组件=组件；
this.optconstraints=optconstraints；
this.searchconstraints=searchconstraints；
这个。度量=度量；
this.usergroupprojects=usergroupprojects；
this.extparams=extparams；
}
@SequenceGenerator（name=“project_-prjid_-seq”，sequenceName=“project_-prjid_-seq”）@GeneratedValue（策略=GenerationType.SEQUENCE，generator=“project_-prjid_-seq”）
@身份证
@列（name=“prjid”，unique=true，nullable=false）
public int getPrjid（）{
返回此.prjid；
}
公共无效设置prjid（内部prjid）{
this.prjid=prjid；
}
@manytone（fetch=FetchType.LAZY，cascade=CascadeType.PERSIST）
@JoinColumn（name=“modelid”）
公共模拟模型getSimulationmodel（）{
返回此.simulationmodel；
}
public void setSimulationmodel（仿真模型仿真模型）{
this.simulationmodel=模拟模型；
}
@列（name=“name”，unique=true，nullable=false，length=50）
公共字符串getName（）{
返回此.name；
}
公共void集合名（字符串名）{
this.name=名称；
}
@列（name=“description”）
公共字符串getDescription（）{
返回此.description；
}
公共void集合描述（字符串描述）{
this.description=描述；
}
@列（name=“designtarget”，长度=50）
公共字符串getDesigntarget（）{
返回此.designtarget；
}
公共void setDesigntarget（字符串designtarget）{
this.designtarget=设计目标；
}
@时态（TemporalType.TIME）
@列（name=“timehorizon”，长度=15）
公共日期getTimehorizon（）{
返回这个.timehorizon；
}
公共无效设置时间范围（日期时间范围）{
this.timehorizon=timehorizon；
}
@列（name=“location”）
公共字符串getLocation（）{
返回此位置；
}
公共void集合位置（字符串位置）{
这个位置=位置；
}
@时态（TemporalType.TIMESTAMP）
@列（name=“createdon”，长度=22）
公共日期getCreatedon（）{
返回这个.createdon；
}
public void setCreatedon（日期createdon）{
this.createdon=createdon；
}
@时态（TemporalType.TIMESTAMP）
@列（name=“updatedon”，长度=22）
公共日期getUpdateOn（）{
返回此.updatedon；
}
public void setUpdatedon（Date updatedon）{
this.updatedon=updatedon；
}
@列（name=“createdby”）
公共整数getCreatedby（）{
返回this.createdby；
}
公共void setCreatedby（整数createdby）{
this.createdby=createdby；
}
@列（name=“updatedby”）
公共整数getUpdatedby（）{
返回此.updateBy；
}
public void setUpdatedby（整数updatedby）{
this.updatedby=updatedby；
}
@OneToMany（fetch=FetchType.LAZY，mappedBy=“project”）
公共集getObjectivefunctions（）{
返回此.objectivefunction

    09:50:31,438 TRACE JdbcCoordinatorImpl:525 - Closing prepared statement [select distinct project0_.prjid as prjid1_24_, project0_.createdby as createdb2_24_, project0_.createdon as createdo3_24_, project0_.description as descript4_24_, project0_.designtarget as designta5_24_, project0_.location as location6_24_, project0_.name as name7_24_, project0_.modelid as modelid11_24_, project0_.timehorizon as timehori8_24_, project0_.updatedby as updatedb9_24_, project0_.updatedon as updated10_24_ from public.project project0_ where lower(project0_.name) like ('%'||lower('thread test project')||'%')]
09:50:31,438 TRACE JdbcCoordinatorImpl:278 - Starting after statement execution processing [ON_CLOSE]
09:50:31,438 TRACE StatefulPersistenceContext:880 - Initializing non-lazy collections
09:50:31,439 TRACE SessionImpl:357 - Closing session
09:50:31,439 TRACE JdbcCoordinatorImpl:199 - Closing JDBC container [org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl@3b95a16b]
09:50:31,439 TRACE LogicalConnectionImpl:178 - Closing logical connection
09:50:31,439 DEBUG LogicalConnectionImpl:246 - Releasing JDBC connection
09:50:31,439 DEBUG LogicalConnectionImpl:264 - Released JDBC connection
09:50:31,442 TRACE LogicalConnectionImpl:190 - Logical connection closed
09:50:31,445 TRACE TransactionSynchronizationManager:243 - Removed value [org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$DefaultCrudMethodMetadata@7cc8f09] for key [public abstract java.util.List eu.cite.repository.ProjectRepository.findByName(java.lang.String)] from thread [myExecutor-1]
09:50:31,451 TRACE LazyInitializationException:53 - failed to lazily initialize a collection of role: eu.cite.model.Project.scenarios, could not initialize proxy - no Session
org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: eu.cite.model.Project.scenarios, could not initialize proxy - no Session
    at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:575)
    at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:214)
    at org.hibernate.collection.internal.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:155)
    at org.hibernate.collection.internal.PersistentSet.isEmpty(PersistentSet.java:166)
    at eu.cite.service.ProjectServiceTestThread.run(ProjectServiceTestThread.java:73)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

    

    <context:component-scan base-package="eu.cite.repository, eu.cite.service" scoped-proxy="targetClass" />
<jpa:repositories base-package="eu.cite.repository" />

<bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor"/>

<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="persistenceUnitName" value="punit"/>
    <property name="dataSource" ref="dataSource"></property>
    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
            <property name="showSql" value="true"></property>                   
        </bean>
    </property>
    <property name="jpaPropertyMap">
        <map>
            <entry key="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect"/>
            <entry key="hibernate.format_sql" value="true"/>    
            <entry key="hibernate.jdbc.batch_size" value="50"/>                 
            <entry key="hibernate.order_inserts" value="true"/>
        </map>
    </property>
</bean>

<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
    <property name="entityManagerFactory" ref="entityManagerFactory"/>
</bean>

<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/>

<bean id="ModelMapper" class="org.modelmapper.ModelMapper"></bean>

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName" value="org.postgresql.Driver"></property>  
    <property name="url" value="jdbc:postgresql://localhost:5432/Cite?autoReconnect=true"></property>
    <property name="username" value="cite"></property>
    <property name="password" value="***"></property>   
</bean>

<task:executor id="myExecutor"/>
<task:executor id="myExecutor"  pool-size="5"/>

    

    @Entity
@Table(name = "project", schema = "public", uniqueConstraints = @UniqueConstraint(columnNames = "name"))
public class Project implements java.io.Serializable {

private int prjid;
private SimulationModel simulationmodel;
private String name;
private String description;
private String designtarget;
private Date timehorizon;
private String location;
private Date createdon;
private Date updatedon;
private Integer createdby;
private Integer updatedby;
private Set<ObjectiveFunction> objectivefunctions = new HashSet<ObjectiveFunction>(
        0);
private Set<Scenario> scenarios = new HashSet<Scenario>(0);
private Set<ScenarioGenerator> scenariogenerators = new HashSet<ScenarioGenerator>(
        0);
private List<Component> components = new ArrayList<Component>();
private Set<OptConstraint> optconstraints = new HashSet<OptConstraint>(0);
private Set<SearchConstraint> searchconstraints = new HashSet<SearchConstraint>(
        0);
private Set<Metric> metrics = new HashSet<Metric>(0);
private Set<UserGroupProject> usergroupprojects = new HashSet<UserGroupProject>(
        0);
private Set<ExtParam> extparams = new HashSet<ExtParam>(0);

public Project() {
}

public Project(int prjid, String name) {
    this.prjid = prjid;
    this.name = name;
}

public Project(int prjid, SimulationModel simulationmodel, String name,
        String description, String designtarget, Date timehorizon, String location,
        Date createdon, Date updatedon, Integer createdby,
        Integer updatedby, Set<ObjectiveFunction> objectivefunctions,
        Set<Scenario> scenarios, Set<ScenarioGenerator> scenariogenerators,
        List<Component> components, Set<OptConstraint> optconstraints,
        Set<SearchConstraint> searchconstraints, Set<Metric> metrics,
        Set<UserGroupProject> usergroupprojects, Set<ExtParam> extparams) {
    this.prjid = prjid;
    this.simulationmodel = simulationmodel;
    this.name = name;
    this.description = description;
    this.designtarget = designtarget;
    this.timehorizon = timehorizon;
    this.location = location;
    this.createdon = createdon;
    this.updatedon = updatedon;
    this.createdby = createdby;
    this.updatedby = updatedby;
    this.objectivefunctions = objectivefunctions;
    this.scenarios = scenarios;
    this.scenariogenerators = scenariogenerators;
    this.components = components;
    this.optconstraints = optconstraints;
    this.searchconstraints = searchconstraints;
    this.metrics = metrics;
    this.usergroupprojects = usergroupprojects;
    this.extparams = extparams;
}

@SequenceGenerator(name="project_prjid_seq",sequenceName="project_prjid_seq") @GeneratedValue(strategy = GenerationType.SEQUENCE, generator="project_prjid_seq")
@Id
@Column(name = "prjid", unique = true, nullable = false)
public int getPrjid() {
    return this.prjid;
}

public void setPrjid(int prjid) {
    this.prjid = prjid;
}

@ManyToOne(fetch = FetchType.LAZY,cascade=CascadeType.PERSIST)
@JoinColumn(name = "modelid")
public SimulationModel getSimulationmodel() {
    return this.simulationmodel;
}

public void setSimulationmodel(SimulationModel simulationmodel) {
    this.simulationmodel = simulationmodel;
}

@Column(name = "name", unique = true, nullable = false, length = 50)
public String getName() {
    return this.name;
}

public void setName(String name) {
    this.name = name;
}

@Column(name = "description")
public String getDescription() {
    return this.description;
}

public void setDescription(String description) {
    this.description = description;
}

@Column(name = "designtarget", length = 50)
public String getDesigntarget() {
    return this.designtarget;
}

public void setDesigntarget(String designtarget) {
    this.designtarget = designtarget;
}

@Temporal(TemporalType.TIME)
@Column(name = "timehorizon", length = 15)
public Date getTimehorizon() {
    return this.timehorizon;
}

public void setTimehorizon(Date timehorizon) {
    this.timehorizon = timehorizon;
}

@Column(name = "location")
public String getLocation() {
    return this.location;
}

public void setLocation(String location) {
    this.location = location;
}

@Temporal(TemporalType.TIMESTAMP)
@Column(name = "createdon", length = 22)
public Date getCreatedon() {
    return this.createdon;
}

public void setCreatedon(Date createdon) {
    this.createdon = createdon;
}

@Temporal(TemporalType.TIMESTAMP)
@Column(name = "updatedon", length = 22)
public Date getUpdatedon() {
    return this.updatedon;
}

public void setUpdatedon(Date updatedon) {
    this.updatedon = updatedon;
}

@Column(name = "createdby")
public Integer getCreatedby() {
    return this.createdby;
}

public void setCreatedby(Integer createdby) {
    this.createdby = createdby;
}

@Column(name = "updatedby")
public Integer getUpdatedby() {
    return this.updatedby;
}

public void setUpdatedby(Integer updatedby) {
    this.updatedby = updatedby;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
public Set<ObjectiveFunction> getObjectivefunctions() {
    return this.objectivefunctions;
}

public void setObjectivefunctions(Set<ObjectiveFunction> objectivefunctions) {
    this.objectivefunctions = objectivefunctions;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
public Set<Scenario> getScenarios() {
    return this.scenarios;
}

public void setScenarios(Set<Scenario> scenarios) {
    this.scenarios = scenarios;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
public Set<ScenarioGenerator> getScenariogenerators() {
    return this.scenariogenerators;
}

public void setScenariogenerators(Set<ScenarioGenerator> scenariogenerators) {
    this.scenariogenerators = scenariogenerators;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
@OrderBy("componentid")
public List<Component> getComponents() {
    return this.components;
}

public void setComponents(List<Component> components) {
    this.components = components;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
public Set<OptConstraint> getOptconstraints() {
    return this.optconstraints;
}

public void setOptconstraints(Set<OptConstraint> optconstraints) {
    this.optconstraints = optconstraints;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
public Set<SearchConstraint> getSearchconstraints() {
    return this.searchconstraints;
}

public void setSearchconstraints(Set<SearchConstraint> searchconstraints) {
    this.searchconstraints = searchconstraints;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
public Set<Metric> getMetrics() {
    return this.metrics;
}

public void setMetrics(Set<Metric> metrics) {
    this.metrics = metrics;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
public Set<UserGroupProject> getUsergroupprojects() {
    return this.usergroupprojects;
}

public void setUsergroupprojects(Set<UserGroupProject> usergroupprojects) {
    this.usergroupprojects = usergroupprojects;
}

@OneToMany(fetch = FetchType.LAZY, mappedBy = "project")
public Set<ExtParam> getExtparams() {
    return this.extparams;
}

public void setExtparams(Set<ExtParam> extparams) {
    this.extparams = extparams;
}

    

    @Configuration
@EnableWebMvc
@ComponentScan({"eu.cite"}) 
public class appConfig extends WebMvcConfigurerAdapter {