Hibernate Criteria无法检索嵌套对象的集合

Question

I have got a TeamPlayer object with a Player object as on of its attribute. The Player object has One-to-Many relation with PlayerSuspension .

When I try to retrieve all TeamPlayers and fetch all player's suspensions along with. It throws following error. Could you help me out where's the issue?

org.hibernate.QueryException: could not resolve property: ps of: we.data.weref.model.TeamPlayer
    at org.hibernate.persister.entity.AbstractPropertyMapping.propertyException(AbstractPropertyMapping.java:62)
    at org.hibernate.persister.entity.AbstractPropertyMapping.toType(AbstractPropertyMapping.java:56)
    at org.hibernate.persister.entity.AbstractEntityPersister.getSubclassPropertyTableNumber(AbstractEntityPersister.java:1770)
    at org.hibernate.persister.entity.BasicEntityPropertyMapping.toColumns(BasicEntityPropertyMapping.java:46)
    at org.hibernate.persister.entity.AbstractEntityPersister.toColumns(AbstractEntityPersister.java:1745)
    at org.hibernate.loader.criteria.CriteriaQueryTranslator.getColumns(CriteriaQueryTranslator.java:510)
    at org.hibernate.loader.criteria.CriteriaQueryTranslator.findColumns(CriteriaQueryTranslator.java:525)
    at org.hibernate.criterion.NullExpression.toSqlString(NullExpression.java:36)
    at org.hibernate.criterion.LogicalExpression.toSqlString(LogicalExpression.java:42)
    at org.hibernate.criterion.LogicalExpression.toSqlString(LogicalExpression.java:42)
    at org.hibernate.loader.criteria.CriteriaQueryTranslator.getWhereCondition(CriteriaQueryTranslator.java:400)
    at org.hibernate.loader.criteria.CriteriaJoinWalker.<init>(CriteriaJoinWalker.java:106)
    at org.hibernate.loader.criteria.CriteriaJoinWalker.<init>(CriteriaJoinWalker.java:75)
    at org.hibernate.loader.criteria.CriteriaLoader.<init>(CriteriaLoader.java:80)
    at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1760)
    at org.hibernate.internal.CriteriaImpl.list(CriteriaImpl.java:363)
    at we.data.weref.dao.hbn.TeamDaoHbn.getTeamPlayers(TeamDaoHbn.java:109)
    at we.data.weref.service.impl.TeamServiceImpl.getTeamPlayers(TeamServiceImpl.java:87)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
    at org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:68)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:208)
    at com.sun.proxy.$Proxy169.getTeamPlayers(Unknown Source)
    at we.data.weref.controller.api.TeamControllerApi.getTeamPlayers(TeamControllerApi.java:71)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:222)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:814)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:737)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:969)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:860)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845)
    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:51)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:316)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:126)
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:90)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:169)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
    at org.springframework.security.web.authentication.www.DigestAuthenticationFilter.doFilter(DigestAuthenticationFilter.java:233)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:53)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:91)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:213)
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:176)
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

My hibernate criteria is as following

    return getSession()
           .createCriteria(TeamPlayer.class, "tp")
           .createAlias("player.playerSuspensions", "ps", JoinType.LEFT_OUTER_JOIN)
             .add(Restrictions.and(
                 Restrictions.or(
                     Restrictions.isNull("ps"),
                     Restrictions.eq("ps.team.id", teamId)
                 ),
                 Restrictions.eq("tp.team.id", teamId)
            )
        )
        .list();


        @Entity
        public class TeamPlayer {

            @Id
            @GeneratedValue(strategy = GenerationType.IDENTITY)
            private Integer id;

            @ManyToOne
            @JsonSerialize(using = IdSerializer.class)
            private Team team;

            @ManyToOne
            @JsonSerialize(using = IdFirstNameLastNameSerializer.class)
            private Player player;

            public Integer getId() {
                return id;
            }
            public void setId(Integer id) {
                this.id = id;
            }
            public Player getPlayer() {
                return player;
            }
            public void setPlayer(Player player) {
                this.player = player;
            }
                public Team getTeam() {
                return team;
            }
            public void setTeam(Team team) {
                this.team = team;
            }
        }

    @Entity
    public class Player implements Serializable {
        private static final long serialVersionUID = 5688361063269574977L;

        @Id
        @GeneratedValue(strategy=GenerationType.IDENTITY)
        private Integer id;


        @OneToMany(mappedBy = "player")
        private List<PlayerSuspension> playerSuspensions;

        public Integer getId() {
            return id;
        }
        public void setId(Integer id) {
            this.id = id;
        }
      }

@Entity

public class PlayerSuspension implements Serializable {
    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue(strategy=GenerationType.IDENTITY)
    private Integer id;

    @ManyToOne
    private Player player;

    @ManyToOne
    private Team team;

    @ManyToOne                          // if competition == null then player is suspended from all the competitions
    private Competition competition;    // if competition given then only from that particular competition

    private Date startDate;
    private Integer games;
    private Integer weeks;
    private Integer gamesSpent;

    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public Player getPlayer() {
        return player;
    }
    public void setPlayer(Player player) {
        this.player = player;
    }
    public Team getTeam() {
        return team;
    }
    public void setTeam(Team team) {
        this.team = team;
    }
}

Answer 1

ps is an alias. You should specify a property name of PlayerSuspension . For an example ps.name .

You can use something like this (you can convert it to criteria). Maybe, it can be more simply

from TeamPlayer teamPlayer 
    left join teamPlayer.player player 
    left join player.playerSuspensions suspension
where suspension.team.id = :teamId 
    or not exists (select innerTeamPlayer.id from TeamPlayer innerTeamPlayer 
            inner join innerTeamPlayer.player innerPlayer 
            inner join innerPlayer.playerSuspensions
            where innerTeamPlayer.id = teamPlayer.id)

Update

You can't use TeamPlayer.getPlayerSuspension() with result of this HQL. Because of collections are lazy by default. You can try to fetch playerSuspensions by HQL with left join fetch

from TeamPlayer teamPlayer 
    left join teamPlayer.player player 
    left join fetch player.playerSuspensions suspension
where suspension.team.id = :teamId 
    or not exists (select innerTeamPlayer.id from TeamPlayer innerTeamPlayer 
            inner join innerTeamPlayer.player innerPlayer 
            inner join innerPlayer.playerSuspensions
            where innerTeamPlayer.id = teamPlayer.id)

or you can change a mapping

@OneToMany(fetch = FetchType.EAGER, mappedBy = "player")
private List<PlayerSuspension> playerSuspensions;