jpa select new with embedded key throws exception - jpa

Question

I am getting an exception when trying to run the following named query
#NamedQuery(name = "software.listAssemblies", query = "SELECT distinct NEW com.blackbox.dao.AssemblyToBootloaderDTO(s.id.assemblyId, s.filename) FROM Software s where s.id.platformId = :platformId and s.id.txaddress = :txaddress and s.filetype = 'SBL';")
If I remove the reference to the AssemblyToBootloaderDTO so the query reads
#NamedQuery(name = "software.listAssemblies", query = "SELECT distinct s.id.assemblyId, s.filename FROM Software s where s.id.platformId = :platformId and s.id.txaddress = :txaddress and s.filetype = 'SBL';")
then the query runs successfully returning a list of object[] as expected.
I have several named queries in my app that create DTO objects via SELECT NEW that run without a problem, but this is the first one I've tried where I'm using a field from an embedded key in the DTO so I'm guessing that I'm missing some syntax here. What do I need to do to get the mapping to the DTO class work?
#Entity
#Table(name="software")
#NamedQueries({
#NamedQuery(name = "software.listBootLoaders", query = "SELECT distinct s.filename FROM Software s where s.id.platformId = :platformId and s.id.txaddress = :txaddress and s.filetype = 'SBL';"),
#NamedQuery(name = "software.listAssemblies", query = "SELECT distinct NEW com.blackbox.dao.AssemblyToBootloaderDTO(s.id.assemblyId, s.filename) FROM Software s where s.id.platformId = :platformId and s.id.txaddress = :txaddress and s.filetype = 'SBL';")
})
public class Software implements Serializable {
private static final long serialVersionUID = 1L;
#EmbeddedId
private SoftwarePK id;
#Column(name="fileName", length=32)
private String filename;
#Column(name="fileType", length=8)
private String filetype;
#Column(name="predecessor", length=64)
private String predecessor;
#Column(name="successor", length=64)
private String successor;
//bi-directional many-to-one association to Hardware
#ManyToOne(fetch=FetchType.LAZY)
#JoinColumns({
#JoinColumn(name="assemblyId", referencedColumnName="assemblyId", nullable=false, insertable=false, updatable=false),
#JoinColumn(name="busId", referencedColumnName="busId", nullable=false, insertable=false, updatable=false),
#JoinColumn(name="hardwareId", referencedColumnName="hardwareId", nullable=false, insertable=false, updatable=false),
#JoinColumn(name="platformId", referencedColumnName="platformId", nullable=false, insertable=false, updatable=false),
#JoinColumn(name="txAddress", referencedColumnName="txAddress", nullable=false, insertable=false, updatable=false)
})
private Hardware hardware;
public Software() {
}
public SoftwarePK getId() {
return this.id;
}
public void setId(SoftwarePK id) {
this.id = id;
}
... getters/setters omitted
The embedded key;
#Embeddable
public class SoftwarePK implements Serializable {
//default serial version id, required for serializable classes.
private static final long serialVersionUID = 1L;
#Column(name="platformId",unique=true, nullable=false)
private int platformId;
#Column(name="busId", unique=true, nullable=false)
private int busid;
#Column(name="txAddress", unique=true, nullable=false, length=3)
private String txaddress;
#Column(name="assemblyId",unique=true, nullable=false, length=64)
private String assemblyId;
#Column(name="hardwareId",unique=true, nullable=false, length=64)
private String hardwareId;
#Column(name="sequence",unique=true, nullable=false)
private int sequence;
#Column(name="softwareId",unique=true, nullable=false, length=64)
private String softwareId;
public SoftwarePK() {
}
getters/setters omitted.
The DTO;
public class AssemblyToBootloaderDTO {
private String assemblyId;
private String softwareBootloaderId;
public AssemblyToBootloaderDTO(String assemblyId,
String softwareBootloaderId) {
this.assemblyId = assemblyId;
this.softwareBootloaderId = softwareBootloaderId;
}
public String getAssemblyId() {
return assemblyId;
}
public String getSoftwareBootloaderId() {
return softwareBootloaderId;
}
}
and the exception;
Exception [EclipseLink-6052] (Eclipse Persistence Services - 2.1.3.v20110304-r9073): org.eclipse.persistence.exceptions.QueryException
Exception Description: An outer join (getAllowingNull or anyOfAllowingNone) is only valid for OneToOne, OneToMany, ManyToMany, AggregateCollection and DirectCollection Mappings, and cannot be used for the mapping [org.eclipse.persistence.mappings.DirectToFieldMapping[assemblyId-->software.assemblyId]].
org.eclipse.persistence.exceptions.QueryException.outerJoinIsOnlyValidForOneToOneMappings(QueryException.java:924)
org.eclipse.persistence.internal.expressions.QueryKeyExpression.validateNode(QueryKeyExpression.java:863)
org.eclipse.persistence.expressions.Expression.normalize(Expression.java:3009)
org.eclipse.persistence.internal.expressions.DataExpression.normalize(DataExpression.java:342)
org.eclipse.persistence.internal.expressions.QueryKeyExpression.normalize(QueryKeyExpression.java:612)
org.eclipse.persistence.internal.expressions.QueryKeyExpression.normalize(QueryKeyExpression.java:599)
org.eclipse.persistence.internal.expressions.SQLSelectStatement.normalize(SQLSelectStatement.java:1311)
org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.buildReportQuerySelectStatement(ExpressionQueryMechanism.java:560)
org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.buildReportQuerySelectStatement(ExpressionQueryMechanism.java:506)
org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.prepareReportQuerySelectAllRows(ExpressionQueryMechanism.java:1527)
org.eclipse.persistence.queries.ReportQuery.prepareSelectAllRows(ReportQuery.java:1298)
org.eclipse.persistence.queries.ReadAllQuery.prepare(ReadAllQuery.java:625)
org.eclipse.persistence.queries.ReportQuery.prepare(ReportQuery.java:1047)
org.eclipse.persistence.queries.DatabaseQuery.checkPrepare(DatabaseQuery.java:509)
org.eclipse.persistence.queries.ObjectLevelReadQuery.checkPrepare(ObjectLevelReadQuery.java:820)
org.eclipse.persistence.queries.DatabaseQuery.prepareCall(DatabaseQuery.java:1588)
org.eclipse.persistence.internal.jpa.EJBQueryImpl.getDatabaseQueryInternal(EJBQueryImpl.java:568)
org.eclipse.persistence.internal.jpa.EntityManagerImpl.createNamedQuery(EntityManagerImpl.java:1001)
com.blackbox.dao.JpaSoftwareDao.listAssemblies(JpaSoftwareDao.java:168)
com.blackbox.services.Services.getAssemblyNames(Services.java:571)
com.blackbox.genesis.ccfeditor.services.NanocomService.buildSource(NanocomService.java:48)
com.blackbox.genesis.actions.ccfedit.DownloadCCForNanocom.execute(DownloadCCForNanocom.java:35)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:452)
com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:291)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:254)
com.blackbox.x.interceptors.LicenseInterceptor.intercept(LicenseInterceptor.java:75)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)
org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:133)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:190)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:243)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:142)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:166)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:176)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.blackbox.x.interceptors.Log4jMDCInterceptor.intercept(Log4jMDCInterceptor.java:51)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:190)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:187)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
com.blackbox.x.interceptors.RedirectMessageInterceptor.doIntercept(RedirectMessageInterceptor.java:78)
com.blackbox.x.interceptors.RedirectMessageInterceptor.intercept(RedirectMessageInterceptor.java:63)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:485)
org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
org.apache.struts2.dispatcher.ng.filter.StrutsExecuteFilter.doFilter(StrutsExecuteFilter.java:88)
com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129)
com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77)
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareFilter.doFilter(StrutsPrepareFilter.java:82)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:183)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:125)
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)

Answer 1

Seems to be a jpa/implementation bug, I am running eclipselink 2.3 and get the same issue.
As alternative, remove #Embeddable and #EmbeddedId and use #IdClass on entity level instead with #Id on your key fields i.e:
#Table(name = "MY_TABLE")
#IdClass(value=MyTableId.class)
public class MyTableEntity implements Serializable {
private static final long serialVersionUID = 1000L;
public static class MyTableId implements Serializable {
private static final long serialVersionUID = 1000L;
private Integer keyFieldOne;
private String keyFieldTwo;
public MyTableId() {
super();
}
public MyTableId(Integer keyFieldOne, String keyFieldTwo) {
this.keyFieldOne = keyFieldOne;
this.keyFieldTwo = keyFieldTwo;
}
#Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
MyTableId myTableId = (MyTableId)obj;
return Objects.equal(keyFieldOne, myTableId.keyFieldOne) && Objects.equal(keyFieldTwo, myTableId.keyFieldTwo);
}
#Override
public int hashCode() {
return Objects.hashCode(keyFieldOne, keyFieldTwo);
}
}
#Id
#Column(name = "KEY_FIELD_ONE", nullable = false)
private Integer keyFieldOne;
#Id
#Column(name = "KEY_FIELD_TWO", nullable = false, length = 8)
private String keyFieldTwo;
...
}
Note I used google guava for hash code and equals overrides

Answer 2

Seems to be an issue with the join inside the constructor element.
Try the latest/2.4 release, I would guess this has been fixed. If still not luck, please log a bug.