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aukemid
 Post subject: IllegalArgumentException - getter method of property: id
PostPosted: Tue Apr 06, 2010 8:59 am 
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Joined: Wed Mar 10, 2010 4:48 am
Posts: 106
I'm making an application which uses multiple languages.
For this example I have the classes Country, Language and CountryName. CountryName has Foreign Keys to Country and Language.
For example: CountryName could contain: England, Engeland, Angleterre, Inglaterra.

I get the error below, which I can't solve.
Code:
ERROR - (BasicPropertyAccessor.java:191) - IllegalArgumentException in class: data.Country, getter method of property: id
org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of data.Country.id
   at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:195)
   at org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:206)
   at org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:3619)
   at org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:3335)
   at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:204)
   at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:241)
   at org.hibernate.type.EntityType.getIdentifier(EntityType.java:430)
   at org.hibernate.type.ManyToOneType.nullSafeSet(ManyToOneType.java:110)
   at org.hibernate.loader.Loader.bindPositionalParameters(Loader.java:1728)
   at org.hibernate.loader.Loader.bindParameterValues(Loader.java:1699)
   at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1589)
   at org.hibernate.loader.Loader.doQuery(Loader.java:696)
   at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259)
   at org.hibernate.loader.Loader.doList(Loader.java:2228)
   at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2125)
   at org.hibernate.loader.Loader.list(Loader.java:2120)
   at org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:118)
   at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1596)
   at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:306)
   at main.HibernateMain.main(HibernateMain.java:27)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:169)
   ... 19 more

These are the mappings:
Code:
   <class name="data.Country" table="countries">
      <id name="id" column="id" length="31">
         <generator class="assigned" />
      </id>

      <set name="countryNames" table="countryNames" inverse="true" cascade="delete">
         <key column="country" />
         <one-to-many class="data.CountryName" />
      </set>
   </class>
Code:
   <class name="data.Language" table="languages">
      <id name="id" column="id" length="31">
         <generator class="assigned" />
      </id>

      <set name="countryNames" table="countryNames" inverse="true" cascade="delete">
         <key column="language" />
         <one-to-many class="data.CountryName" />
      </set>
   </class>
Note: The id is used as a workaround. Country and Language should work as a composite key, but I can't get the composite-id working.
Code:
   <class name="data.CountryName" table="countryNames">
      <id name="id" column="id" length="31">
         <generator class="assigned" />
      </id>

      <properties name="countryLanguageUnique" unique="true">
         <many-to-one name="country" class="data.Country" column="country" not-null="true" />
         <many-to-one name="language" class="data.Language" column="language" not-null="true" />
      </properties>
      <property name="name" column="name" />
   </class>

And this is the class the error is complaining about:
Code:
public class Country
{
   private String id;
   private Set<CountryName> countryNames = new HashSet<CountryName>(0);
   ...
   
   /* Getters */
   public String getId()
   {
      return id;
   }
   
   public Set<CountryName> getCountryNames()
   {
      return countryNames;
   }
   
   /* Setters */
   private void setId(String id)
   {
      this.id = id;
   }
   
   public void setCountryNames(Set<CountryName> countryNames)
   {
      this.countryNames = countryNames;
   }
}

I'm using this test code:
Code:
   public static void main(String[] args)
   {
      Session session = SessionHandler.getSession();
      Criteria crit = session.createCriteria(CountryName.class)
            .add(Restrictions.eq("country", "Auke-yyyy-DDD-kk-mm-ss-SSS-0001"))
            .add(Restrictions.eq("language", "Auke-yyyy-DDD-kk-mm-ss-SSS-0001"));
      Logger.get().trace("Testing: 1");
      List<CountryName> list = crit.list();
      Logger.get().trace("Testing: 2");
      System.out.println(list.get(0).getName());
   }
}

The error occurs at: "List<CountryName> list = crit.list();"
Could someone take a look at it and if anything is unclear, please say so.


Last edited by aukemid on Tue Apr 13, 2010 7:12 am, edited 1 time in total.

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aukemid
 Post subject: Re: IllegalArgumentException - getter method of property: id
PostPosted: Mon Apr 12, 2010 5:43 am 
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Regular

Joined: Wed Mar 10, 2010 4:48 am
Posts: 106
Someone?

I've added a part of the log:
Code:
TRACE - (HibernateMain.java:26) - Testing: 1
DEBUG - (AbstractBatcher.java:410) - about to open PreparedStatement (open PreparedStatements: 0, globally: 0)
DEBUG - (ConnectionManager.java:444) - opening JDBC connection
TRACE - (DriverManagerConnectionProvider.java:116) - total checked-out connections: 0
TRACE - (DriverManagerConnectionProvider.java:122) - using pooled JDBC connection, pool size: 0
DEBUG - (SQLStatementLogger.java:111) - select this_.id as id50_0_, this_.country as country50_0_, this_.language as language50_0_, this_.name as name50_0_ from countryNames this_ where this_.country=? and this_.language=?
TRACE - (AbstractBatcher.java:513) - preparing statement
ERROR - (BasicPropertyAccessor.java:191) - IllegalArgumentException in class: data.Country, getter method of property: id
DEBUG - (AbstractBatcher.java:418) - about to close PreparedStatement (open PreparedStatements: 1, globally: 1)
TRACE - (AbstractBatcher.java:562) - closing statement
TRACE - (JDBCContext.java:260) - after autocommit
DEBUG - (ConnectionManager.java:427) - aggressively releasing JDBC connection
DEBUG - (ConnectionManager.java:464) - releasing JDBC connection [ (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0)]
TRACE - (DriverManagerConnectionProvider.java:152) - returning connection to pool, pool size: 1
TRACE - (AbstractFlushingEventListener.java:81) - flushing session
DEBUG - (AbstractFlushingEventListener.java:134) - processing flush-time cascades
TRACE - (Cascade.java:138) - processing cascade ACTION_SAVE_UPDATE for: data.Store
TRACE - (Cascade.java:173) - done processing cascade ACTION_SAVE_UPDATE for: data.Store
DEBUG - (AbstractFlushingEventListener.java:177) - dirty checking collections
TRACE - (AbstractFlushingEventListener.java:194) - Flushing entities and processing referenced collections
DEBUG - (Collections.java:199) - Collection found: [data.Store.passes#Auke], was: [data.Store.passes#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.cameras#Auke], was: [data.Store.cameras#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.transactions#Auke], was: [data.Store.transactions#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.storeMaps#Auke], was: [data.Store.storeMaps#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.storeSchedules#Auke], was: [data.Store.storeSchedules#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.storeCalendars#Auke], was: [data.Store.storeCalendars#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.workSchedules#Auke], was: [data.Store.workSchedules#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.workCalendars#Auke], was: [data.Store.workCalendars#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.storeModules#Auke], was: [data.Store.storeModules#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.storePasses#Auke], was: [data.Store.storePasses#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.storeEmployees#Auke], was: [data.Store.storeEmployees#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.employeeRules#Auke], was: [data.Store.employeeRules#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.ingredientContacts#Auke], was: [data.Store.ingredientContacts#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.contacts#Auke], was: [data.Store.contacts#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.positions#Auke], was: [data.Store.positions#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.rules#Auke], was: [data.Store.rules#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.measurements#Auke], was: [data.Store.measurements#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.ingredients#Auke], was: [data.Store.ingredients#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.saleTypes#Auke], was: [data.Store.saleTypes#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.currencies#Auke], was: [data.Store.currencies#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.discounts#Auke], was: [data.Store.discounts#Auke] (uninitialized)
DEBUG - (Collections.java:199) - Collection found: [data.Store.layouts#Auke], was: [data.Store.layouts#Auke] (uninitialized)
TRACE - (AbstractFlushingEventListener.java:233) - Processing unreferenced collections
TRACE - (AbstractFlushingEventListener.java:247) - Scheduling collection removes/(re)creates/updates
DEBUG - (AbstractFlushingEventListener.java:108) - Flushed: 0 insertions, 0 updates, 0 deletions to 1 objects
DEBUG - (AbstractFlushingEventListener.java:114) - Flushed: 0 (re)creations, 0 updates, 0 removals to 22 collections
DEBUG - (Printer.java:106) - listing entities:
DEBUG - (Printer.java:113) - data.Store{transactions=<uninitialized>, currencies=<uninitialized>, storeCalendars=<uninitialized>, ingredientContacts=<uninitialized>, passes=<uninitialized>, contacts=<uninitialized>, ingredients=<uninitialized>, id=Auke, storeSchedules=<uninitialized>, discounts=<uninitialized>, name=Test store Auke, storeMaps=<uninitialized>, saleTypes=<uninitialized>, storeOwner=null, cameras=<uninitialized>, employeeRules=<uninitialized>, franchise=data.Franchise#Auke-yyyy-DDD-kk-mm-ss-SSS-0001, storeModules=<uninitialized>, image=null, storeEmployees=<uninitialized>, workCalendars=<uninitialized>, stampMultiplier=1.0, rules=<uninitialized>, ip=null, measurements=<uninitialized>, positions=<uninitialized>, storeNumber=null, address=null, storePasses=<uninitialized>, language=data.Language#Auke-yyyy-DDD-kk-mm-ss-SSS-0001, layouts=<uninitialized>, workSchedules=<uninitialized>}
TRACE - (AbstractFlushingEventListener.java:313) - executing flush
TRACE - (ConnectionManager.java:492) - registering flush begin
TRACE - (ConnectionManager.java:501) - registering flush end
DEBUG - (ConnectionManager.java:427) - aggressively releasing JDBC connection
TRACE - (AbstractFlushingEventListener.java:344) - post flush
TRACE - (SessionImpl.java:300) - closing session
TRACE - (ConnectionManager.java:398) - connection already null in cleanup : no action
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FEB
 Post subject: Re: IllegalArgumentException - getter method of property: id
PostPosted: Mon Apr 12, 2010 7:11 am 
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Joined: Tue Mar 23, 2010 9:04 am
Posts: 6
I think it is a Serializable problem.
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aukemid
 Post subject: Re: IllegalArgumentException - getter method of property: id
PostPosted: Tue Apr 13, 2010 6:27 am 
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Regular

Joined: Wed Mar 10, 2010 4:48 am
Posts: 106
I came across this problem in some other mappings and the problem is probably in this peace of code:
Code:
<properties name="countryLanguageUnique" unique="true">
   <many-to-one name="country" class="data.Country" column="country" not-null="true" />
   <many-to-one name="language" class="data.Language" column="language" not-null="true" />
</properties>

I think because the many-to-one's aren't seen as properties, just as FK's.
Does anyone has a similar data structure working?
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