Hi,
I have a very complex object in java to be mapped in hibernate.
I am getting the '
org.hibernate.HibernateException: null index column for collection' error while trying to save it.
My object in java is ExecutionPolicy ..
Code:
public class ExecutionPolicy {
private Map<String, ExecutorConfiguration> executors = new HashMap<String, ExecutorConfiguration>();
}
public class ExecutorConfiguration {
private String id;
private InstrumentConfigurationMap instrumentMap = new InstrumentConfigurationMap();
}
public class InstrumentConfigurationMap {
private Integer id;
private Map<Instrument, InstrumentConfiguration> instruments = new HashMap<Instrument, InstrumentConfiguration>();
}
public class InstrumentConfiguration {
private MonetaryArray amountList;
}
public class MonetaryArray {
private Integer id;
private Monetary[] amounts;
}
and the mapping for above object is ..
Code:
<class name="ExecutionPolicy" table="EXECUTION_POLICY">
<id name="accountId" column="ACCOUNT_ID">
<generator class="assigned"/>
</id>
<map name="executors" table="EXECUTOR" cascade="all">
<key column="ACCOUNT_ID"/>
<index column="ID" type="string"/>
<composite-element class="ExecutorConfiguration">
<many-to-one name="instrumentMap"
column="INSTRUMENT_MAP_ID"
class="InstrumentConfigurationMap"
unique="true"
cascade="all"/>
</composite-element>
</map>
</class>
<class name="InstrumentConfigurationMap" table="INSTRUMENT_MAP">
<id name="id" column="ID">
<generator class="sequence">
<param name="sequence">policy_sequence</param>
</generator>
</id>
<map name="instruments" table="INSTRUMENTS" cascade="all">
<key column="ID"/>
<index column="INSTRUMENT" type="InstrumentUserTypes"/>
<composite-element class="InstrumentConfiguration">
<property name="amount" column="DEFAULT_AMOUNT" type="MonetaryUserTypes"/>
<many-to-one name="amountList"
column="AMOUNT_LIST_ID"
class="MonetaryArray"
unique="true"
cascade="save-update"/>
</composite-element>
</map>
</class>
<class name="MonetaryArray" table="AMOUNT_LIST">
<id name="id" column="ID">
<generator class="sequence">
<param name="sequence">policy_sequence</param>
</generator>
</id>
<array name="amounts" table="AMOUNT" cascade="all">
<key column="ID"/>
<list-index column="AMOUNT_INDEX"/>
<element column="AMOUNT" type="MonetaryUserTypes"/>
</array>
</class>
but the exception i get when i try to save the above object is..
Exception in thread "Main" org.springframework.orm.hibernate3.HibernateSystemException: null index column for collection: InstrumentConfigurationMap.instruments; nested exception is org.hibernate.HibernateException: null index column for collection: InstrumentConfigurationMap.instruments
at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:661)
at org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:412)
at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:424)
at org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374)
at org.springframework.orm.hibernate3.HibernateTemplate.find(HibernateTemplate.java:917)
at com.tsdevelopment.blackjack.server.dao.impl.hibernate.AccountDaoImpl.getAccountById(AccountDaoImpl.java:31)
at com.miriamlaurel.blackjack.server.services.DataManager.getAccountById(DataManager.java:61)
at com.miriamlaurel.blackjack.server.services.DbAccountManager.getAccount(DbAccountManager.java:58)
at com.miriamlaurel.blackjack.server.services.DbAccountManager.loadFromDatabase(DbAccountManager.java:143)
at com.miriamlaurel.blackjack.server.services.DbAccountManager.start(DbAccountManager.java:113)
at com.miriamlaurel.fi.managed.services.Services.start(Services.java:84)
at com.miriamlaurel.fi.managed.ManagedApplication.start(ManagedApplication.java:57)
at com.miriamlaurel.blackjack.server.Main.main(Main.java:13)
Caused by: org.hibernate.HibernateException: null index column for collection: InstrumentConfigurationMap.instruments
at org.hibernate.persister.collection.AbstractCollectionPersister.readIndex(AbstractCollectionPersister.java:732)
at org.hibernate.collection.PersistentMap.readFrom(PersistentMap.java:281)
at org.hibernate.loader.Loader.readCollectionElement(Loader.java:1031)
at org.hibernate.loader.Loader.readCollectionElements(Loader.java:669)
at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:614)
at org.hibernate.loader.Loader.doQuery(Loader.java:724)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259)
at org.hibernate.loader.Loader.loadCollection(Loader.java:2015)
at org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:59)
at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:587)
at org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:83)
at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1743)
at org.hibernate.collection.AbstractPersistentCollection.forceInitialization(AbstractPersistentCollection.java:476)
at org.hibernate.engine.StatefulPersistenceContext.initializeNonLazyCollections(StatefulPersistenceContext.java:867)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:264)
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.hql.QueryLoader.list(QueryLoader.java:401)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:361)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:196)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1148)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102)
at org.springframework.orm.hibernate3.HibernateTemplate$30.doInHibernate(HibernateTemplate.java:926)
at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:419)
if i remove the mapping for amount_list then object gets persisted without any problem.
Any idea what can be the problem?
ANY ANY help is appreciated!!
thanks
rooney
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