I have an object that I am persisting that has 2 PersistentEnum types properties. The object is created and the row is successfully inserted in the db, but when it is hydrated I am getting the following exception:
17:32:10,185 DEBUG [SessionFactoryImpl] - preparing statement
17:32:10,185 DEBUG [StringType] - binding '4028814efa8bb16f00fa8bb1c1230002' to parameter: 1
17:32:10,185 DEBUG [Loader] - processing result set
17:32:10,185 DEBUG [Loader] - result row: 4028814efa8bb16f00fa8bb1c1230002
17:32:10,185 DEBUG [Loader] - Initializing object from ResultSet: 4028814efa8bb16f00fa8bb1c1230002
17:32:10,185 DEBUG [Loader] - Hydrating entity: com.cougaarsoftware.core.message.assets.RegisteredAlertPGImpl#4028814efa8bb16f00fa8bb1c1230002
17:32:10,185 DEBUG [StringType] - returning null as column: alert_cl2_
17:32:10,185 DEBUG [StringType] - returning null as column: alert_id
17:32:10,185 DEBUG [BatcherImpl] - done closing: 0 open PreparedStatements, 0 open ResultSets
17:32:10,195 DEBUG [SessionFactoryImpl] - closing statement
java.lang.NullPointerException
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 net.sf.hibernate.type.PersistentEnumType.getInstance(PersistentEnumType.java:53)
at net.sf.hibernate.type.PersistentEnumType.get(PersistentEnumType.java:47)
at net.sf.hibernate.type.NullableType.nullSafeGet(NullableType.java:59)
at net.sf.hibernate.type.NullableType.nullSafeGet(NullableType.java:51)
at net.sf.hibernate.type.AbstractType.hydrate(AbstractType.java:66)
at net.sf.hibernate.loader.Loader.hydrate(Loader.java:419)
at net.sf.hibernate.loader.Loader.loadFromResultSet(Loader.java:373)
at net.sf.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:342)
at net.sf.hibernate.loader.Loader.getRow(Loader.java:281)
at net.sf.hibernate.loader.Loader.doFind(Loader.java:159)
at net.sf.hibernate.loader.Loader.loadEntity(Loader.java:587)
at net.sf.hibernate.loader.EntityLoader.load(EntityLoader.java:42)
at net.sf.hibernate.persister.EntityPersister.load(EntityPersister.java:396)
at net.sf.hibernate.impl.SessionImpl.doLoad(SessionImpl.java:1889)
at net.sf.hibernate.impl.SessionImpl.doLoadByClass(SessionImpl.java:1757)
at net.sf.hibernate.impl.SessionImpl.internalLoad(SessionImpl.java:1716)
at net.sf.hibernate.type.ManyToOneType.resolveIdentifier(ManyToOneType.java:62)
at net.sf.hibernate.impl.SessionImpl.initializeEntity(SessionImpl.java:1959)
at net.sf.hibernate.loader.Loader.doFind(Loader.java:196)
at net.sf.hibernate.loader.Loader.find(Loader.java:620)
at net.sf.hibernate.hql.QueryTranslator.find(QueryTranslator.java:928)
at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1343)
at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1322)
at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1314)
at com.cougaarsoftware.core.persistence.DatabaseServiceImpl.query(DatabaseServiceImpl.java:302)
[SNIP]
17:32:10,205 DEBUG [SessionImpl] - closing session
17:32:10,205 DEBUG [SessionImpl] - disconnecting session
17:32:10,205 DEBUG [DriverManagerConnectionProvider] - returning connection to pool, pool size: 1
17:32:10,205 DEBUG [SessionImpl] - transaction completion
Here is a section of my mapping file:
Code:
<!--RegisteredAlertPG-->
<class name="com.cougaarsoftware.core.message.assets.RegisteredAlertPGImpl" table="REGISTERED_ALERT_PG">
<id name="id" column="id" type="java.lang.String">
<generator class="uuid.hex"/>
</id>
<property name="alertclass" column="alert_class" type="java.lang.String"/>
<property name="alertId" column="alert_id" type="java.lang.String"/>
<property name="priority" column="priority" type="com.cougaarsoftware.core.domain.ldm.alert.request.AlertPriority"/>
<property name="type" column="type" type="com.cougaarsoftware.core.domain.ldm.alert.request.AlertType"/>
<property name="status" column="status" type="java.lang.String"/>
<property name="assigned" column="assigned" type="java.lang.String"/>
<bag name="actions" cascade="all">
<key column="registered_alert_id"/>
<one-to-many class="com.cougaarsoftware.core.message.assets.RegisteredAction"/>
</bag>
</class>
I have properly implemented toInt() and fromInt() in my PersistentEnum implementations. I am currently using Hibernate 2.0.3, but I have gotten the same results with 2.1.2. Stepping through the debugger, I can see that the Method.invoke() call in PersistentEnumType:53 is to AlertType.fromInt() with code=3.
I'm using j2sdk1.4.2 on Windows.
Any help is greatly appreciated.
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