I'm trying to use Hibernate with an in-memory HSQLDB data base. In my program, I load a configuration that specifies an in-memory database, then I create the database schema with SchemaUpdate (apparently successfully), then I attempt to save an object (unsuccessfully). What am I missing? Many thanks!
Phil
Hibernate 2.1 beta 3
HSQLDB 1.7.1
===hibernate.cfg.xml start====
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 2.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-2.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- properties -->
<property name="hibernate.dialect">net.sf.hibernate.dialect.HSQLDialect</property>
<property name="hibernate.connection.driver_class">org.hsqldb.jdbcDriver</property>
<property name="hibernate.connection.url">jdbc:hsqldb:data/test</property>
<property name="hibernate.connection.username">sa</property>
<property name="hibernate.connection.password"></property>
<property name="hibernate.show_sql">true</property>
<!-- mapping files -->
<mapping resource="hibernateforum/Location.hbm.xml"/>
</session-factory>
</hibernate-configuration>
===hibernate.cfg.xml end====
===Location.hbm.xml start===
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 2.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd" >
<hibernate-mapping>
<!--
Created by the Middlegen Hibernate plugin
http://boss.bekk.no/boss/middlegen/
http://hibernate.sourceforge.net/
-->
<class
name="hibernateforum.Location"
table="locations"
>
<meta attribute="class-description" inherit="false">
@hibernate.class
table="locations"
</meta>
<id
name="id"
type="java.lang.Integer"
column="id"
unsaved-value="0"
>
<meta attribute="field-description">
@hibernate.id
generator-class="identity"
type="java.lang.Integer"
column="id"
unsaved-value="0"
</meta>
<generator class="identity" />
</id>
<property
name="name"
type="java.lang.String"
column="name"
not-null="true"
length="50"
>
<meta attribute="use-in-tostring">true</meta>
<meta attribute="field-description">
@hibernate.property
column="name"
length="50"
not-null="true"
</meta>
</property>
<property
name="description"
type="java.lang.String"
column="description"
not-null="true"
length="150"
>
<meta attribute="use-in-tostring">true</meta>
<meta attribute="field-description">
@hibernate.property
column="description"
length="150"
not-null="true"
</meta>
</property>
<!-- associations -->
</class>
</hibernate-mapping>
===Location.hbm.xml end===
===HsqldbInMemory.java extract start===
13 // load configuration
14 Configuration config = new Configuration();
15 config.configure();
16
17 // update database schema if required
18 new SchemaUpdate(config).execute(true);
19
20 // open a session
21 SessionFactory sessionFactory = config.buildSessionFactory();
22 Session session = sessionFactory.openSession();
23
24 // persist it
25 Location roomA = new Location("Room A", "Next to lobby");
26 try
27 {
28 session.saveOrUpdate(roomA);
29 session.flush();
30 session.connection().commit();
31 }
32 catch (Exception e)
33 {
34 session.connection().rollback();
35 }
36 System.out.println("\n*** Location added: " + roomA);
37
38 // close the session
39 session.close();
40 sessionFactory.close();
===HsqldbInMemory.java extract end===
===Stack trace and debug log start===
[java] INFO - Hibernate 2.1 beta 3
[java] INFO - hibernate.properties not found
[java] INFO - using CGLIB reflection optimizer
[java] INFO - Configuration resource: /hibernate.cfg.xml
[java] DEBUG - trying to locate
http://hibernate.sourceforge.net/hibern ... on-2.0.dtd in classpath under net/sf/hibernate/
[java] DEBUG - found
http://hibernate.sourceforge.net/hibern ... on-2.0.dtd in classpath
[java] DEBUG - hibernate.dialect=net.sf.hibernate.dialect.HSQLDialect
[java] DEBUG - hibernate.connection.driver_class=org.hsqldb.jdbcDriver
[java] DEBUG - hibernate.connection.url=jdbc:hsqldb:.
[java] DEBUG - hibernate.connection.username=sa
[java] DEBUG - hibernate.connection.password=
[java] DEBUG - hibernate.show_sql=true
[java] DEBUG - null<-org.dom4j.tree.DefaultAttribute@45e044 [Attribute: name resource value "hibernateforum/Location.hbm.xml"]
[java] INFO - Mapping resource: hibernateforum/Location.hbm.xml
[java] DEBUG - trying to locate
http://hibernate.sourceforge.net/hibern ... ng-2.0.dtd in classpath under net/sf/hibernate/
[java] DEBUG - found
http://hibernate.sourceforge.net/hibern ... ng-2.0.dtd in classpath
[java] INFO - Mapping class: hibernateforum.Location -> locations
[java] DEBUG - Mapped property: id -> id, type: integer
[java] DEBUG - Mapped property: name -> name, type: string
[java] DEBUG - Mapped property: description -> description, type: string
[java] INFO - Configured SessionFactory: null
[java] DEBUG - properties: {hibernate.cglib.use_reflection_optimizer=true
hibernate.connection.driver_class=org.hsqldb.jdbcDriver
hibernate.connection.password=
hibernate.connection.url=jdbc:hsqldb:.
hibernate.connection.username=sa
hibernate.dialect=net.sf.hibernate.dialect.HSQLDialect
hibernate.show_sql=true
java.runtime.name=Java(TM) 2 Runtime Environment Standard Edition
java.runtime.version=1.4.0_02-b02
java.vm.vendor=Sun Microsystems Inc.
java.vm.version=1.4.0_02-b02
os.name=Windows XP
os.version=5.1
sun.os.patch.level=Service Pack 1
...
}
[java] INFO - Using dialect: net.sf.hibernate.dialect.HSQLDialect
[java] INFO - Using Hibernate built-in connection pool (not for production use!)
[java] INFO - Hibernate connection pool size: 20
[java] INFO - using driver: org.hsqldb.jdbcDriver at URL: jdbc:hsqldb:.
[java] INFO - connection properties: {user=sa, password=}
[java] INFO - Running hbm2ddl schema update
[java] INFO - fetching database metadata
[java] DEBUG - total checked-out connections: 0
[java] DEBUG - opening new JDBC connection
[java] DEBUG - created connection to: jdbc:hsqldb:., Isolation Level: 1
[java] INFO - updating schema
[java] INFO - processing one-to-many association mappings
[java] INFO - processing one-to-one association property references
[java] INFO - processing foreign key constraints
[java] create table locations (id INTEGER NOT NULL IDENTITY, name VARCHAR(50) not null, description VARCHAR(150) not null)
[java] DEBUG - create table locations (id INTEGER NOT NULL IDENTITY, name VARCHAR(50) not null, description VARCHAR(150) not null)
[java] INFO - schema update complete
[java] INFO - cleaning up connection pool: jdbc:hsqldb:.
[java] INFO - processing one-to-many association mappings
[java] INFO - processing one-to-one association property references
[java] INFO - processing foreign key constraints
[java] INFO - Using dialect: net.sf.hibernate.dialect.HSQLDialect
[java] INFO - Use outer join fetching: false
[java] INFO - Using Hibernate built-in connection pool (not for production use!)
[java] INFO - Hibernate connection pool size: 20
[java] INFO - using driver: org.hsqldb.jdbcDriver at URL: jdbc:hsqldb:.
[java] INFO - connection properties: {user=sa, password=}
[java] INFO - No TransactionManagerLookup configured (use of process level read-write cache is not recommended)
[java] DEBUG - total checked-out connections: 0
[java] DEBUG - opening new JDBC connection
[java] DEBUG - created connection to: jdbc:hsqldb:., Isolation Level: 1
[java] DEBUG - returning connection to pool, pool size: 1
[java] INFO - Use scrollable result sets: true
[java] INFO - echoing all SQL to stdout
[java] INFO - Query language substitutions: {}
[java] INFO - cache provider: net.sf.hibernate.cache.JCSCacheProvider
[java] INFO - instantiating and configuring caches
[java] INFO - building session factory
[java] DEBUG - instantiating session factory with properties: {hibernate.cglib.use_reflection_optimizer=true
hibernate.connection.driver_class=org.hsqldb.jdbcDriver
hibernate.connection.password=
hibernate.connection.url=jdbc:hsqldb:.
hibernate.connection.username=sa
hibernate.dialect=net.sf.hibernate.dialect.HSQLDialect
hibernate.show_sql=true
java.runtime.name=Java(TM) 2 Runtime Environment Standard Edition
java.runtime.version=1.4.0_02-b02
java.vm.vendor=Sun Microsystems Inc.
java.vm.version=1.4.0_02-b02
os.name=Windows XP
os.version=5.1
sun.os.patch.level=Service Pack 1
...
}
[java] DEBUG - initializing class SessionFactoryObjectFactory
[java] DEBUG - registered: 98866d1ffc299f5f00fc299f62130000 (unnamed)
[java] INFO - no JNDI name configured
[java] DEBUG - instantiated session factory
[java] DEBUG - opened session
[java] DEBUG - unsaved-value: 0
[java] DEBUG - saveOrUpdate() unsaved instance
[java] DEBUG - saving [hibernateforum.Location#<null>]
[java] DEBUG - Inserting entity: hibernateforum.Location (native id)
[java] DEBUG - about to open: 0 open PreparedStatements, 0 open ResultSets
[java] DEBUG - total checked-out connections: 0
[java] DEBUG - using pooled JDBC connection, pool size: 0
[java] DEBUG - prepared statement get: insert into locations (name, description, id) values (?, ?, null)
[java] Hibernate: insert into locations (name, description, id) values (?, ?, null)
[java] DEBUG - preparing statement
[java] DEBUG - Dehydrating entity: [hibernateforum.Location#<null>]
[java] DEBUG - binding 'Room A' to parameter: 1
[java] DEBUG - binding 'Next to lobby' to parameter: 2
[java] DEBUG - SQL Exception
[java] java.sql.SQLException: Table not found: LOCATIONS in statement [insert into locations (name, description, id) values ('Room A', 'Next to lobby', null)]
[java] at org.hsqldb.Trace.getError(Unknown Source)
[java] at org.hsqldb.jdbcResultSet.<init>(Unknown Source)
[java] at org.hsqldb.jdbcConnection.executeStandalone(Unknown Source)
[java] at org.hsqldb.jdbcConnection.execute(Unknown Source)
[java] at org.hsqldb.jdbcStatement.fetchResult(Unknown Source)
[java] at org.hsqldb.jdbcStatement.executeUpdate(Unknown Source)
[java] at org.hsqldb.jdbcPreparedStatement.executeUpdate(Unknown Source)
[java] at net.sf.hibernate.persister.EntityPersister.insert(EntityPersister.java:504)
[java] at net.sf.hibernate.persister.EntityPersister.insert(EntityPersister.java:437)
[java] at net.sf.hibernate.impl.SessionImpl.doSave(SessionImpl.java:754)
[java] at net.sf.hibernate.impl.SessionImpl.save(SessionImpl.java:642)
[java] at net.sf.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:1227)
[java] at HsqldbInMemory.main(HsqldbInMemory.java:28)
[java] WARN - SQL Error: -22, SQLState: S0002
[java] ERROR - Table not found: LOCATIONS in statement [insert into locations (name, description, id) values ('Room A', 'Next to lobby', null)]
[java] DEBUG - done closing: 0 open PreparedStatements, 0 open ResultSets
[java] DEBUG - closing statement
[java] DEBUG - SQL Exception
[java] java.sql.SQLException: Table not found: LOCATIONS in statement [insert into locations (name, description, id) values ('Room A', 'Next to lobby', null)]
[java] at org.hsqldb.Trace.getError(Unknown Source)
[java] at org.hsqldb.jdbcResultSet.<init>(Unknown Source)
[java] at org.hsqldb.jdbcConnection.executeStandalone(Unknown Source)
[java] at org.hsqldb.jdbcConnection.execute(Unknown Source)
[java] at org.hsqldb.jdbcStatement.fetchResult(Unknown Source)
[java] at org.hsqldb.jdbcStatement.executeUpdate(Unknown Source)
[java] at org.hsqldb.jdbcPreparedStatement.executeUpdate(Unknown Source)
[java] at net.sf.hibernate.persister.EntityPersister.insert(EntityPersister.java:504)
[java] at net.sf.hibernate.persister.EntityPersister.insert(EntityPersister.java:437)
[java] at net.sf.hibernate.impl.SessionImpl.doSave(SessionImpl.java:754)
[java] at net.sf.hibernate.impl.SessionImpl.save(SessionImpl.java:642)
[java] at net.sf.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:1227)
[java] at HsqldbInMemory.main(HsqldbInMemory.java:28)
[java] WARN - SQL Error: -22, SQLState: S0002
[java] ERROR - Table not found: LOCATIONS in statement [insert into locations (name, description, id) values ('Room A', 'Next to lobby', null)]
[java] ERROR - could not insert: [hibernateforum.Location]
[java] java.sql.SQLException: Table not found: LOCATIONS in statement [insert into locations (name, description, id) values ('Room A', 'Next to lobby', null)]
[java] at org.hsqldb.Trace.getError(Unknown Source)
[java] at org.hsqldb.jdbcResultSet.<init>(Unknown Source)
[java] at org.hsqldb.jdbcConnection.executeStandalone(Unknown Source)
[java] at org.hsqldb.jdbcConnection.execute(Unknown Source)
[java] at org.hsqldb.jdbcStatement.fetchResult(Unknown Source)
[java] at org.hsqldb.jdbcStatement.executeUpdate(Unknown Source)
[java] at org.hsqldb.jdbcPreparedStatement.executeUpdate(Unknown Source)
[java] at net.sf.hibernate.persister.EntityPersister.insert(EntityPersister.java:504)
[java] at net.sf.hibernate.persister.EntityPersister.insert(EntityPersister.java:437)
[java] at net.sf.hibernate.impl.SessionImpl.doSave(SessionImpl.java:754)
[java] at net.sf.hibernate.impl.SessionImpl.save(SessionImpl.java:642)
[java] at net.sf.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:1227)
[java] at HsqldbInMemory.main(HsqldbInMemory.java:28)
[java] *** Location added: hibernateforum.Location@df1832[id=<null>,name=Room A,description=Next to lobby
]
[java] DEBUG - closing session
[java] DEBUG - disconnecting session
[java] DEBUG - returning connection to pool, pool size: 1
[java] DEBUG - transaction completion
[java] INFO - closing
[java] INFO - cleaning up connection pool: jdbc:hsqldb:.
===Stack trace and debug log end===
P.S. I hope I submitted this question correctly.
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