Bugs item #567441, was opened at 2002-06-11 17:27
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Category: JBossCMP
Group: v3.0 Rabbit Hole
Status: Open
Resolution: None
Priority: 5
Submitted By: Andras Soltesz (soltesz_andras)
Assigned to: Nobody/Anonymous (nobody)
Summary: EJB QL finder fails to map boolean,MySQL
Initial Comment:
Operating system: Windows Me
JDK version: 1.3.1_03
Server trace:
------------------------------------------------------------------
2002-06-11 17:03:05,330 DEBUG
[org.jboss.ejb.plugins.cmp.jdbc.JDBCEJBQLQuery.Map.findBig
Maps] Executing SQL: SELECT t0_m.id FROM MapTable t0_m
WHERE t0_m.bigMap = true
2002-06-11 17:03:05,660 DEBUG
[org.jboss.ejb.plugins.cmp.jdbc.JDBCEJBQLQuery.Map.findBig
Maps] Find failed
java.sql.SQLException: Column not found: Unknown column 'true'
in 'where clause'
at org.gjt.mm.mysql.MysqlIO.sendCommand
(MysqlIO.java:497)
at org.gjt.mm.mysql.MysqlIO.sqlQueryDirect
(MysqlIO.java:550)
at org.gjt.mm.mysql.Connection.execSQL
(Connection.java:885)
at org.gjt.mm.mysql.PreparedStatement.executeQuery
(PreparedStatement.java:288)
at
org.jboss.resource.adapter.jdbc.local.LocalPreparedStatement.
executeQuery(LocalPreparedStatement.java:289)
at
org.jboss.ejb.plugins.cmp.jdbc.JDBCAbstractQueryCommand.ex
ecute(JDBCAbstractQueryCommand.java:107)
at
org.jboss.ejb.plugins.cmp.jdbc.JDBCFindEntitiesCommand.exec
ute(JDBCFindEntitiesCommand.java:40)
at
org.jboss.ejb.plugins.cmp.jdbc.JDBCStoreManager.findEntities
(JDBCStoreManager.java:473)
at
org.jboss.ejb.plugins.CMPPersistenceManager.findEntities
(CMPPersistenceManager.java:348)
at
org.jboss.resource.connectionmanager.CachedConnectionInterc
eptor.findEntities(CachedConnectionInterceptor.java:284)
at org.jboss.ejb.EntityContainer.find
(EntityContainer.java:662)
at java.lang.reflect.Method.invoke(Native Method)
at
org.jboss.ejb.EntityContainer$ContainerInterceptor.invokeHome
(EntityContainer.java:1116)
at
org.jboss.ejb.plugins.AbstractInterceptor.invokeHome
(AbstractInterceptor.java:73)
at
org.jboss.ejb.plugins.EntitySynchronizationInterceptor.invokeHo
me(EntitySynchronizationInterceptor.java:257)
at
org.jboss.resource.connectionmanager.CachedConnectionInterc
eptor.invokeHome(CachedConnectionInterceptor.java:176)
at
org.jboss.ejb.plugins.EntityInstanceInterceptor.invokeHome
(EntityInstanceInterceptor.java:134)
at
org.jboss.ejb.plugins.EntityLockInterceptor.invokeHome
(EntityLockInterceptor.java:79)
at
org.jboss.ejb.plugins.EntityCreationInterceptor.invokeHome
(EntityCreationInterceptor.java:44)
at
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext
(AbstractTxInterceptor.java:98)
at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions
(TxInterceptorCMT.java:167)
at
org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome
(TxInterceptorCMT.java:52)
at
org.jboss.ejb.plugins.SecurityInterceptor.invokeHome
(SecurityInterceptor.java:104)
at org.jboss.ejb.plugins.LogInterceptor.invokeHome
(LogInterceptor.java:109)
at org.jboss.ejb.EntityContainer.invokeHome
(EntityContainer.java:487)
at org.jboss.ejb.Container.invoke(Container.java:726)
at org.jboss.ejb.EntityContainer.invoke
(EntityContainer.java:1055)
at org.jboss.mx.server.MBeanServerImpl.invoke
(MBeanServerImpl.java:491)
at
org.jboss.invocation.jrmp.server.JRMPInvoker.invoke
(JRMPInvoker.java:364)
at java.lang.reflect.Method.invoke(Native Method)
at sun.rmi.server.UnicastServerRef.dispatch
(UnicastServerRef.java:236)
at sun.rmi.transport.Transport$1.run
(Transport.java:147)
at java.security.AccessController.doPrivileged(Native
Method)
at sun.rmi.transport.Transport.serviceCall
(Transport.java:143)
at
sun.rmi.transport.tcp.TCPTransport.handleMessages
(TCPTransport.java:460)
at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run
(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:479)
-----------------------------------------------------------------------------------
Reproduction of the bug:
I have a simple entity bean (Map) with a boolean property called
bigMap. The entity is stored in a MySQL table called MapTable.
I have a finder method defined for the entity in the ejb-jar.xml. The
definition of the query:
<query>
<query-method>
<method-name>findBigMaps</method-name>
<method-params/>
</query-method>
<ejb-ql>
SELECT OBJECT(m) FROM MapBean AS m WHERE
m.bigMap=true
</ejb-ql>
</query>
-The deployment goes all right (including the automatic table
creation in the MySQL database).
-Object creation through the home interface is OK, the boolean
property is mapped to a TINYINT database field (0-true, 1-false).
I checked it on the MySQL console, the values are correctly
translated during the creation of a new object.
-When I want to find the objects which have the bigMap property
set to true (with the findBigMap finder method declared in the ejb-
jar.xml) I get the exception aforementioned.
When I use the Hypersonic database with table autocreate, the
finder works perfectly. This can mean that the EJB QL boolean
value mapping (1=true) doesn't work only with the MySQL
database. In case of the Hypersonic there might not need to
translate booleans, that might be why the feature developers
didn't notice the bug earlier.
This finder worked perfectly when I used this bean as an 1.1
entity bean and I had this finder defined in the jaws.xml. When I
rewrote the bean as an EJB 2.0 compliant bean I had to use the
jbosscmp-jdbc.xml instead of the jaws.xml and define the finder
in the ejb-jar.xml as a standard EJB QL finder method.
----------------------------------------------------------------------
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