With "calls the DAO" I mean invoking iBATIS from within a typehandler.
I tried the MS driver (on MSSQL database), same results:
java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Object has
been closed.
at com.microsoft.jdbc.base.BaseExceptions.createException(Unknown
Source)
at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
at com.microsoft.jdbc.base.BaseStatement.validateClosedState(Unknown
Source)
at com.microsoft.jdbc.base.BaseResultSet.validateClosedState(Unknown
Source)
at com.microsoft.jdbc.base.BaseResultSet.getTimestamp(Unknown Source)
at com.microsoft.jdbc.base.BaseResultSet.getTimestamp(Unknown Source)
at
org.apache.commons.dbcp.DelegatingResultSet.getTimestamp(DelegatingResultSet.java:261)
Niels
________________________________________
From: Clinton Begin [mailto:[EMAIL PROTECTED]
Sent: dinsdag 31 mei 2005 17:46
To: ibatis-user-java@incubator.apache.org
Subject: Re: Calling DAO within TypeHandlerCallback
DAOs never touch result sets. So I wonder what you mean by that? Similarly,
iBATIS only closes result sets once all columns have been iterated through (and
hence all TypeHandlers have been executed). Unfortunately some drivers (like
IBM's DB2 driver) like to close resultsets automatically when the last row is
read....you're using JTDS, which we've also had a lot of troubling reports
about. Just for giggles, can you try either the Microsoft driver or the Sybase
driver, depending on which database you're using?
Cheers,
Clinton
On 5/31/05, Niels Beekman <[EMAIL PROTECTED]> wrote:
Hi, me again :)
When using a TypeHandlerCallback-implementation that calls the DAO, any
subsequent property that iBATIS tries to fetch results in the following
error (this dump occurred with a Date-property):
java.sql.SQLException: Invalid state, the ResultSet object is closed.
at
net.sourceforge.jtds.jdbc.JtdsResultSet.checkOpen(JtdsResultSet.java:284
)
at
net.sourceforge.jtds.jdbc.JtdsResultSet.findColumn (JtdsResultSet.java:86
4)
at
net.sourceforge.jtds.jdbc.JtdsResultSet.getTimestamp(JtdsResultSet.java:
1225)
at
org.apache.commons.dbcp.DelegatingResultSet.getTimestamp(DelegatingResul
tSet.java:261)
at
com.ibatis.sqlmap.engine.type.DateTypeHandler.getResult(DateTypeHandler.
java:44)
at
com.ibatis.sqlmap.engine.mapping.result.BasicResultMap.getPrimitiveResul
tMappingValue( BasicResultMap.java:544)
at
com.ibatis.sqlmap.engine.mapping.result.BasicResultMap.getResults(BasicR
esultMap.java:303)
at
com.ibatis.sqlmap.engine.execution.SqlExecutor.handleResults(SqlExecutor
.java:363)
at
com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQuery(SqlExecutor.
java:184)
at
com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.sqlExecuteQu
ery(GeneralStatement.java :205)
at
com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQuery
WithCallback(GeneralStatement.java:173)
at
com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQuery
ForObject(GeneralStatement.java:104)
at
com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlM
apExecutorDelegate.java:561)
at
com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject (SqlM
apExecutorDelegate.java:536)
at
com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForObject(SqlMapSes
sionImpl.java:97)
at
com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForObject (SqlMapClie
ntImpl.java:70)
at
com.ibatis.dao.client.template.SqlMapDaoTemplate.queryForObject(SqlMapDa
oTemplate.java:162)
at
nl.wis.services.dao.impl.sqlmap.SqlMapBaseDaoTemplate.queryForObject (Sql
MapBaseDaoTemplate.java:120)
at <snip>
When just constructing objects within the handler (as stated in FAQ),
all goes well. I tried to do some debugging and it seems that the inner
DAO-call disposes the resultset, which would obviously result in the
stated error, but I'm not sure this is the case.
I really like the typehandlers, so hopefully this can be resolved...
Thanks again,
Niels
