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Re: InstantDB: InstantDB table access from CMP EJB


Cindy

Phew - glad that one's solved! Although InstantDB should have reported the
different versions and offered a more helpful error message.

I'll have a look at why it didn't.

Pete
----- Original Message -----
From: "Cindy Tipper" <ctipper@laurelnetworks.com>
To: <instantDB@enhydra.org>
Sent: Friday, August 25, 2000 2:56 PM
Subject: Re: InstantDB: InstantDB table access from CMP EJB


> Problem solved.
>
> The version of InstantDB (idb.jar, specifically) shipped with the latest
> EnhydraEnterprise is version 3.13. I'm assuming the incompatible changes
> in v3.14 (and, therefore, 3.20 which I'm using) were biting me. I've
> moved Enhydra up to 3.20 and everyone is happy.
>
> Sorry for the flood of mail.
>
> -- Cindy
>
> Cindy Tipper wrote:
> >
> > Peter --
> >
> > Further follow-up....
> > If I create and populate the table using ScriptTool, and then try to use
> > the servlet to do the same (the servlet first attempts to drop the
> > table), I get the following stack trace:
> >
> > Cannot get connection: java.sql.SQLException: IO problem:
> > java.sql.SQLException: Internal error header recLength=3
> > Computed record length should be 419
> > Table: NE$db$Cols
> >         at jdbc.idbConnection.<init>(idbConnection.java:87)
> >         at jdbc.idbDriver.connect(idbDriver.java:40)
> >         at java.sql.DriverManager.getConnection(DriverManager.java:457)
> >         at java.sql.DriverManager.getConnection(DriverManager.java:159)
> >         at
> >
org.objectweb.jonas.jdbc_xa.XADataSourceImpl.getXAConnection(XADataSourceImp
l.java:155)
> >         at
> >
org.objectweb.jonas.dbm.ConnectionManager.getConnection(ConnectionManager.ja
va:294)
> >         at
> >
org.objectweb.jonas.dbm.ConnectionManager.getConnection(ConnectionManager.ja
va:257)
> >         at InitServlet.doGet(InitServlet.java:49)
> >         at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
> >         at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
> >         at
> >
org.apache.tomcat.core.ServiceInvocationHandler.method(ServletWrapper.java:6
32)
> >         at
> >
org.apache.tomcat.core.ServletWrapper.handleInvocation(ServletWrapper.java,
> > Compiled Code)
> >         at
> >
org.apache.tomcat.core.ServletWrapper.handleRequest(ServletWrapper.java:383)
> >         at
> > org.apache.tomcat.core.InvokerServlet.service(InvokerServlet.java:239)
> >         at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
> >         at
> >
org.apache.tomcat.core.ServiceInvocationHandler.method(ServletWrapper.java:6
32)
> >         at
> >
org.apache.tomcat.core.ServletWrapper.handleInvocation(ServletWrapper.java,
> > Compiled Code)
> >         at
> >
org.apache.tomcat.core.ServletWrapper.handleRequest(ServletWrapper.java:383)
> >         at
> > org.apache.tomcat.core.Context.handleRequest(Context.java:735)
> >         at
> >
org.enhydra.servlet.servletManager.ServletManager.service(ServletManager.jav
a:1347)
> >         at
> >
org.enhydra.servlet.servletManager.ServletManager.service(ServletManager.jav
a:1256)
> >         at
> >
org.enhydra.servlet.connectionMethods.http.HttpHandler.doARequest(HttpHandle
r.java,
> > Compiled Code)
> >         at
> >
org.enhydra.servlet.connectionMethods.http.HttpHandler.processRequests(HttpH
andler.java,
> > Compiled Code)
> >         at
> >
org.enhydra.servlet.connectionMethods.http.HttpHandler.run(HttpHandler.java,
> > Compiled Code)
> >         at java.lang.Thread.run(Thread.java:479)
> >
> > Peter Hearty wrote:
> > >
> > > Cindy
> > >
> > > When you say that you can't access tables, do you mean that you get a
file
> > > permissions error of some sort, or simply that the tables aren't
there?
> > >
> > > Regards
> > >
> > > Peter Hearty
> > > Lutris Technologies (UK)
> > > ----- Original Message -----
> > > From: "Cindy Tipper" <ctipper@laurelnetworks.com>
> > > To: <instantdb@enhydra.org>; <EnhydraEnterprise@enhydra.org>
> > > Sent: Thursday, August 24, 2000 10:36 PM
> > > Subject: InstantDB: InstantDB table access from CMP EJB
> > >
> > > > Not sure which list this belongs on...
> > > >
> > > > I have a simple Java client that creates CMP EJBs (using latest
versions
> > > > of EnhydraEnterprise and InstantDB). I've found that if I use
> > > > org.enhydra.instantdb.ScriptTool to create the table, using a file
with
> > > > the following code:
> > > >
> > > > ---------------------------------------------------
> > > > ; First load the JDBC driver and open a database.
> > > > d org.enhydra.instantdb.jdbc.idbDriver;
> > > > o jdbc:idb=<full_path_to_file>/NE.prp;
> > > >
> > > > e drop table ne_sample;
> > > > e create table ne_sample (
> > > >   name        varchar(30) unique primary key
> > > > );
> > > > e insert into ne_sample values("foo");
> > > > e insert into ne_sample values("bar");
> > > >
> > > > c close;
> > > > ----------------------------------------------------
> > > >
> > > > that I can't access the tables from my bean. However, if I use a
servlet
> > > > (using JDBC/Datasource; specifically a modified version of
InitServlet,
> > > > found in EETest) to do the same table creation steps, the beans then
> > > > have access to the table, even with server restarts. In both cases,
I
> > > > can use DBBrowser to view the table contents.
> > > >
> > > > Any thoughts? I'm new to Enhydra/InstantDB so I'm not sure if there
are
> > > > file permission issues (I'm grasping here!) that I might be missing,
or
> > > > something....
> > > >
> > > > Thanks --
> > > > Cindy
> > >
> --------------------------------------------------------------------------
> > > ---
> > > > To unsubscribe from this mailing list, send email to
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> > > > with the text "unsubscribe instantdb" in the body of the email.
> > > > If you have other questions regarding this mailing list, send email
to
> > > > the list admin at owner-instantdb@enhydra.org.
> > > >
> > >
> >
> --------------------------------------------------------------------------
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> > > the list admin at owner-instantdb@enhydra.org.
>
> --------------------------------------------------------------------------
---
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> > the list admin at owner-instantdb@enhydra.org.
> --------------------------------------------------------------------------
---
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>

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