Hi,
Thank you for the prompt reply. I've tried ur method, but the problem
doesn't go away.
java.lang.NullPointerException
at org.exolab.castor.jdo.engine.JDOClassDescriptor.<init>(Unknown
Source)
at
org.exolab.castor.jdo.engine.JDOMappingLoader.createDescriptor(Unknown
Source)
at
org.exolab.castor.mapping.loader.MappingLoader.loadMapping(Unknown Source)
at org.exolab.castor.jdo.engine.JDOMappingLoader.loadMapping(Unknown
Source)
at org.exolab.castor.mapping.Mapping.getResolver(Unknown Source)
at org.exolab.castor.jdo.engine.DatabaseRegistry.loadDatabase(Unknown
Source)
at org.exolab.castor.jdo.JDO.getDatabase(Unknown Source)
...
The problem line of code becomes "db = jdo.getDatabase();"
I am using JBuilder7, and my file structure looks something like this:
/classes
/com
<copy of files at /xml>
accounts.xml <sample data>
acctConfig.xml <Config file>
acctMap.xml <mapping file>
/data
<where the generated classes from Source Generator are stored>
Acct.class
AcctDescriptor.class
AcctType.class
AcctTypeDescriptor.class
Desk.class
DeskDescriptor.class
DeskType.class
DeskTypeDescriptor.class
/sqlTest
<where the testing program's classes are stored>
AcctProcessor.class
testAcct.class
/src
/com
/data
<where the generated java files from Source Generator are stored>
Acct.java
AcctDescriptor.java
AcctType.java
AcctTypeDescriptor.java
Desk.java
DeskDescriptor.java
DeskType.java
DeskTypeDescriptor.java
/sqlTest
<where the testing program's java files are stored>
AcctProcessor.class
testAcct.class
/xml
<where the xml files are stored>
accounts.xml <sample data>
acctConfig.xml <Config file>
acctMap.xml <mapping file>
Are there any other problems in my files that might cause the Null Pointer
Exception?
--Johnny
-----Original Message-----
From: Bruce Snyder [mailto:[EMAIL PROTECTED]]
Sent: Thursday, October 03, 2002 3:44 PM
To: [EMAIL PROTECTED]
Subject: Re: [castor-dev] jdo setConfiguration problem with sybase
This one time, at band camp, Fong, Kakeungjohnny said:
FK>I have been trying to use Castor with Sybase, and here is the java code
for
FK>connecting the database:
FK>
FK> // Define the JDO object
FK> jdo = new JDO();
FK> jdo.setClassLoader( getClass().getClassLoader() );
FK> jdo.setConfiguration("acctConfig.xml");
Johnny,
Where does acctConfig.xml reside on the file system? Based on the above
code, unless it's in the directory from which the Java application is
launched, Castor will not find it.
A better strategy for locating it is to make use of:
getClass().getResource() - this will require that acctConfig.xml reside
where the calling .class resides
getClass().getClassLoader().getSystemResource() - this will locate
acctConfig.xml on the CLASSPATH
Bruce
--
perl -e 'print
unpack("u30","<0G)U8V4\@4VYY9&5R\"F9E<G)E=\$\!F<FEI+F-O;0\`\`");'
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