Category Archives: Java

Bits & pieces of information about Java

Using Domino’s Database.remove method

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When using the Lotus Domino Java API Database.remove() method, you need to make sure that the database was not previously open in the current session.

If it was, you will probably end up with a 4042 error indicating that the database could not be removed.

The best way to do the remove is create a database object and just hang on to it. When you are ready to remove the database, invoke the remove() method on the original database object instead of trying to create a new one.

Although the Database class has open() and isOpen() methods, it does not have a close() method.

gethostbyname pays attention to blanks?

I was working on my current project at work today and ran into an odd problem … a host name (that existed) could not be resolved.

The only different thing about the host name is that it was retrieved from an iSeries using JDBC.

I could ping the host without a problem … so I knew it was valid, but the “InetAddress.getByName()” method couldn’t resolve it.

After a while I noticed that the ending quote for the host name field wasn’t showing up in the variable debug window (of WDSC). So I added a “String.trim()” to the end of the “ResultSet.getString()” and getByName() was able to resolve the name.

I would have thought that getByName() would be able to deal with blanks on the end of a host name.