I don't see any obvious errors, but I would create a "singleton"
collection
manager.   Do the database registration once, also create your collection
once
and store it in a map.   Whenever you need it, get it from the
singleton.   The only
issue is when you close it...   You can close it everytime or leave it
open and close
it at the end of the program.   I leave mine open until I close the
program.

Mark

Jinsuo Zhang wrote:

> On Mon, 25 Mar 2002, Mark J. Stang wrote:
>
> > This is either a bug or something you are doing wrong.   Can you
> send
> > a sample of the code so the list can try and determine which it is?
> >
> > Mark
> >
>
> Hi, below is my code segment:
>     Thanks for help.
>
> public class DBXMLProxy
> {
>
>    public static String add_doc(String docname, String URI) throws
> Exception {
>       Collection col = null;
>       String retval;
>       try {
>          String driver =
> "org.apache.xindice.client.xmldb.DatabaseImpl";
>          Class c = Class.forName(driver);
>
>          Database database = (Database) c.newInstance();
>          DatabaseManager.registerDatabase(database);
>          col =
>
> DatabaseManager.getCollection("xmldb:xindice:///db/mobiledata");
>
>          String data = readFileFromDisk(docname);
>
>          XMLResource document = (XMLResource) col.createResource(URI,
>             "XMLResource");
>          document.setContent(data);
>          col.storeResource(document);
>          retval = "1";
>       }
>       catch (XMLDBException e) {
>          System.out.println("XML:DB Exception occured " + e.errorCode
> + " " +
>             e.getMessage());
>          retval = null;
>       }
>       finally {
>          if (col != null) {
>             col.close();
>          }
>       }
>       return retval;
>    }
>   ...
>   similar routines to do xml related work
>   ....
>
>    public static void main(String[] args) throws Exception
>     {
>       ...
>       loop
>       {
>         get request from other programs, and call requested routine.
>       }
>      ...
>    }
> }
>
> --
> Jinsuo Zhang
>
> CISE department
> Univ of Florida

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