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  2. JAVA400-L
  3. July 2010

Re: verifying JDBC connection

I check for a null value and then throw an exception or log the exception. Then I have a timer that waits and retries x number of times (set in a properties file) and then eventually throws an exception if the threshold of attempts has been exceeded.

Pete


On 7/7/2010 6:47 AM, Glenn Holmer wrote:
We sometimes have network problems here where a JDBC connection from a
Linux server to one of our AS/400s is dropped or cannot be established.
What is the best way to check for this in code before attempting
operations on the connection? I tried this:

conn = DriverManager.getConnection("jdbc:as400://"...
if (!conn.isValid(10)) {
// logging or notification here
}

but got this exception:

java.lang.AbstractMethodError:
com.ibm.as400.access.AS400JDBCConnection.isValid(I)Z

I could always grab the DatabaseMetaData and try to read it...?


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