Hi, there:
It might be JDBC question, because I just noticed it when I enable <track-statements> these days, so please bear with me posting it here.
I'm using jboss-3.2.6, jdk1.4.2, oracle 9i jdbc ojdbc14.jar. My code:
try{
...................
statement = con.createStatement();
resultSet = statement.executeQuery(QUERY_VIEW); //line A
callSomeFunc(resultSet);
//if(resultSet != null) resultSet.close();
resultSet = statement.executeQuery(QUERY_TABLE); //line B
callAnotherFunc(resultSet);
succeed = true;
}catch(SQLException se){
log.error("....");
}finally {
try{
if(resultSet != null) resultSet.close();
if(statement != null) statement.close();
if(con != null) con.close();
}catch(SQLException se){
log.error(");
}
}
At very beginning, I just close statement and con in finally section, which gives me warning information ask me to close resultset myself, so, I added resultSet.close before statement.close(). however, it still gives me warning information to close resultset myself, but this time asked me to close result set created in "line B". So, questions:
1. Isn't resultset supposed to automatically closed when statement is closed? and closed before retrieving the next result?
2. Is that oracle jdbc driver issue?
3. Should I explicitly close resultset before I close the statement and before retrieve the next result?
from jdk spec, it says:
A ResultSet object is automatically closed when the Statement object that generated it is closed, re-executed, or used to retrieve the next result from a sequence of multiple results.
Highly appreciated if any comments. Thanks a lot in advance
David
