Hi Rick,
Rick Hillegas wrote:
Hi Lance,
If ResultSet.getObject() throws an unimplemented feature exception,
should the corresponding ResultSetMetaData.getColumnClassName() throw
an exception? Return null?
A SQLException is the correct Exception to be thrown per the spec when
something is not implemented. I am not sure null is correct, i guess an
Exception given null is not specified in the javadocs as an appropriate
return value.
Thanks,
-Rick
Army wrote:
Rick Hillegas wrote:
Dan Debrunner wrote:
I think I see a similar problem with the upcoming XML changes. If we
return XML as CLOB in jdk 1.4 then applications will break when then
switch to the jdk that supports JDBC 4.0. Again for the same reason,
with jdk 1.4 getObject would return java.sql.Clob and in the JDBC 4.0
jdk it would return java.sql.SQLXML. I think for this case
get/setObject() should not succeed for XML columns until JDBC 4.0 is
supported.
Agreed.
Okay, sounds good. Then what should we return for the metadata
"class name"? Esp. ResultSetMetaData.getColumnClassName()?
The API for that method says:
"Returns the fully-qualified name of the Java class whose instances
are manufactured if the method ResultSet.getObject is called to
retrieve a value from the column."
So should a call to that method fail, too?
Army
