Oracle JDBC driver question

Hi,

ResultSet resultSet = statement.executeQuery(query);

How does this actually work? Is the underlying object ( in my case OracleResultSet ) mapped onto the ResultSet interface, sitting on the same machine as the JVM ina fully populated state, or is the ResultSet merely a portal to the RDBMS server ( via JDBC ), whereby each method applied to the ResultSet involves some kind of network overhead?

Many thanks in advance!

p.s. I'm using an Oracle8 driver

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