Remove unneeded code to get JDBC level in BrokeredConnection and BrokeredStatement classes

• Key: DERBY-3525
• Type: Improvement
• Status: Closed
• Resolution: Fixed
• Priority: Minor
• Assignee: Kathey Marsden
• Reporter: Knut Anders Hatlen
• Component/s: JDBC
• Affects Version/s: 10.5.1.1
• Fix Version/s: 10.3.3.0, 10.4.1.3, 10.5.1.1

Description

BrokeredConnection has a method called getJDBCLevel() whose only purpose is to provide a value that can be stored in BrokeredStatement.jdbcLevel. This field is only used once, in BrokeredStatement.createDuplicateStatement():

if (jdbcLevel == 2)
newStatement = conn.createStatement(resultSetType, resultSetConcurrency);
else
newStatement = conn.createStatement(resultSetType, resultSetConcurrency,
                    resultSetHoldability);

Since getJDBCLevel() only returns 2 if Java version 1.3 is used, and Derby doesn't support Java 1.3 any more, BrokeredConnection.getJDBCLevel() and BrokeredStatement.jdbcLevel could be removed.