[Proxool-developer] Wrapped Exceptions

[Bill H. <bi...@lo...>]

I have nearly finished implementing wrapped connections. This means that
every time we serve a connection then we wrap it up in a disposable
object. That way, once it is closed (i.e. returned to the pool) then
subsequent operations no longer mess with the internal connection (which
might be being used by someone else by this point).

Anyone know how a Connection should behave if you close it and then do
something to it? Here's a list of all the methods (for JDK 1.4). I've
grouped them into:

Should still work:
  isClosed
  hashcode
  finalize (protected anyway)
  clone ?
  equals
  toString

Should throw an exception:
  clearWarnings
  commit
  createStatement
  getWarnings
  prepareCall
  prepareStatement
  releaseSavepoint
  rollback

Should be silently ignored:
  close (API says it is a no-op)

I think that all of these should probably throw an exception:
  getAutoCommit
  getHoldability
  getTransactionIsolation
  getTypeMap
  isReadOnly
  nativeSQL
  setAutoCommit
  setCatalog
  setHoldability
  setReadOnly
  setSavepoint
  setSavepoint
  setTransactionIsolation
  setTypeMap

- Bill