How to use

connectInternal

method

in

org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor

/**
 * Connect to the database.
 * Exceptions are caught and re-thrown as EclipseLink exceptions.
 * Must set the transaction isolation.
 */
protected void connectInternal(Login login, AbstractSession session) throws DatabaseException {
  super.connectInternal(login, session);
  checkTransactionIsolation(session);
}

/**
 * Attempt to save some of the cost associated with getting a fresh connection.
 * Assume the DatabaseDriver has been cached, if appropriate.
 * Note: Connections that are participating in transactions will not be refreshed.^M
 */
protected void reconnect(AbstractSession session) throws DatabaseException {
  session.log(SessionLog.FINEST, SessionLog.CONNECTION, "reconnecting_to_external_connection_pool");
  session.startOperationProfile(SessionProfiler.CONNECT);
  connectInternal(this.login, session);
  session.endOperationProfile(SessionProfiler.CONNECT);
}

/**
 * Attempt to save some of the cost associated with getting a fresh connection.
 * Assume the DatabaseDriver has been cached, if appropriate.
 * Note: Connections that are participating in transactions will not be refreshed.^M
 */
protected void reconnect(AbstractSession session) throws DatabaseException {
  session.log(SessionLog.FINEST, SessionLog.CONNECTION, "reconnecting_to_external_connection_pool");
  session.startOperationProfile(SessionProfiler.ConnectionManagement);
  try {
    connectInternal(this.login, session);
  } finally {
    session.endOperationProfile(SessionProfiler.ConnectionManagement);
  }
}

/**
 * Attempt to save some of the cost associated with getting a fresh connection.
 * Assume the DatabaseDriver has been cached, if appropriate.
 * Note: Connections that are participating in transactions will not be refreshed.^M
 */
protected void reconnect(AbstractSession session) throws DatabaseException {
  session.log(SessionLog.FINEST, SessionLog.CONNECTION, "reconnecting_to_external_connection_pool");
  session.startOperationProfile(SessionProfiler.ConnectionManagement);
  try {
    connectInternal(this.login, session);
  } finally {
    session.endOperationProfile(SessionProfiler.ConnectionManagement);
  }
}

/**
 * Connect to the database.
 * Exceptions are caught and re-thrown as EclipseLink exceptions.
 * Must set the transaction isolation.
 */
@Override
protected void connectInternal(Login login, AbstractSession session) throws DatabaseException {
  super.connectInternal(login, session);
  checkTransactionIsolation(session);
  try {
    session.getPlatform().initializeConnectionData(getConnection());
  } catch (java.sql.SQLException sqlEx) {
    DatabaseException commException = processExceptionForCommError(session, sqlEx, null);
    if (commException != null) throw commException;
    throw DatabaseException.sqlException(sqlEx, this, session, false);
  }
}

/**
 * Connect to the database.
 * Exceptions are caught and re-thrown as EclipseLink exceptions.
 * Must set the transaction isolation.
 */
@Override
protected void connectInternal(Login login, AbstractSession session) throws DatabaseException {
  super.connectInternal(login, session);
  checkTransactionIsolation(session);
  try {
    session.getPlatform().initializeConnectionData(getConnection());
  } catch (java.sql.SQLException sqlEx) {
    DatabaseException commException = processExceptionForCommError(session, sqlEx, null);
    if (commException != null) throw commException;
    throw DatabaseException.sqlException(sqlEx, this, session, false);
  }
}

createCustomizer(session);
try {
  connectInternal(login, session);
  this.isInTransaction = false;
} catch (RuntimeException exception) {

createCustomizer(session);
try {
  connectInternal(login, session);
  this.isInTransaction = false;
} catch (RuntimeException exception) {

createCustomizer(session);
try {
  connectInternal(login, session);
  this.isInTransaction = false;
} catch (RuntimeException exception) {