/**
* Removes the specified driver from the {@code DriverManager}'s list of registered drivers.
*
* <p>If a {@code null} value is specified for the driver to be removed, then no action is taken.
*
* <p>If a security manager exists and its {@code checkPermission} denies permission, then a
* {@code SecurityException} will be thrown.
*
* <p>If the specified driver is not found in the list of registered drivers, then no action is
* taken. If the driver was found, it will be removed from the list of registered drivers.
*
* <p>If a {@code DriverAction} instance was specified when the JDBC driver was registered, its
* deregister method will be called prior to the driver being removed from the list of registered
* drivers.
*
* @param driver the JDBC Driver to remove
* @exception SQLException if a database access error occurs
* @throws SecurityException if a security manager exists and its {@code checkPermission} method
* denies permission to deregister a driver.
* @see SecurityManager#checkPermission
*/
@CallerSensitive
public static synchronized void deregisterDriver(Driver driver) throws SQLException {
if (driver == null) {
return;
}
SecurityManager sec = System.getSecurityManager();
if (sec != null) {
sec.checkPermission(DEREGISTER_DRIVER_PERMISSION);
}
println("DriverManager.deregisterDriver: " + driver);
DriverInfo aDriver = new DriverInfo(driver, null);
if (registeredDrivers.contains(aDriver)) {
if (isDriverAllowed(driver, Reflection.getCallerClass())) {
DriverInfo di = registeredDrivers.get(registeredDrivers.indexOf(aDriver));
// If a DriverAction was specified, Call it to notify the
// driver that it has been deregistered
if (di.action() != null) {
di.action().deregister();
}
registeredDrivers.remove(aDriver);
} else {
// If the caller does not have permission to load the driver then
// throw a SecurityException.
throw new SecurityException();
}
} else {
println(" couldn't find driver to unload");
}
}
@Override
public int indexOf(final Object o, final int index) {
return copyOnWriteArrayList.indexOf(o, index);
}
/**
* Gets the position of the provided processor in the processor queue.
*
* @param processor The processor.
* @return The processor's index.
*/
public synchronized int indexOf(IAudioProcessor processor) {
return processors.indexOf(processor);
}
/**
* Adds a processor to the internal processor queue.
*
* @param processor The processor to add.
* @return The index of the processor.
*/
public synchronized int add(IAudioProcessor processor) {
processors.add(processor);
buildFinalProcessor();
return processors.indexOf(processor);
}