org.mariadb.jdbc.internal.mysql

Class FailoverProxy

java.lang.Object

org.mariadb.jdbc.internal.mysql.FailoverProxy

All Implemented Interfaces:

InvocationHandler

public class FailoverProxy
extends Object
implements InvocationHandler

Field Summary

Fields

Modifier and Type	Field and Description
ReentrantReadWriteLock	lock
static String	METHOD_CLOSED_EXPLICIT
static String	METHOD_EXECUTE_QUERY
static String	METHOD_GET_OPTIONS
static String	METHOD_GET_PROXY
static String	METHOD_IS_CLOSED
static String	METHOD_IS_EXPLICIT_CLOSED
static String	METHOD_IS_READ_ONLY
static String	METHOD_SET_READ_ONLY

Constructor Summary

Constructors

Constructor and Description
FailoverProxy(Listener listener, ReentrantReadWriteLock lock)

Method Summary

Modifier and Type	Method and Description
Listener	getListener()
boolean	hasToHandleFailover(QueryException e) Check if this Sqlerror is a connection exception. if that's the case, must be handle by failover error codes : 08000 : connection exception 08001 : SQL client unable to establish SQL connection 08002 : connection name in use 08003 : connection does not exist 08004 : SQL server rejected SQL connection 08006 : connection failure 08007 : transaction resolution unknown 70100 : connection was killed
Object	invoke(Object proxy, Method method, Object[] args) proxy that catch Protocol call, to permit to catch errors and handle failover when multiple hosts
void	reconnect()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

METHOD_IS_EXPLICIT_CLOSED

public static final String METHOD_IS_EXPLICIT_CLOSED

See Also:

Constant Field Values

METHOD_GET_OPTIONS

public static final String METHOD_GET_OPTIONS

See Also:

Constant Field Values

METHOD_GET_PROXY

public static final String METHOD_GET_PROXY

See Also:

Constant Field Values

METHOD_EXECUTE_QUERY

public static final String METHOD_EXECUTE_QUERY

See Also:

Constant Field Values

METHOD_SET_READ_ONLY

public static final String METHOD_SET_READ_ONLY

See Also:

Constant Field Values

METHOD_IS_READ_ONLY

public static final String METHOD_IS_READ_ONLY

See Also:

Constant Field Values

METHOD_CLOSED_EXPLICIT

public static final String METHOD_CLOSED_EXPLICIT

See Also:

Constant Field Values

METHOD_IS_CLOSED

public static final String METHOD_IS_CLOSED

See Also:

Constant Field Values

lock

public final ReentrantReadWriteLock lock

Constructor Detail

FailoverProxy

public FailoverProxy(Listener listener,
                     ReentrantReadWriteLock lock)
              throws QueryException,
                     SQLException

Throws:

QueryException

SQLException

Method Detail

invoke

public Object invoke(Object proxy,
                     Method method,
                     Object[] args)
              throws Throwable

proxy that catch Protocol call, to permit to catch errors and handle failover when multiple hosts

Specified by:

invoke in interface InvocationHandler

Parameters:

proxy - the current protocol

method - the called method on the protocol

args - methods parameters

Returns:

protocol method result

Throws:

Throwable - the method throwed error if not catch by failover

hasToHandleFailover

public boolean hasToHandleFailover(QueryException e)

Check if this Sqlerror is a connection exception. if that's the case, must be handle by failover error codes : 08000 : connection exception 08001 : SQL client unable to establish SQL connection 08002 : connection name in use 08003 : connection does not exist 08004 : SQL server rejected SQL connection 08006 : connection failure 08007 : transaction resolution unknown 70100 : connection was killed

Parameters:

e - the Exception

Returns:

true if there has been a connection error that must be handled by failover

reconnect

public void reconnect()
               throws SQLException

Throws:

SQLException

getListener

public Listener getListener()