程序包 com.mysql.cj.jdbc.ha

类 StandardLoadBalanceExceptionChecker

java.lang.Object

com.mysql.cj.jdbc.ha.StandardLoadBalanceExceptionChecker

所有已实现的接口:

LoadBalanceExceptionChecker

直接已知子类:

NdbLoadBalanceExceptionChecker

public class StandardLoadBalanceExceptionChecker
extends Object
implements LoadBalanceExceptionChecker

构造器概要

构造器

构造器	说明
StandardLoadBalanceExceptionChecker()

方法概要

修饰符和类型	方法	说明
void	destroy()	Called by the driver when this extension should release any resources it is holding and cleanup internally before the connection is closed.
void	init(Properties props)	Called once per connection that wants to use the extension The properties are the same ones passed in in the URL or arguments to Driver.connect() or DriverManager.getConnection().
boolean	shouldExceptionTriggerFailover(Throwable ex)	Invoked to determine whether or a given SQLException should trigger a failover in a load-balanced deployment.

从类继承的方法 java.lang.Object

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

构造器详细资料

StandardLoadBalanceExceptionChecker

public StandardLoadBalanceExceptionChecker()

方法详细资料

shouldExceptionTriggerFailover

public boolean shouldExceptionTriggerFailover(Throwable ex)

从接口复制的说明: LoadBalanceExceptionChecker

Invoked to determine whether or a given SQLException should trigger a failover in a load-balanced deployment. The driver will not pass in a Connection instance when calling init(), but it will pass in the Properties, otherwise it acts like a normal Extension. One instance of a handler *per* JDBC connection instance will be created. If you need singleton-like behavior, you're on your own to provide it.

指定者:

shouldExceptionTriggerFailover 在接口中 LoadBalanceExceptionChecker

参数:

ex - exception

返回:

true if the exception should trigger failover.

destroy

public void destroy()

从接口复制的说明: LoadBalanceExceptionChecker

Called by the driver when this extension should release any resources it is holding and cleanup internally before the connection is closed.

指定者:

destroy 在接口中 LoadBalanceExceptionChecker

init

public void init(Properties props)

从接口复制的说明: LoadBalanceExceptionChecker

Called once per connection that wants to use the extension The properties are the same ones passed in in the URL or arguments to Driver.connect() or DriverManager.getConnection().

指定者:

init 在接口中 LoadBalanceExceptionChecker

参数:

props - configuration values as passed to the connection. Note that in order to support javax.sql.DataSources, configuration properties specific to an interceptor must be passed via setURL() on the DataSource. Extension properties are not exposed via accessor/mutator methods on DataSources.