LoadBalanceExceptionChecker
Date: 2018-05-06

com.mysql.jdbc

## Interface LoadBalanceExceptionChecker

- All Superinterfaces:
    Extension
  All Known Implementing Classes:
    NdbLoadBalanceExceptionChecker, StandardLoadBalanceExceptionChecker

      public interface LoadBalanceExceptionChecker
      extends Extension

- - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `shouldExceptionTriggerFailover(java.sql.SQLException ex)` Invoked to determine whether or a given SQLException should trigger a failover in a load-balanced deployment.

    - ### Methods inherited from interface com.mysql.jdbc.Extension

      `destroy, init`

- - ### Method Detail

    - #### shouldExceptionTriggerFailover

          boolean shouldExceptionTriggerFailover(java.sql.SQLException ex)

      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.
      Parameters:
        `ex` -
      Returns:
        true if the exception should trigger failover.