com.mysql.cj.callback

Interface MysqlCallbackHandler

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface MysqlCallbackHandler

A functional interface for implementing callback handlers. The single method handle(MysqlCallback) is called by the classes where the callback handler is passed when they need to share data with the caller. The kind of data to exchange depends on the implementations of MysqlCallback they choose to use.

Method Summary

Modifier and Type	Method and Description
void	handle(MysqlCallback cb) Exchanges information between the caller of this method and the owner of the MysqlCallbackHandler instance.

Method Detail

handle

void handle(MysqlCallback cb)

Exchanges information between the caller of this method and the owner of the MysqlCallbackHandler instance. The method can be called multiple times with different callback implementations to exchange different types of information. A typical MysqlCallbackHandler implementation looks like:

 private MysqlCallbackHandler callbackHandler = (cb) -> {
     if (cb instanceof UsernameCallback) {
         this.username = ((UsernameCallback) cb).getUsername();
     }
 };
 

Parameters:

cb - the MysqlCallback to process