io.r2dbc.proxy.callback

Interface CallbackHandler

All Known Implementing Classes:

BatchCallbackHandler, ConnectionCallbackHandler, ConnectionFactoryCallbackHandler, ResultCallbackHandler, RowCallbackHandler, RowSegmentCallbackHandler, StatementCallbackHandler

public interface CallbackHandler

Callback logic for proxy invocation. The logic is separated from proxy handler to implementation of this interface in order to be reused in different proxy mechanism (JDK dynamic proxy, cglib, etc).

Author:

Tadaya Tsuyukubo

Method Summary

Modifier and Type	Method and Description
Object	invoke(Object proxy, Method method, Object[] args) When proxy is invoked, actual implementation of the proxy handler delegates the invocation to this method.

Method Detail

invoke

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

When proxy is invoked, actual implementation of the proxy handler delegates the invocation to this method.

Parameters:

proxy - the proxy instance that the method was invoked on

method - the method that has invoked on the proxy instance

args - an array of objects that has passed to the method invocation. this can be null when method is invoked with no argument.

Returns:

result returned from the method invocation on the proxy instance. (can be null.)

Throws:

Throwable - the exception thrown from the method invocation on the proxy instance.

IllegalArgumentException - if proxy is null

IllegalArgumentException - if method is null