at.chrl.callbacks

Interface Callback<T>

All Known Implementing Classes:

CheckCallback

public interface Callback<T>

Basic callback class.
Each enhanced method will call "beforeCall" and "afterCall" methods

Author:

SoulKeeper

Method Summary

Modifier and Type	Method and Description
default CallbackResult	afterCall(T obj, Object[] args, Object methodResult) Method that is called after actual method call.
default CallbackResult	beforeCall(T obj, Object[] args) Method that is called before actual method is invoked.
default Class<? extends Callback<?>>	getBaseClass() Returns base class that will be used as callback identificator.

Method Detail

beforeCall

default CallbackResult beforeCall(T obj,
                                  Object[] args)

Method that is called before actual method is invoked.

Callback should return one of the following results:

• CallbackResult.newContinue()
• CallbackResult.newCallbackBlocker()
• CallbackResult.newFullBlocker(Object)

if result is not CallbackResult.newFullBlocker(Object) then method will be executed normally. In other case CallbackResult.getResult() will be returned.

Parameters:

obj - on whom method should be invoked

args - method args

Returns:

see CallbackResult

afterCall

default CallbackResult afterCall(T obj,
                                 Object[] args,
                                 Object methodResult)

Method that is called after actual method call.

Callback should return one of the following results:

• CallbackResult.newContinue()
• CallbackResult.newCallbackBlocker()
• CallbackResult.newFullBlocker(Object)

if result is not CallbackResult.newFullBlocker(Object) then mehodResult will return unmodified. In other case CallbackResult.getResult() will be returned.

Parameters:

obj - on whom method was called

args - method args

methodResult - result of method invocation

Returns:

see CallbackResult

getBaseClass

default Class<? extends Callback<?>> getBaseClass()

Returns base class that will be used as callback identificator.
ObjectCallback.value() should contain class that will be invoked

Returns:

base class of callback