cn.com.pism.ezasse.util

接口 Callback<P,R>

类型参数:

P - The type of the argument provided to the call method.

R - The type of the return type of the call method.

函数接口:

这是一个函数接口, 因此可用作 lambda 表达式或方法引用的赋值目标。

@FunctionalInterface
public interface Callback<P,R>

The Callback interface is designed to allow for a common, reusable interface to exist for defining APIs that requires a call back in certain situations.

Callback is defined with two generic parameters: the first parameter specifies the type of the object passed in to the call method, with the second parameter specifying the return type of the method.

从以下版本开始:

JavaFX 2.0

作者:

java

方法概要

限定符和类型	方法和说明
R	call(P param) The call method is called when required, and is given a single argument of type P, with a requirement that an object of type R is returned.

方法详细资料

call

R call(P param)

The call method is called when required, and is given a single argument of type P, with a requirement that an object of type R is returned.

参数:

param - The single argument upon which the returned value should be determined.

返回:

An object of type R that may be determined based on the provided parameter value.