cn.gongler.util.function

接口 ExceptionFunction<T,R>

类型参数:

T - T

R - result

所有已知子接口:

ExceptionUnaryOperator<T>

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 ExceptionFunction<T,R>

作者:

gongler

方法概要

限定符和类型	方法和说明
default <V> ExceptionFunction<T,V>	andThen(ExceptionFunction<? super R,? extends V> after) Returns a composed function that first applies this function to its input, and then applies the after function to the result.
R	apply(T t) Applies this function to the given argument.
default R	applyWithCatchAny(T t)
default R	applyWithCatchAny(T t, R defaultVal)
default R	applyWithThrowAny(T t)
default <V> ExceptionFunction<V,R>	compose(ExceptionFunction<? super V,? extends T> before) Returns a composed function that first applies the before function to its input, and then applies this function to the result.
static <T> ExceptionFunction<T,T>	identity() Returns a function that always returns its input argument.
default java.util.function.Function<T,R>	toFunction()

方法详细资料

apply

R apply(T t)
 throws Exception

Applies this function to the given argument.

参数:

t - the function argument

返回:

the function result

抛出:

Exception - Exception

applyWithCatchAny

default R applyWithCatchAny(T t)

applyWithCatchAny

default R applyWithCatchAny(T t,
                            R defaultVal)

applyWithThrowAny

default R applyWithThrowAny(T t)

compose

default <V> ExceptionFunction<V,R> compose(ExceptionFunction<? super V,? extends T> before)

Returns a composed function that first applies the before function to its input, and then applies this function to the result. If evaluation of either function throws an exception, it is relayed to the caller of the composed function.

类型参数:

V - the type of input to the before function, and to the composed function

参数:

before - the function to apply before this function is applied

返回:

a composed function that first applies the before function and then applies this function

抛出:

NullPointerException - if before is null

andThen

default <V> ExceptionFunction<T,V> andThen(ExceptionFunction<? super R,? extends V> after)

Returns a composed function that first applies this function to its input, and then applies the after function to the result. If evaluation of either function throws an exception, it is relayed to the caller of the composed function.

类型参数:

V - the type of output of the after function, and of the composed function

参数:

after - the function to apply after this function is applied

返回:

a composed function that first applies this function and then applies the after function

抛出:

NullPointerException - if after is null

identity

static <T> ExceptionFunction<T,T> identity()

Returns a function that always returns its input argument.

类型参数:

T - the type of the input and output objects to the function

返回:

a function that always returns its input argument

toFunction

default java.util.function.Function<T,R> toFunction()