Module powerunit.exceptions

Package ch.powerunit.extensions.exceptions

Interface ToLongBiFunctionWithException<T,U,E extends Exception>

Type Parameters:

T - the type of the first argument to the function

U - the type of the second argument to the function

E - the type of the potential exception of the function

All Superinterfaces:

ExceptionHandlerSupport<T,U>, PrimitiveReturnExceptionHandlerSupport<ToLongBiFunction<T,U>>

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 ToLongBiFunctionWithException<T,U,E extends Exception>
extends PrimitiveReturnExceptionHandlerSupport<ToLongBiFunction<T,U>>

Represents a function that accepts two arguments, may throw exception and produces a long-valued result. This is the long-producing primitive specialization for BiFunctionWithException.

General contract

• long applyAsLong(T t, U u) throws E - The functional method.
• uncheck - Return a ToLongBiFunction<T, U>
• lift - Return a ToLongBiFunction<T, U>
• ignore - Return a ToLongBiFunction<T, U>

See Also:

ToLongBiFunction

Method Summary

Modifier and Type	Method	Description
long	applyAsLong(T t, U u)	Applies this function to the given arguments.
static <T,U,E extends Exception> ToLongBiFunctionWithException<T,U,E>	failing(Supplier<E> exceptionBuilder)	Returns a function that always throw exception.
static <T,U,E extends Exception> ToLongBiFunction<T,U>	ignored(ToLongBiFunctionWithException<T,U,E> function)	Converts a ToLongBiFunctionWithException to a lifted ToLongBiFunction returning 0 in case of exception.
static <T,U,E extends Exception> ToLongBiFunction<T,U>	lifted(ToLongBiFunctionWithException<T,U,E> function)	Converts a ToLongBiFunctionWithException to a lifted ToLongBiFunction returning 0 in case of exception.
static <T,U,E extends Exception> ToLongBiFunction<T,U>	unchecked(ToLongBiFunctionWithException<T,U,E> function)	Converts a ToLongBiFunctionWithException to a ToLongBiFunction that wraps exception to RuntimeException.
static <T,U,E extends Exception> ToLongBiFunction<T,U>	unchecked(ToLongBiFunctionWithException<T,U,E> function, Function<Exception,RuntimeException> exceptionMapper)	Converts a ToLongBiFunctionWithException to a ToLongBiFunction that wraps exception to RuntimeException by using the provided mapping function.
default ToLongBiFunction<T,U>	uncheckOrIgnore(boolean uncheck)	Used internally to implements the ignore or uncheck operation.

Methods inherited from interface ch.powerunit.extensions.exceptions.ExceptionHandlerSupport

exceptionMapper, exceptionMapperFor

Methods inherited from interface ch.powerunit.extensions.exceptions.PrimitiveReturnExceptionHandlerSupport

handleException, ignore, lift, uncheck

Method Detail

applyAsLong

long applyAsLong(T t,
                 U u)
          throws E extends Exception

Applies this function to the given arguments.

Parameters:

t - the first function argument

u - the second function argument

Returns:

the function result

Throws:

E - any exception

E extends Exception

See Also:

ToLongBiFunction.applyAsLong(Object, Object)

uncheckOrIgnore

default ToLongBiFunction<T,U> uncheckOrIgnore(boolean uncheck)

Description copied from interface: PrimitiveReturnExceptionHandlerSupport

Used internally to implements the ignore or uncheck operation.

Specified by:

uncheckOrIgnore in interface PrimitiveReturnExceptionHandlerSupport<T>

Parameters:

uncheck - create unchecked version of the function when true, else ignored version.

Returns:

the function

failing

static <T,U,E extends Exception> ToLongBiFunctionWithException<T,U,E> failing(Supplier<E> exceptionBuilder)

Returns a function that always throw exception.

Type Parameters:

T - the type of the first argument to the function

U - the type of the second argument to the function

E - the type of the exception

Parameters:

exceptionBuilder - the supplier to create the exception

Returns:

a function that always throw exception

unchecked

static <T,U,E extends Exception> ToLongBiFunction<T,U> unchecked(ToLongBiFunctionWithException<T,U,E> function)

Converts a ToLongBiFunctionWithException to a ToLongBiFunction that wraps exception to RuntimeException.

Type Parameters:

T - the type of the first argument to the function

U - the type of the second argument to the function

E - the type of the potential exception

Parameters:

function - to be unchecked

Returns:

the unchecked function

Throws:

NullPointerException - if function is null

See Also:

PrimitiveReturnExceptionHandlerSupport.uncheck(), unchecked(ToLongBiFunctionWithException, Function)

unchecked

static <T,U,E extends Exception> ToLongBiFunction<T,U> unchecked(ToLongBiFunctionWithException<T,U,E> function,
                                                                 Function<Exception,RuntimeException> exceptionMapper)

Converts a ToLongBiFunctionWithException to a ToLongBiFunction that wraps exception to RuntimeException by using the provided mapping function.

Type Parameters:

T - the type of the first argument to the function

U - the type of the second argument to the function

E - the type of the potential exception

Parameters:

function - the be unchecked

exceptionMapper - a function to convert the exception to the runtime exception.

Returns:

the unchecked function

Throws:

NullPointerException - if function or exceptionMapper is null

See Also:

PrimitiveReturnExceptionHandlerSupport.uncheck(), unchecked(ToLongBiFunctionWithException)

lifted

static <T,U,E extends Exception> ToLongBiFunction<T,U> lifted(ToLongBiFunctionWithException<T,U,E> function)

Converts a ToLongBiFunctionWithException to a lifted ToLongBiFunction returning 0 in case of exception.

Type Parameters:

T - the type of the first argument to the function

U - the type of the second argument to the function

E - the type of the potential exception

Parameters:

function - to be lifted

Returns:

the lifted function

Throws:

NullPointerException - if function is null

See Also:

PrimitiveReturnExceptionHandlerSupport.lift()

ignored

static <T,U,E extends Exception> ToLongBiFunction<T,U> ignored(ToLongBiFunctionWithException<T,U,E> function)

Converts a ToLongBiFunctionWithException to a lifted ToLongBiFunction returning 0 in case of exception.

Type Parameters:

T - the type of the first argument to the function

U - the type of the second argument to the function

E - the type of the potential exception

Parameters:

function - to be lifted

Returns:

the lifted function

Throws:

NullPointerException - if function is null

See Also:

PrimitiveReturnExceptionHandlerSupport.ignore()