Module powerunit.exceptions

Package ch.powerunit.extensions.exceptions

Interface DoubleToIntFunctionWithException<E extends Exception>

Type Parameters:

E - the type of the potential exception of the function

All Superinterfaces:

ExceptionHandlerSupport<F,F>, PrimitiveReturnExceptionHandlerSupport<DoubleToIntFunction>

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 DoubleToIntFunctionWithException<E extends Exception>
extends PrimitiveReturnExceptionHandlerSupport<DoubleToIntFunction>

Represents a function that accepts a double-valued argument, may throw exception and produces an int-valued result. This is the double-to-int primitive specialization for FunctionWithException.

General contract

• int applyAsInt(double value) throws E - The functional method.
• uncheck - Return a DoubleToIntFunction
• lift - Return a DoubleToIntFunction
• ignore - Return a DoubleToIntFunction

See Also:

DoubleToIntFunction

Method Summary

Modifier and Type	Method	Description
int	applyAsInt(double value)	Applies this function to the given argument.
static <E extends Exception> DoubleToIntFunctionWithException<E>	failing(Supplier<E> exceptionBuilder)	Returns a function that always throw exception.
static <E extends Exception> DoubleToIntFunction	ignored(DoubleToIntFunctionWithException<E> function)	Converts a DoubleToIntFunctionWithException to a lifted DoubleToIntFunction returning 0 in case of exception.
static <E extends Exception> DoubleToIntFunction	lifted(DoubleToIntFunctionWithException<E> function)	Converts a DoubleToIntFunctionWithException to a lifted DoubleToIntFunction returning 0 in case of exception.
static <E extends Exception> DoubleToIntFunction	unchecked(DoubleToIntFunctionWithException<E> function)	Converts a DoubleToIntFunctionWithException to a DoubleToIntFunction that wraps exception to RuntimeException.
static <E extends Exception> DoubleToIntFunction	unchecked(DoubleToIntFunctionWithException<E> function, Function<Exception,RuntimeException> exceptionMapper)	Converts a DoubleToIntFunctionWithException to a DoubleToIntFunction that wraps exception to RuntimeException by using the provided mapping function.
default DoubleToIntFunction	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

applyAsInt

int applyAsInt(double value)
        throws E extends Exception

Applies this function to the given argument.

Parameters:

value - the function argument

Returns:

the function result

Throws:

E - any exception

E extends Exception

See Also:

DoubleToIntFunction.applyAsInt(double)

uncheckOrIgnore

default DoubleToIntFunction uncheckOrIgnore(boolean uncheck)

Description copied from interface: PrimitiveReturnExceptionHandlerSupport

Used internally to implements the ignore or uncheck operation.

Specified by:

uncheckOrIgnore in interface PrimitiveReturnExceptionHandlerSupport<E extends Exception>

Parameters:

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

Returns:

the function

failing

static <E extends Exception> DoubleToIntFunctionWithException<E> failing(Supplier<E> exceptionBuilder)

Returns a function that always throw exception.

Type Parameters:

E - the type of the exception

Parameters:

exceptionBuilder - the supplier to create the exception

Returns:

a function that always throw exception

unchecked

static <E extends Exception> DoubleToIntFunction unchecked(DoubleToIntFunctionWithException<E> function)

Converts a DoubleToIntFunctionWithException to a DoubleToIntFunction that wraps exception to RuntimeException.

Type Parameters:

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(DoubleToIntFunctionWithException, Function)

unchecked

static <E extends Exception> DoubleToIntFunction unchecked(DoubleToIntFunctionWithException<E> function,
                                                           Function<Exception,RuntimeException> exceptionMapper)

Converts a DoubleToIntFunctionWithException to a DoubleToIntFunction that wraps exception to RuntimeException by using the provided mapping function.

Type Parameters:

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 exception

Throws:

NullPointerException - if function or exceptionMapper is null

See Also:

PrimitiveReturnExceptionHandlerSupport.uncheck(), unchecked(DoubleToIntFunctionWithException)

lifted

static <E extends Exception> DoubleToIntFunction lifted(DoubleToIntFunctionWithException<E> function)

Converts a DoubleToIntFunctionWithException to a lifted DoubleToIntFunction returning 0 in case of exception.

Type Parameters:

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 <E extends Exception> DoubleToIntFunction ignored(DoubleToIntFunctionWithException<E> function)

Converts a DoubleToIntFunctionWithException to a lifted DoubleToIntFunction returning 0 in case of exception.

Type Parameters:

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()