Module powerunit.exceptions

Package ch.powerunit.extensions.exceptions

Interface DoubleBinaryOperatorWithException<E extends Exception>

Type Parameters:

E - the type of the potential exception of the function

All Superinterfaces:

ExceptionHandlerSupport<F,F>, PrimitiveReturnExceptionHandlerSupport<DoubleBinaryOperator>

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 DoubleBinaryOperatorWithException<E extends Exception>
extends PrimitiveReturnExceptionHandlerSupport<DoubleBinaryOperator>

Represents an operation upon two double-valued operands, may throw exception and producing a double-valued result. This is the primitive type specialization of BinaryOperatorWithException for double.

General contract

• double applyAsDouble(double left, double right) throws E - The functional method.
• uncheck - Return a DoubleBinaryOperator
• lift - Return a DoubleBinaryOperator
• ignore - Return a DoubleBinaryOperator

See Also:

DoubleBinaryOperator

Method Summary

Modifier and Type	Method	Description
double	applyAsDouble(double left, double right)	Applies this operator to the given operands.
static <E extends Exception> DoubleBinaryOperatorWithException<E>	failing(Supplier<E> exceptionBuilder)	Returns a function that always throw exception.
static <E extends Exception> DoubleBinaryOperator	ignored(DoubleBinaryOperatorWithException<E> function)	Converts a DoubleBinaryOperatorWithException to a lifted DoubleBinaryOperator with 0 as return value in case of exception.
static <E extends Exception> DoubleBinaryOperator	lifted(DoubleBinaryOperatorWithException<E> function)	Converts a DoubleBinaryOperatorWithException to a lifted DoubleBinaryOperator with 0 as return value in case of exception.
static <E extends Exception> DoubleBinaryOperator	unchecked(DoubleBinaryOperatorWithException<E> function)	Converts a DoubleBinaryOperatorException to a DoubleBinaryOperator that wraps exception to RuntimeException.
static <E extends Exception> DoubleBinaryOperator	unchecked(DoubleBinaryOperatorWithException<E> function, Function<Exception,RuntimeException> exceptionMapper)	Converts a DoubleBinaryOperatorWithException to a DoubleBinaryOperator that wraps exception to RuntimeException by using the provided mapping function.
default DoubleBinaryOperator	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

applyAsDouble

double applyAsDouble(double left,
                     double right)
              throws E extends Exception

Applies this operator to the given operands.

Parameters:

left - the first operand

right - the second operand

Returns:

the operator result

Throws:

E - any exception

E extends Exception

See Also:

DoubleBinaryOperator.applyAsDouble(double, double)

uncheckOrIgnore

default DoubleBinaryOperator 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> DoubleBinaryOperatorWithException<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> DoubleBinaryOperator unchecked(DoubleBinaryOperatorWithException<E> function)

Converts a DoubleBinaryOperatorException to a DoubleBinaryOperator 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(DoubleBinaryOperatorWithException, Function)

unchecked

static <E extends Exception> DoubleBinaryOperator unchecked(DoubleBinaryOperatorWithException<E> function,
                                                            Function<Exception,RuntimeException> exceptionMapper)

Converts a DoubleBinaryOperatorWithException to a DoubleBinaryOperator 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 function

Throws:

NullPointerException - if function or exceptionMapper is null

See Also:

PrimitiveReturnExceptionHandlerSupport.uncheck(), unchecked(DoubleBinaryOperatorWithException)

lifted

static <E extends Exception> DoubleBinaryOperator lifted(DoubleBinaryOperatorWithException<E> function)

Converts a DoubleBinaryOperatorWithException to a lifted DoubleBinaryOperator with 0 as return value 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> DoubleBinaryOperator ignored(DoubleBinaryOperatorWithException<E> function)

Converts a DoubleBinaryOperatorWithException to a lifted DoubleBinaryOperator with 0 as return value 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()