ru.ilb.jfunction.exception

Class ExceptionalFunctionUtils

java.lang.Object

ru.ilb.jfunction.exception.ExceptionalFunctionUtils

public final class ExceptionalFunctionUtils
extends Object

Utility class for functional extensions

Author:

Peter Kurfer

Method Summary

Modifier and Type	Method and Description
static <T,R extends AutoCloseable> T	tryWithResources(ExceptionalResourceSupplier<R> resourceSupplier, ExceptionalFunction<R,T,Exception> consumer) Functional try-with-resources with default exception translator function
static <T,R extends AutoCloseable> T	tryWithResources(ExceptionalResourceSupplier<R> resourceSupplier, ExceptionalFunction<R,T,Exception> consumer, RuntimeExceptionFunction runtimeExceptionFunction) Functional try-with-resources with exception translator function
static <T,R extends AutoCloseable> T	tryWithResources(ExceptionalResourceSupplier<R> resourceSupplier, ExceptionalFunction<R,T,Exception> consumer, Supplier<T> fallbackSupplier) Functional try-with-resources

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

tryWithResources

public static <T,R extends AutoCloseable> T tryWithResources(ExceptionalResourceSupplier<R> resourceSupplier,
                                                             ExceptionalFunction<R,T,Exception> consumer,
                                                             Supplier<T> fallbackSupplier)

Functional try-with-resources

Type Parameters:

T - Type of the result

R - Type of the AutoCloseable resource

Parameters:

resourceSupplier - supplier for the AutoCloseable resource

consumer - function that consumes the resource and returns a value

fallbackSupplier - supplier for a fallback value

Returns:

instance of T supplied by the consumer or fallback value if exception occurred

tryWithResources

public static <T,R extends AutoCloseable> T tryWithResources(ExceptionalResourceSupplier<R> resourceSupplier,
                                                             ExceptionalFunction<R,T,Exception> consumer,
                                                             RuntimeExceptionFunction runtimeExceptionFunction)

Functional try-with-resources with exception translator function

Type Parameters:

T - Type of the result

R - Type of the AutoCloseable resource

Parameters:

resourceSupplier - supplier for the AutoCloseable resource

consumer - function that consumes the resource and returns a value

runtimeExceptionFunction - function that converts Exception to RuntimeException

Returns:

instance of T supplied by the consumer

tryWithResources

public static <T,R extends AutoCloseable> T tryWithResources(ExceptionalResourceSupplier<R> resourceSupplier,
                                                             ExceptionalFunction<R,T,Exception> consumer)

Functional try-with-resources with default exception translator function

Type Parameters:

T - Type of the result

R - Type of the AutoCloseable resource

Parameters:

resourceSupplier - supplier for the AutoCloseable resource

consumer - function that consumes the resource and returns a value

Returns:

instance of T supplied by the consumer