org.wso2.carbon.utils

Class LambdaExceptionUtils

java.lang.Object

org.wso2.carbon.utils.LambdaExceptionUtils

public final class LambdaExceptionUtils
extends Object

A Utility which provides a way to throw checked exceptions from the lambda expressions.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	LambdaExceptionUtils.BiConsumerWithExceptions<T,U,E extends Exception> Represents a BiConsumer interface which can throw exceptions.
static interface	LambdaExceptionUtils.ConsumerWithExceptions<T,E extends Exception> Represents a Consumer interface which can throw exceptions.
static interface	LambdaExceptionUtils.FunctionWithExceptions<T,R,E extends Exception> Represents a Function interface which can throw exceptions.
static interface	LambdaExceptionUtils.RunnableWithExceptions<E extends Exception> Represents a Runnable interface which can throw exceptions.
static interface	LambdaExceptionUtils.SupplierWithExceptions<T,E extends Exception> Represents a Supplier interface which can throw exceptions.

Constructor Summary

Constructors

Constructor and Description
LambdaExceptionUtils()

Method Summary

Modifier and Type	Method and Description
static <T,U,E extends Exception> BiConsumer<T,U>	rethrowBiConsumer(LambdaExceptionUtils.BiConsumerWithExceptions<T,U,E> biConsumer) This method allows a BiConsumer which throws exceptions to be used in places which expects a BiConsumer.
static <T,E extends Exception> Consumer<T>	rethrowConsumer(LambdaExceptionUtils.ConsumerWithExceptions<T,E> consumer) This method allows a Consumer which throws exceptions to be used in places which expects a Consumer.
static <T,R,E extends Exception> Function<T,R>	rethrowFunction(LambdaExceptionUtils.FunctionWithExceptions<T,R,E> function) This method allows a Function which throws exceptions to be used in places which expects a Function.
static <T,E extends Exception> Supplier<T>	rethrowSupplier(LambdaExceptionUtils.SupplierWithExceptions<T,E> function) This method allows a Supplier which throws exceptions to be used in places which expects a Supplier.

Methods inherited from class java.lang.Object

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

Constructor Detail

LambdaExceptionUtils

public LambdaExceptionUtils()

Method Detail

rethrowConsumer

public static <T,E extends Exception> Consumer<T> rethrowConsumer(LambdaExceptionUtils.ConsumerWithExceptions<T,E> consumer)

This method allows a Consumer which throws exceptions to be used in places which expects a Consumer.

Type Parameters:

T - the type of the input to the function

E - the type of Exception

Parameters:

consumer - instances of the ConsumerWithExceptions functional interface

Returns:

an instance of the Consumer

rethrowBiConsumer

public static <T,U,E extends Exception> BiConsumer<T,U> rethrowBiConsumer(LambdaExceptionUtils.BiConsumerWithExceptions<T,U,E> biConsumer)

This method allows a BiConsumer which throws exceptions to be used in places which expects a BiConsumer.

Type Parameters:

T - the type of the input to the function

U - the type of the input to the function

E - the type of Exception

Parameters:

biConsumer - instances of the BiConsumerWithExceptions functional interface

Returns:

an instance of the BiConsumer

rethrowFunction

public static <T,R,E extends Exception> Function<T,R> rethrowFunction(LambdaExceptionUtils.FunctionWithExceptions<T,R,E> function)

This method allows a Function which throws exceptions to be used in places which expects a Function.

Type Parameters:

T - Any Object.

R - Any Object

E - Any Exception.

Parameters:

function - Function to apply for given arguments.

Returns:

Any Object that result from the function passed.

rethrowSupplier

public static <T,E extends Exception> Supplier<T> rethrowSupplier(LambdaExceptionUtils.SupplierWithExceptions<T,E> function)

This method allows a Supplier which throws exceptions to be used in places which expects a Supplier.

Type Parameters:

T - Any Object.

E - Any Exception.

Parameters:

function - Function to apply for given arguments.

Returns:

Supplier of the results.