org.apache.drill.common.util.function

Interface CheckedSupplier<T,E extends Exception>

Type Parameters:

T - The return type of the lambda function.

E - The type of exception thrown by the lambda function.

All Superinterfaces:

Supplier<T>

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 CheckedSupplier<T,E extends Exception>
extends Supplier<T>

The java standard library does not provide a lambda function interface for functions that take no arguments, but that throw an exception. So, we have to define our own here.

Method Summary

Modifier and Type	Method and Description
default T	get()
T	getAndThrow() Gets a result.

Method Detail

get

default T get()

Specified by:

get in interface Supplier<T>

getAndThrow

T getAndThrow()
       throws E extends Exception

Gets a result.

Returns:

a result

Throws:

E - exception in case of errors

E extends Exception