Package dev.trinkets.util.function

Interface SupplierExt<T,E extends java.lang.Throwable>

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@PrimaryRequirement(updates=java.util.function.Supplier.class)
@FunctionalInterface
public interface SupplierExt<T,E extends java.lang.Throwable>

Changes for Supplier

Why:
1. If a Supplier lambda throws a checked exceptions, the developer has to messily wrap it in a RuntimeException.
2. If Supplier.get throws a RuntimeException, the compiler will not warn the developer.
3. This class provides type-safe exceptions which is not currently possible with java.util.function classes.

To eliminate the need for this class:
1. Java should support default values for generic parameters.
2. Modify java.util.function.Supplier<T> to Supplier<T, E extends Throwable = Throwable>

Risk:
1. Maintains source compatibility because the E parameter can be omitted.
2. Maintains binary compatibility because generic types are erased.
3. Impact on code using Reflection APIs should be minimal.

Method Summary

Modifier and Type	Method	Description
T	get()

Method Detail

get

@Update
T get()
throws E extends java.lang.Throwable

Throws:

E extends java.lang.Throwable