org.organicdesign.fp.function

Interface Fn0<U>

All Superinterfaces:

Callable<U>, Supplier<U>

All Known Implementing Classes:

LazyRef

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 Fn0<U>
extends Supplier<U>, Callable<U>

This is like Java 8's java.util.function.Supplier, but retrofitted to turn checked exceptions into unchecked ones. It's also called a thunk when used to delay evaluation.

Method Summary

Modifier and Type	Method and Description
default U	apply() The class that takes a consumer as an argument uses this convenience method so that it doesn't have to worry about checked exceptions either.
U	applyEx() Implement this one method and you don't have to worry about checked exceptions.
default U	call()
default U	get()

Method Detail

applyEx

U applyEx()
   throws Exception

Implement this one method and you don't have to worry about checked exceptions.

Throws:

Exception

apply

default U apply()

The class that takes a consumer as an argument uses this convenience method so that it doesn't have to worry about checked exceptions either.

get

default U get()

Specified by:

get in interface Supplier<U>

call

default U call()
        throws Exception

Specified by:

call in interface Callable<U>

Throws:

Exception