org.apache.commons.lang3.function

Interface FailableToBooleanFunction<T,E extends Throwable>

Type Parameters:

T - the type of the argument to the function

E - The kind of thrown exception or error.

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 FailableToBooleanFunction<T,E extends Throwable>

A functional interface like a ToBooleanFunction that declares a Throwable.

Since:

3.18

Field Summary

Fields

Modifier and Type	Field and Description
static FailableToBooleanFunction	NOP NOP singleton

Method Summary

Modifier and Type	Method and Description
boolean	applyAsBoolean(T t) Applies this function to the given arguments.
static <T,E extends Throwable> FailableToBooleanFunction<T,E>	nop() Gets the NOP singleton.

Field Detail

NOP

static final FailableToBooleanFunction NOP

NOP singleton

Method Detail

nop

static <T,E extends Throwable> FailableToBooleanFunction<T,E> nop()

Gets the NOP singleton.

Type Parameters:

T - the type of the argument to the function

E - The kind of thrown exception or error.

Returns:

The NOP singleton.

applyAsBoolean

boolean applyAsBoolean(T t)
                throws E extends Throwable

Applies this function to the given arguments.

Parameters:

t - the first function argument

Returns:

the function result

Throws:

E - Thrown when the function fails.

E extends Throwable