Package org.apache.commons.lang3.function

Interface FailableLongUnaryOperator<E extends Throwable>

Type Parameters:

E - The kind of thrown exception or error.

public interface FailableLongUnaryOperator<E extends Throwable>

A functional interface like LongUnaryOperator that declares a Throwable.

Since:

3.11

Field Summary

Fields

Modifier and Type	Field	Description
static final FailableLongUnaryOperator	NOP	NOP singleton

Method Summary

Modifier and Type	Method	Description
default FailableLongUnaryOperator<E>	andThen(FailableLongUnaryOperator<E> after)	Returns a composed FailableDoubleUnaryOperator like LongUnaryOperator.andThen(LongUnaryOperator).
long	applyAsLong(long operand)	Applies this operator to the given operand.
default FailableLongUnaryOperator<E>	compose(FailableLongUnaryOperator<E> before)	Returns a composed FailableLongUnaryOperator like LongUnaryOperator.compose(LongUnaryOperator).
static <E extends Throwable> FailableLongUnaryOperator<E>	identity()	Returns a unary operator that always returns its input argument.
static <E extends Throwable> FailableLongUnaryOperator<E>	nop()	Returns The NOP singleton.

Field Details

NOP

static final FailableLongUnaryOperator NOP

NOP singleton

Method Details

identity

static <E extends Throwable>
FailableLongUnaryOperator<E> identity()

Returns a unary operator that always returns its input argument.

Type Parameters:

E - The kind of thrown exception or error.

Returns:

a unary operator that always returns its input argument

nop

static <E extends Throwable>
FailableLongUnaryOperator<E> nop()

Returns The NOP singleton.

Type Parameters:

E - The kind of thrown exception or error.

Returns:

The NOP singleton.

andThen

default FailableLongUnaryOperator<E> andThen(FailableLongUnaryOperator<E> after)

Returns a composed FailableDoubleUnaryOperator like LongUnaryOperator.andThen(LongUnaryOperator).

Parameters:

after - the operator to apply after this one.

Returns:

a composed FailableLongUnaryOperator like LongUnaryOperator.andThen(LongUnaryOperator).

Throws:

NullPointerException - if after is null.

See Also:

• compose(FailableLongUnaryOperator)

applyAsLong

long applyAsLong(long operand)
          throws E

Applies this operator to the given operand.

Parameters:

operand - the operand

Returns:

the operator result

Throws:

E - Thrown when a consumer fails.

compose

default FailableLongUnaryOperator<E> compose(FailableLongUnaryOperator<E> before)

Returns a composed FailableLongUnaryOperator like LongUnaryOperator.compose(LongUnaryOperator).

Parameters:

before - the operator to apply before this one.

Returns:

a composed FailableLongUnaryOperator like LongUnaryOperator.compose(LongUnaryOperator).

Throws:

NullPointerException - if before is null.

See Also:

• andThen(FailableLongUnaryOperator)