LongUnaryOperator
public interface LongUnaryOperator
| java.util.function.LongUnaryOperator |
Represents an operation on a single long-valued operand that produces a long-valued result. This is the primitive type specialization of UnaryOperator for long.
This is a functional interface whose functional method is applyAsLong(long).
See also:
Summary
Public methods | |
|---|---|
default LongUnaryOperator | andThen(LongUnaryOperator after) Returns a composed operator that first applies this operator to its input, and then applies the |
abstract long | applyAsLong(long operand) Applies this operator to the given operand. |
default LongUnaryOperator | compose(LongUnaryOperator before) Returns a composed operator that first applies the |
static LongUnaryOperator | identity() Returns a unary operator that always returns its input argument. |
Public methods
andThen
public LongUnaryOperator andThen (LongUnaryOperator after)
Returns a composed operator that first applies this operator to its input, and then applies the after operator to the result. If evaluation of either operator throws an exception, it is relayed to the caller of the composed operator.
| Parameters | |
|---|---|
after | LongUnaryOperator: the operator to apply after this operator is applied |
| Returns | |
|---|---|
LongUnaryOperator | a composed operator that first applies this operator and then applies the after operator |
| Throws | |
|---|---|
NullPointerException | if after is null |
See also:
applyAsLong
public abstract long applyAsLong (long operand)
Applies this operator to the given operand.
| Parameters | |
|---|---|
operand | long: the operand |
| Returns | |
|---|---|
long | the operator result |
compose
public LongUnaryOperator compose (LongUnaryOperator before)
Returns a composed operator that first applies the before operator to its input, and then applies this operator to the result. If evaluation of either operator throws an exception, it is relayed to the caller of the composed operator.
| Parameters | |
|---|---|
before | LongUnaryOperator: the operator to apply before this operator is applied |
| Returns | |
|---|---|
LongUnaryOperator | a composed operator that first applies the before operator and then applies this operator |
| Throws | |
|---|---|
NullPointerException | if before is null |
See also:
identity
public static LongUnaryOperator identity ()
Returns a unary operator that always returns its input argument.
| Returns | |
|---|---|
LongUnaryOperator | a unary operator that always returns its input argument |