OpenJDK 27 · java.util.function.LongUnaryOperator · APIdia, the JavaDoc alternative

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).

Method Summary

Modifier and Type	Method and Description
public default LongUnaryOperator	Returns: a composed operator that first applies this operator and then applies the `after` operator andThen(LongUnaryOperator the operator to apply after this operator is applied after) Returns a composed operator that first applies this operator to its input, and then applies the `after` operator to the result.
public long	Returns: the operator result applyAsLong(long the operand operand) Applies this operator to the given operand.
public default LongUnaryOperator	Returns: a composed operator that first applies the `before` operator and then applies this operator compose(LongUnaryOperator the operator to apply before this operator is applied before) Returns a composed operator that first applies the `before` operator to its input, and then applies this operator to the result.
public static LongUnaryOperator	Returns: a unary operator that always returns its input argument identity() Returns a unary operator that always returns its input argument.

Method Detail

andThen back to summary

andThen	back to summary
public default 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 Exceptions NullPointerException: if after is null See Also `compose(LongUnaryOperator)`

public default 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

Exceptions

NullPointerException:: if after is null

See Also

compose(LongUnaryOperator)

applyAsLong	back to summary
public long applyAsLong(long operand) Applies this operator to the given operand. Parameters operand:long the operand Returns:long the operator result

applyAsLong

back to summary

public long applyAsLong(long operand)

Applies this operator to the given operand.

Parameters

operand:long: the operand

Returns:long

the operator result

compose back to summary

compose	back to summary
public default 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 Exceptions NullPointerException: if before is null See Also `andThen(LongUnaryOperator)`

public default 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

Exceptions

NullPointerException:: if before is null

See Also

andThen(LongUnaryOperator)

identity	back to summary
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

identity

back to summary

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

public Interface LongUnaryOperator

Method Summary

Method Detail