java8.util.function

Class LongUnaryOperators

java.lang.Object

java8.util.function.LongUnaryOperators

public final class LongUnaryOperators
extends java.lang.Object

A place for static default implementations of the new Java 8 default interface methods and static interface methods in the LongUnaryOperator interface.

Method Summary

Modifier and Type	Method and Description
static LongUnaryOperator	andThen(LongUnaryOperator this_, LongUnaryOperator after) Returns a composed operator that first applies the this_ operator to its input, and then applies the after operator to the result.
static LongUnaryOperator	compose(LongUnaryOperator this_, LongUnaryOperator before) Returns a composed operator that first applies the before operator to its input, and then applies the this_ operator to the result.
static LongUnaryOperator	identity() Returns a unary operator that always returns its input argument.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

compose

public static LongUnaryOperator compose(LongUnaryOperator this_,
                                        LongUnaryOperator before)

Returns a composed operator that first applies the before operator to its input, and then applies the this_ operator to the result. If evaluation of either operator throws an exception, it is relayed to the caller of the composed operator.

Parameters:

this_ - the operator to apply after the before operator is applied

before - the operator to apply before the this_ operator is applied

Returns:

a composed operator that first applies the before operator and then applies the this_ operator

Throws:

java.lang.NullPointerException - if this_ is null

java.lang.NullPointerException - if before is null

See Also:

andThen(LongUnaryOperator, LongUnaryOperator)

andThen

public static LongUnaryOperator andThen(LongUnaryOperator this_,
                                        LongUnaryOperator after)

Returns a composed operator that first applies the 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:

this_ - the operator to apply before the after operator is applied

after - the operator to apply after the this_ operator is applied

Returns:

a composed operator that first applies the this_ operator and then applies the after operator

Throws:

java.lang.NullPointerException - if this_ is null

java.lang.NullPointerException - if after is null

See Also:

compose(LongUnaryOperator, LongUnaryOperator)

identity

public static LongUnaryOperator identity()

Returns a unary operator that always returns its input argument.

Returns:

a unary operator that always returns its input argument