cyclops.control

Class Writer<W,T>

java.lang.Object

cyclops.control.Writer<W,T>

All Implemented Interfaces:

Transformable<T>, java.lang.Iterable<T>

public final class Writer<W,T>
extends java.lang.Object
implements Transformable<T>, java.lang.Iterable<T>

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Writer.µ

Constructor Summary

Constructors

Constructor and Description
Writer()

Method Summary

Modifier and Type	Method and Description
<R> Writer<W,R>	flatMap(java.util.function.Function<? super T,? extends Writer<W,? extends R>> fn)
<R1,R4> Writer<W,R4>	forEach2(java.util.function.Function<? super T,Writer<W,R1>> value2, java.util.function.BiFunction<? super T,? super R1,? extends R4> yieldingFunction) Perform a For Comprehension over a Writer, accepting a generating function.
<R1,R2,R4> Writer<W,R4>	forEach3(java.util.function.Function<? super T,? extends Writer<W,R1>> value2, java.util.function.BiFunction<? super T,? super R1,? extends Writer<W,R2>> value3, Fn3<? super T,? super R1,? super R2,? extends R4> yieldingFunction) Perform a For Comprehension over a Writer, accepting 2 generating function.
<R1,R2,R3,R4> Writer<W,R4>	forEach4(java.util.function.Function<? super T,? extends Writer<W,R1>> value2, java.util.function.BiFunction<? super T,? super R1,? extends Writer<W,R2>> value3, Fn3<? super T,? super R1,? super R2,? extends Writer<W,R3>> value4, Fn4<? super T,? super R1,? super R2,? super R3,? extends R4> yieldingFunction)
java.util.Iterator<T>	iterator()
<R> Writer<W,R>	map(java.util.function.Function<? super T,? extends R> mapper) Transform this functor using the supplied transformation function
<R> Writer<W,R>	set(R value)
Writer<W,T>	tell(W write)
static <W,T> Writer<W,T>	writer(T value, Monoid<W> combiner)
static <W,T> Writer<W,T>	writer(org.jooq.lambda.tuple.Tuple2<T,W> values, Monoid<W> combiner)
static <W,T> Writer<W,T>	writer(T value, W initial, Monoid<W> combiner)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.aol.cyclops2.types.functor.Transformable

cast, peek, retry, retry, trampoline

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

Writer

public Writer()

Method Detail

map

public <R> Writer<W,R> map(java.util.function.Function<? super T,? extends R> mapper)

Description copied from interface: Transformable

Transform this functor using the supplied transformation function

 


    of(1,2,3).map(i->i*2)

    //[2,4,6]

 
 

Specified by:

map in interface Transformable<T>

Parameters:

mapper - Transformation function

Returns:

Transformed Transformable

flatMap

public <R> Writer<W,R> flatMap(java.util.function.Function<? super T,? extends Writer<W,? extends R>> fn)

tell

public Writer<W,T> tell(W write)

set

public <R> Writer<W,R> set(R value)

forEach4

public <R1,R2,R3,R4> Writer<W,R4> forEach4(java.util.function.Function<? super T,? extends Writer<W,R1>> value2,
                                           java.util.function.BiFunction<? super T,? super R1,? extends Writer<W,R2>> value3,
                                           Fn3<? super T,? super R1,? super R2,? extends Writer<W,R3>> value4,
                                           Fn4<? super T,? super R1,? super R2,? super R3,? extends R4> yieldingFunction)

forEach3

public <R1,R2,R4> Writer<W,R4> forEach3(java.util.function.Function<? super T,? extends Writer<W,R1>> value2,
                                        java.util.function.BiFunction<? super T,? super R1,? extends Writer<W,R2>> value3,
                                        Fn3<? super T,? super R1,? super R2,? extends R4> yieldingFunction)

Perform a For Comprehension over a Writer, accepting 2 generating function. This results in a three level nested internal iteration over the provided Writers.

 

   import static com.aol.cyclops2.reactor.Writers.forEach3;

    forEach3(Writer.just(1),
    a-> Writer.just(a+1),
    (a,b) -> Writer.<Integer>just(a+b),
    Tuple::tuple)

 
 

Parameters:

value1 - top level Writer

value2 - Nested Writer

value3 - Nested Writer

yieldingFunction - Generates a result per combination

Returns:

Writer with a combined value generated by the yielding function

forEach2

public <R1,R4> Writer<W,R4> forEach2(java.util.function.Function<? super T,Writer<W,R1>> value2,
                                     java.util.function.BiFunction<? super T,? super R1,? extends R4> yieldingFunction)

Perform a For Comprehension over a Writer, accepting a generating function. This results in a two level nested internal iteration over the provided Writers.

 

   import static com.aol.cyclops2.reactor.Writers.forEach;

    forEach(Writer.just(1),
    a-> Writer.just(a+1),
    Tuple::tuple)

 
 

Parameters:

value1 - top level Writer

value2 - Nested Writer

yieldingFunction - Generates a result per combination

Returns:

Writer with a combined value generated by the yielding function

writer

public static <W,T> Writer<W,T> writer(T value,
                                       Monoid<W> combiner)

writer

public static <W,T> Writer<W,T> writer(T value,
                                       W initial,
                                       Monoid<W> combiner)

writer

public static <W,T> Writer<W,T> writer(org.jooq.lambda.tuple.Tuple2<T,W> values,
                                       Monoid<W> combiner)

iterator

public java.util.Iterator<T> iterator()

Specified by:

iterator in interface java.lang.Iterable<T>