com.aol.cyclops.monad

Class AnyMonads

java.lang.Object

com.aol.cyclops.monad.AnyMonads

All Implemented Interfaces:

AnyMFunctions

public class AnyMonads
extends java.lang.Object
implements AnyMFunctions

Constructor Summary

Constructors

Constructor and Description
AnyMonads()

Method Summary

Modifier and Type	Method and Description
<T1> AnyM<java.util.stream.Stream<T1>>	sequence(java.util.Collection<AnyM<T1>> seq) Convert a Collection of Monads to a Monad with a List
<T1> AnyM<java.util.stream.Stream<T1>>	sequence(java.util.stream.Stream<AnyM<T1>> seq) Convert a Stream of Monads to a Monad with a List
<T,R> AnyM<java.util.List<R>>	traverse(java.util.Collection<AnyM<T>> seq, java.util.function.Function<T,R> fn) Convert a Collection of Monads to a Monad with a List applying the supplied function in the process
<T,R> AnyM<java.util.List<R>>	traverse(java.util.stream.Stream<AnyM<T>> seq, java.util.function.Function<T,R> fn) Convert a Stream of Monads to a Monad with a List applying the supplied function in the process

Methods inherited from class java.lang.Object

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

Constructor Detail

AnyMonads

public AnyMonads()

Method Detail

traverse

public <T,R> AnyM<java.util.List<R>> traverse(java.util.Collection<AnyM<T>> seq,
                                              java.util.function.Function<T,R> fn)

Convert a Collection of Monads to a Monad with a List applying the supplied function in the process

  
       List<CompletableFuture<Integer>> futures = createFutures();
       AnyM<List<String>> futureList = AnyMonads.traverse(AsAnyMList.anyMList(futures), (Integer i) -> "hello" +i);
        
                

Specified by:

traverse in interface AnyMFunctions

Parameters:

seq - Collection of Monads

fn - Function to apply

Returns:

Monad with a list

traverse

public <T,R> AnyM<java.util.List<R>> traverse(java.util.stream.Stream<AnyM<T>> seq,
                                              java.util.function.Function<T,R> fn)

Convert a Stream of Monads to a Monad with a List applying the supplied function in the process

 
       Stream<CompletableFuture<Integer>> futures = createFutures();
       AnyM<List<String>> futureList = AnyMonads.traverse(AsAnyMList.anyMList(futures), (Integer i) -> "hello" +i);
        
                

Specified by:

traverse in interface AnyMFunctions

Parameters:

seq - Stream of Monads

fn - Function to apply

Returns:

Monad with a list

sequence

public <T1> AnyM<java.util.stream.Stream<T1>> sequence(java.util.Collection<AnyM<T1>> seq)

Convert a Collection of Monads to a Monad with a List

 
		List<CompletableFuture<Integer>> futures = createFutures();
		AnyM<List<Integer>> futureList = AnyMonads.sequence(AsAnyMList.anyMList(futures));

	   //where AnyM wraps  CompletableFuture<List<Integer>>
	  

Specified by:

sequence in interface AnyMFunctions

Parameters:

seq - Collection of monads to convert

Returns:

Monad with a List

See Also:

for helper methods to convert a List of Monads / Collections to List of AnyM

sequence

public <T1> AnyM<java.util.stream.Stream<T1>> sequence(java.util.stream.Stream<AnyM<T1>> seq)

Convert a Stream of Monads to a Monad with a List

		Stream<CompletableFuture<Integer>> futures = createFutures();
		AnyM<List<Integer>> futureList = AnyMonads.sequence(AsAnyMList.anyMList(futures));

	   //where AnyM wraps  CompletableFuture<List<Integer>>
	  

Specified by:

sequence in interface AnyMFunctions

Parameters:

seq - Stream of monads to convert

Returns:

Monad with a List

See Also:

for helper methods to convert a List of Monads / Collections to List of AnyM