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Why isn't there IntStream.flatMapToObj()?

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情话喂你
情话喂你 2021-01-04 03:40

I\'m trying to do something like this:

Stream stream = IntStream.of(...)
        .flatMapToObj(i -> getStreamOfObjects(i));


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                (楼主)
            
              
                  
    
                2021-01-04 04:06
              
    

            
    
            
    
              
              

    
  
    Why was it was left out?
    

    


    The API provides reusable building blocks. The relevant building blocks here are IntStream, mapToObj, flatMap. From these you can achieve what you want: map an in stream to objects, and then get a flat map. Providing permutations of building blocks would not be practical, and harder to extend.
    


    
  
    What's a recommended workaround?
    

    


    As hinted earlier, use the available building blocks (mapToObj + flatMap):
    


    Stream stream = IntStream.of(...)
    .mapToObj(i -> Stream.of(...))
    .flatMap(...);

    
    
             
    
                                                        
    
            
            
    
              
                
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