Groups > comp.lang.java.programmer > #33354

streams list in list reduce

Newsgroups	comp.lang.java.programmer
Date	2015-12-16 02:52 -0800
Message-ID	<3360df16-6ac2-4ee4-b6b4-2fcaac9e6aa7@googlegroups.com> (permalink)
Subject	streams list in list reduce
From	Philipp Kraus <philipp.kraus.flashpixx@gmail.com>

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Hello,

I have got a definition like

interface Execute
{
    Collection<Term> exec();
}

and run vai streams over my data

List<Execute> x; // x is filled

And I would like to create 
List<Term> y = x.stream().map( i -> i.exec()).collect( ?? toList() );

I would like to run addAll on the collect and build a concatinated list if all lists which are return by the exec method. How can I create this concatinated list?

Thanks

Phil

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streams list in list reduce Philipp Kraus <philipp.kraus.flashpixx@gmail.com> - 2015-12-16 02:52 -0800
  Re: streams list in list reduce Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-12-16 09:23 -0500
  Re: streams list in list reduce Arne Vajhøj <arne@vajhoej.dk> - 2015-12-16 21:14 -0500
    Re: streams list in list reduce Philipp Kraus <philipp.kraus.flashpixx@gmail.com> - 2015-12-16 23:41 -0800

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