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Eclipse goes crowd! With Code Recommenders 2.0 into the future of collaborating teamsmarcel.bruch@codetrails.com

Recommenders  1.0

Call  Comple5on

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Snippet  Comple5on

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Overrides  Comple5on

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Chain  Comple5on

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Subwords  Comple5on

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Are  we  already  where  we  want  to  be?

How  Recommenders  1.0  works

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Code  Recommenders  Knowledge  Base

❷Mine  data,extract  paFerns,create  recommenda5on  models

❸deliver  minedknowledge  to  Eclipse  users

❶  Analyze  source  code

Time  for  seeding  new  ideas...

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How  we  (want  to)  work  in  2.0

❹  developers  share  

(clicks,  comple5ons,  snippets)

Code  Recommenders  Knowledge  Base

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Recommenders  1.0

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What  if  we‘d  just  count  calls...?

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Crowdsourcing  constructor  comple5ons...?

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It  learns  from  you.  From  the  very  1st  moment.

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Problems:• EF  sees  privacy  issues• EF  has  limited  resources• EF  mills  grind  slowly

• Can‘t  wait  6  months  before  we  can  evaluate  a  new  idea!

SoluAon:• Do  it  outside  Eclipse:

What  is  shared?

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{„type“: „StringBuilder“,„completion“: „append(String)“

}

More  than  15.000  Comple5on  Events!

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13%

20%

4%4%

48%

9%2%

org.eclipse.*

java.*

org.apache.*

com.google.*other

javax.*

android.*

No  context-­‐awareness...

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How  to  fix  this?

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Breaking News:Words carry meaning!As leading scientists found out, words....

Rethin

king  Re

comme

nda/on

s

 for  Co

de  Com

ple/on

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A  simple  observa5on

You  wouldn‘t  expect  a  call  to  #dispose()  in  #createSomething(),  right?

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What  you  expect  is...

How  many  words  do  you  have  for  ‟create”  ?

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So,  it  works  for  #createSomething  too!

Almost  no  difference!

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0

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Precision

Recall

ClassicVerbs

Interpolated  Precision  Recall  Curves  over  136.761  samples  on  JRE

What  get‘s  shared?

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{„method“: „create“„type“: „Composite“,„completion“: „setLayout(...)“

}

LET‘S  BACK  UP  HERE  FOR  A  SECOND!

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We  get  (almost)  language  agnos5c!

Start  sharing!

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IF  YOU  CAN‘T  SHARE  (BUT  WANNA  USE)  ...

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Your  Choice,  Neo.

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Get  the  plugin...

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SNIPMATCH

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„Snippets  for  the  World“

Why  do  you  use  code  templates?

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Safe  5me  typing

<ctrl+space>

<ctrl+space>

{<ctrl+space>

<ctrl+space>

}

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Learning  from  Snippets

Snippetsarrayaddarraymerg

Awesome  New  

Snippet

Snippetsarrayaddarraymerg Snippets

arrayaddarraymerg

Snippetsarrayaddarraymerg

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Sharing  Code  Snippets?

Snippet  Repository

Snippetsarrayaddarraymerg

Awesome  new  

Snippet

Snippetsarrayaddarraymerg

Snippetsarrayaddarraymerg

Snippetsarrayaddarraymerg

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Sharing  Code  Snippets

Snipmatch  Demo

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WHAT  ABOUT  CROWD-­‐SOURCING?

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Sharing  Snippets

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Sharing  Snippets

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WHAT  ABOUT  GOOD  AND  BAD  SNIPPETS?

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Snippetsarrayaddarraymer

Snippetsarrayaddarraymer

Snippetsarrayaddarraymer

Snippetsarrayaddarraymer

Snippetsarrayaddarraymer

Vaadin  Youtube  +1 Vaadin  Youtube  +1Vaadin  Youtube  +1 Vaadin  Youtube  +1

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Community  Votes

Vaadin  Youtube  +1

Snippet  Repository

Vaadin  Youtube    +5Vaadin  BuFon          +2Vaadin  Textarea    +1

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Collec5ng  implicit  &  explicit  feedback

5 0

Recommenders  2.0  goes  headless

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Enriching  Javadoc  with  Recommenders

X

createDialogArea

protected Control createDialogArea(Composite parent)

Creates and returns the contents of the upper part of this dialog (above the button bar).

See:Subclasses that override createDialogArea also frequently override:• configureShell(Shell): 63 %• okPressed(): 51 %

Parameters:parent - the parent composite to contain the dialog area. This argument is never null.

Returns:the dialog area control. Reimplementations must not return null.

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Drop  by  at  17:30,Silchersaal,  1st  floor,  le@  

Keep  up  sharing!

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@MarcelBruch+MarcelBruch

@Recommenders+Code  Recommenders

Thanks.