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Tricks of the Trade
Ein persönlicher Einblick in die Werkzeugkiste eines Entwicklers
Hardy Ferentschik V32
V32 Tricks of the Trade Ein persnlicher Einblick in die - - PowerPoint PPT Presentation
V32 Tricks of the Trade Ein persnlicher Einblick in die - - PowerPoint PPT Presentation
V32 Tricks of the Trade Ein persnlicher Einblick in die Werkzeugkiste eines Entwicklers Hardy Ferentschik A look into my toolbox hardy.ferentschik@redhat.com About me Currently part of the Hibernate Team w/ focus on Validator and Search
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A look into my toolbox
hardy.ferentschik@redhat.com
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About me
- Currently part of the Hibernate Team w/ focus on Validator and Search
- Over ten years experience in software development
! Worked for small (10), medium (100) and big (3000+) companies ! Have been everything from Team Lead to System Administrator ! Developed in C++, Perl, Ruby, ... and of course Java
- Software Craftsman
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Need to understand our tools and ourselves!
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Dreyfus Model
Competent Proficient Expert Advanced Beginner Novice 10 years
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Practice Practice Practice
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Be a specialist!
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Know the basics
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Resurrect deleted files
svn delete foo.txt svn commit -m "delete foo" svn log -v svn copy svn://localhost/test/foot.txt@336 ./foo.txt git rm foo.txt git commit -m "delete foo" git rev-list -n 1 HEAD -- foo.txt git checkout b193eecf895e45b4f875eb4e6030f2c2e9fac897^ -- foo.txt
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Be a generalist!
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Know your bash ;-)
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If I had to choose ...
find grep sed
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Find all jar files in your JBoss installation containing a given class
Problem
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for i in `find . -name "*.jar"`; do count=$(jar -tvf $i | grep -c "MyClass") ; if [ "$count" -gt "0" ]; then echo "Match in $i" ; fi; done
Possible solution
- or use JBoss Tattletale :-)
function findClass() { for i in `find $1 -name "*.jar"`; do count=$(jar -tvf $i | grep -c "$2") ; if [ "$count" -gt "0" ]; then echo "Match in $i" ; fi; done }
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Keep solutions log!
- Text files
- Wiki
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On the shoulders of giants
- refcardz.dzone.com
- stackoverflow.com
- JavaSpecialists
- JUGs
- JUDCon (next 7/8 of October, Berlin)
- Create a Mastermind Group
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SLIDE 24 April 2010
! "#$%&'&()*+,-,.
Prepared by the ThoughtWorks Technical Advisory Board SLIDE 25
Learn to unlearn
- “Just” reading is not enough
- Need to form your own judgements by experimenting and
building throw away code ! Singleton pattern - good or evil !? ! svn vs. git ! Coding Katas
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From Novice to Expert
Competent Proficient Expert Advanced Beginner Novice Relevant Focus Considers Everything Intuition Rules Part of System Detached Observer
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L + R modes
CPU #1 linear, slow non-linear, fast shared bus
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L and R characteristics
- Verbal
- Analytic
- Symbolic
- Abstract
- Rational
- Logical
L
- Non-verbal
- Synthetic
- Concrete
- Analogic
- Non-rational
- Intuitive
R
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- Pen and notepad
- Mindmaps
- Remember the Milk
Capture insight 24x7
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Feed the R mode
- Try to find and use metaphors
- Free-Form Journaling
! Write Drunk, Revise Sober ! Morning Pages Technique ! Fieldstone method
- Change your routines
! Change your neural wiring
- Go for a walk!
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Friedrich August Kekule
Benzene
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Thomas Edison
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Q + A
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Want to know more?
- Pragmatic Thinking & Learning, Andy Hunt
- Practices of an Agile Developer, Venkat Subramaniam
- My Job Went to India, Chad Fowler
- Software Craftsmanship, Pete McBreen
hardy.ferentschik@redhat.com
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Links
- https://hudson.dev.java.net
- http://nexus.sonatype.org
- http://www.sonarsource.org
- http://refcardz.dzone.com
- http://stackoverflow.com
- http://www.javaspecialists.eu
- http://www.mindnode.com
- https://www.rememberthemilk.com
- http://www.thoughtworks.com/radar
hardy.ferentschik@redhat.com