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From "Kathey Marsden (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-257) Format Contributing to Derby, Tips and Tasks To Get You Started Document for the website
Date Sun, 22 May 2005 13:49:52 GMT
     [ http://issues.apache.org/jira/browse/DERBY-257?page=comments#action_65953 ]
     
Kathey Marsden commented on DERBY-257:
--------------------------------------



Jean Anderson mentioned the idea of putting a tag in the Jira description like [STARTER?]
instead of   listing the bugs in the document which is already out of  date.  Then I think
there can be a Jira query link from the doc which would be much better than trying to keep
this doc updated.





> Format Contributing to Derby, Tips and Tasks To Get You Started Document for the website
> ----------------------------------------------------------------------------------------
>
>          Key: DERBY-257
>          URL: http://issues.apache.org/jira/browse/DERBY-257
>      Project: Derby
>         Type: Task
>   Components: Web Site
>     Versions: 10.1.0.0
>     Reporter: Kathey Marsden
>     Priority: Trivial
>      Fix For: 10.1.0.0

>
> Format the document below for the website. 
> It will have to be a living document so things get removed as they are 
> fixed and new ones get added.   It would also be nice to have a volunteer to keep it
maintained and pester derby-dev from time to get suggestions for new items for the list.
> If there is a good, "How to Get Started in Open Source Development" article.
> That might be nice to add too.
> Whomever volunteers to do it can post the page to the Jira issue. Options for formatting
content for the web site are at http://incubator.apache.org/derby/papers/index.html#How+to+Contribute+Papers
> This was filed 5/1/2005. Check listed bugs for current status whenever this document
gets formatted for the website.
> --------------------------------------------------------
> Contributing to Derby, Tips and Tasks To Get You Started
> So you are new to Derby and want to contribute right away.  Here  are some ideas to get
you started. 
> Ongoing Projects
> Below are some ongoing projects, which are great starting places and always available.
> Test the Documentation
> 	      
> Pick a manual, review it carefully and test all the examples.  If you find something
that looks wrong post a question to derby-user@apache.org.  If the community confirms it as
a  documentation bug, file a Jira entry.
> Answer User Questions
> Answer user questions as they come in to derby-user@apache.org. Make sure bugs get filed
properly when they come up. File bugs for documentation corrections and update FAQ's.
> Add Functional Tests
> Until we have 100% code coverage we know there are still opportunities to enhance functional
testing.   See https://svn.apache.org/viewcvs.cgi/*checkout*/incubator/derby/code/trunk/java/testing/README.htm
for information on writing tests.  Write the tests and if you hit something that doesn't work,
post a question to derby-user@apache.org for confirmation.   If the community confirms it
as a  bug, file a Jira entry.  
> Add More Existing Tests To the Network Server Suite.
> This is entered as Derby-209.   Choosing this as an initial task will help you come up
to speed on the test harness and network server.
> Add Stress and Scalability Tests
> Choose something that Derby does and push it to the limit. Some of these kinds of tests
can be incorporated into the functional test framework. For example Derby 216 is a task to
expand on the test case for Derby-176 related to cases where large amounts of byte code are
generated.
> Provide Benchmark / Performance Examples:
> Derby could use some contributions in the benchmark/performance example area.  This is
a good area for someone who wants to learn any of java, jdbc, sql and/or derby.  It would
be nice to have some public examples applications/code which runs well in the derby embedded
server domain.
> Extra credit:
>       o compare/contrast performance of same application with other dbs.
>       o implement public domain standard benchmark.
> Write Tests for an Upcoming Feature
> You may ask how you can do this, but because Derby is standards based, you can often
install your second favorite relational database software, one that has the feature already
implemented and run your tests against that.  Then you can post your test to the Jira entry.
This will facilitate implementation and improve quality.
> Apply, Test and Review  Patches 
> Apply, review and test patches that have been posted for review.  Really make a careful
detailed review, try to understand all the code and if you don't, ask questions about it.
 Look at the functional tests supplied and see if you can think of additional cases that could
be added.  This is a highly valuable task. If the committers don't have community members
doing this, they spend all their time reviewing and committing and never contributing themselves.
 This task will  help preserve the quality of Derby.
> Cleanup and Expand Javadoc
> In addition to Derby-204, to cleanup the javadoc warnings.  Much of the javadoc could
be expanded and improved upon. package.html files can be created to give a package overview.
  Committers are always happy to assist, review and expedite these kinds of contributions
because they enhance  the overall competency of the community.
> First Code Changes
> For your first code change choose something that looks really easy. Something you can
do and do well. This will be something different for different people. The point of your first
change should be to go through the whole process and be comfortable with it before taking
on major coding projects.  
> A  "Do no harm" mantra is always important if you are considering changing Derby. Your
first priority in introducing any new functionality should be to not introduce a regression
in functionality or performance.
> Reference Materials
> For general process and guidelines see:
>     http://db.apache.org/guidelines.html
>     http://www.apache.org/foundation/how-it-works.html
>    
> For the mechanics of building Derby and submitting a patch see
>     http://incubator.apache.org/derby/derby_downloads.html
>     http://incubator.apache.org/derby/derby_comm.html
> For Derby Internals
>     http://incubator.apache.org/derby/papers/index.html
>     Read the javadoc.
> Below are some tasks that are may be good candidates for first changes.
> Derby-204
> Cleanup  Derby javadoc warnings.  Take a tour of the code and add great value. Feel free
to take a subset of the javadoc in an area that interests you.
> Derby-209 
> Add more tests to Network Server.
> Learn about Network Server, the test harness, and help improve network server quality.
> Derby-205
> Rename org.apache.derby.impl.drda.DB2jServerImpl to NetworkServerControlImpl. A useful
cleanup project to take you through the change cycle.
> Derby-243
> connection toString() doesn't give enough information
> Derby-216
> Derby-176 test case. Try to identify cases where Derby generates byte code that exceeds
the JVM Specification limits. This is an interesting white box testing task that can be a
good entry point if you are interested in code generation or code paths for different types
of queries.
>  
> Derby-180
> XCL47 SQL State duplicated in messages_en.properties.  Go through the code change process
and learn about how Derby Handles SQLStates
> Derby-212
> Optimize some specific methods in Network Server. A targeted place to get started in
Network Server and improve Network Server performance.
> Derby-211
> Network Server returns no result sets for a procedure call that returns no result. A
protocol fix that will help us work toward network server/ embedded compatibility
> Derby-51
> Need NetworkServerControl shutdown API method that does not shutdown derby embedded.
 This will allow applications that embed network server to shut down the server and continue
with embedded access.
> Derby-17
> Network Server Needs to generate CRRTKN on ACCRDB if client does not send it
> Derby 104
> Get rid of the Max length of 18 for constraint names.  Help Jira and other applications
migrate to Derby easily.
> Derby 223
> Change programs under demo directory to use consistent package names so IDEs do not report
errors
> Derby-197
> Add tip for Windows users in BUILDING.txt file regarding file paths in the ant.properties
file. Save new folks a lot of time.
> Derby-117
> Try out patch for Derby 117 and verify changes. Good introduction to the Network Server
Servlet
> Derby 213
> ResultSet.next() after last row of FORWARD_ONLY cursor throws an SQL Exception with Network
Server
> DERBY-229 	
> Column names on ResultSet.updateXXX and getXXX methods are handled incorrectly 
> DERBY-203 	
> setNull(x,JDBCType.DATE) does not work when batching is turned on
> DERBY-195 	
> isSearchable() returns true for a calculated field 
> DERBY-194 	
> getPrecision() on TIME and TIMESTAMP is zero 
> DERBY-163 	
> Timestamp formatting 
> DERBY-39 	
> Strange error in JOIN ON clause 
> Derby client Tasks
> There are some very time critical Derby client tasks that are fairly large but  great
starters in terms of difficulty. There is no component for Derby client in Jira yet.  So they
don't have JIRA numbers.
> Match embedded SQL States wherever possible. 
> The client tends to throw errors with null SQLStates or SQLStates that don't match embedded.
 It would be great to get them matched up before release.
> Document areas of embedded incompatibility and file  JIRA entries
> In addition to the SQLStates, there may be additional incompatibilities with the embedded
driver. These could be indicated in the documentation as areas that may change, so we don't
get locked into any incompatibilities.  This task could be done in conjunction with Derby-209.
 

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