Difference between revisions of "PostgreSQL Adapter"

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{{Admon/obsolete}}
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<big><big> PostgreSQL Adapter for NexJ </big></big>
 
<big><big> PostgreSQL Adapter for NexJ </big></big>
 
{{NexJ_Express Index}}
 
{{NexJ_Express Index}}
−
[[category: NexJ Current Projects]]
+
[[category: NexJ Past Projects]]
 +
[[category: NexJ Express PostgreSQL]]
 +
 
  
 
== Project Goal==
 
== Project Goal==
−
Develope an adapter to enable NexJ Express model to interact with PostgreSQL database
+
Develop an adapter to enable NexJ Express model to interact with PostgreSQL database.
 +
 
 +
===Contributors===
 +
* [[User:Gbatumbya|Grace Batumbya]]
 +
* [[Minooz/Projects | Minoo Ziaei]]
 +
* [[User:AnastasiaS | Anastasia Semionova]]
 +
 
 +
 
 +
=== Supported PostgreSQL Versions===
 +
* 8.4+
 +
 
  
 
== Current Status==
 
== Current Status==
−
{|class="collapsible collapsed" style="border-style:solid;border-width:thin;border-color:black"
+
* '''Completed''' (October 21, 2011)
 +
* Get the last PostgreSQL adapter source code from http://mercurial.nexj.com/express.cgi/core
 +
 
 +
<!--{|class="collapsible collapsed" style="border-style:solid;border-width:thin;border-color:black"
 
!align="left" style="background-color:SteelBlue; font-weight:bold;border-style:solid;border-width:thin;padding: 2px 2px 2px 2px;"| Dec 2010  
 
!align="left" style="background-color:SteelBlue; font-weight:bold;border-style:solid;border-width:thin;padding: 2px 2px 2px 2px;"| Dec 2010  
 
|-  
 
|-  
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* Application is now connected to the Postgre database.
 
* Application is now connected to the Postgre database.
 
|}
 
|}
−
 
+
-->
−
* [[PostgreSQL_Adapter-nexj/test-env/todo |TODOs]]
 
  
 
==Project Phases==
 
==Project Phases==
−
=== Phase 1: Investigation ===
+
=== Phase 1: Investigation (DONE) ===
 
* Get requirements from NexJ (Meeting on Friday Nov 5th)
 
* Get requirements from NexJ (Meeting on Friday Nov 5th)
 
* Walk-through the code
 
* Walk-through the code
−
* Familiarization with PostgreSQL  
+
* Familiarization with PostgreSQL
 +
 
 +
=== Phase 2: Connect to PostgreSQL server (DONE) ===
 +
* [[NexJ_Express_Connecting_to_PostgreSQL| Connect to PostgreSQL server]]
  
−
=== Phase 2: Connect to PostgreSQL server ===
+
=== Phase 3: PostgreSQLSchemaManager (DONE) ===
−
Install the Server and get NexJ Express Server to communicate to the server
+
* Estimated Duration: 3 weeks (Jan 17 - Feb 11, 2011)
−
* [[PostgreSQL_Adapter-nexj/test-env | Connect to PostgreSQL server]]
+
* [[PostgreSQL Adapter-nexj/extendingSchemaManager | Extending SQLSchemaManager ]]
  
−
=== Phase 3: PostgreSQLSchemaManager ===
+
=== Phase 4: PostgreSQLAdapter (DONE)===
−
Extend SQLSchemaManager to support PostgreSQL.<br/>
+
* Estimated Duration: 3 weeks (Feb 14 - 25, 2011)
−
SQLSchemaManager is used in maintaining database schemas (DDL)
+
* [[PostgreSQL_Adapter-nexj/extendingSQLAdapter | Extending SQLAdapter ]]
  
−
=== Phase 4: PostgreSQLAdapter ===
+
===Phase 5: PostgreSQL UnitTests and Optimization (DONE) ===
−
Extend SQLAdapter to support PostgreSQL.<br/>
+
* Estimated Duration: 2 weeks (Feb 28 - Mar 11, 2016)
−
SQLAdapter is used in manipulate data in existing schemas <br/>
+
* Add database specific tests fostr PostgreSQL
−
<!--
+
*:test for required contrib scripts
−
=== Phase 3: Test first design ===
+
*:test for custom blob read & write functions
−
Running [[PostgreSQL_Adapter-nexj/alltests | AllTests.java]]
+
* Add PostgreSQL specific optimization
−
* 1- [[PostgreSQL_Adapter-nexj/scripts | Create a PostgreSQL database through some scripts]]
+
 
−
* 2- Working inside Schema 'test'
+
===Phase 6: Megre Code with Latest Revision (DONE)  ===
−
: 2.a- [[ PostgreSQL_Adapter-nexj/schema-init | Initilizaing the SQL Environment]]
+
* Merge code with lastest revision from http://mercurial.nexj.com/express
−
: 2.b- [[ PostgreSQL_Adapter-nexj/schema-ddl  | Working with Database Structure - DDL ]]
+
 
−
: 2.c- [[ PostgreSQL_Adapter-nexj/schema-dml | Working with Data in a Table - DML ]]
+
===Phase 7: Test with NexJ Express Studio (DONE)  ===
−
-->
+
* Estimated duration: Mar 7- Apr 14, 2011
 +
* Run model in Express studio using the postgresql adapter
 +
* create scripts for database initialization, creation and dumping
 +
* create scripts for JBoss
 +
* Deploy to JBoss
 +
 
 +
=== Phase 8: Code Review 1 - Meeting (DONE) ===
 +
* Date: Apr 20,2011
 +
* Meet with NexJ Developer to review code
 +
 
 +
=== Phase 9: Code Review 1 - Apply Changes (DONE) ===
 +
* Estimated Duration: Apr 20, 2011 - July 1, 2011
 +
* [[PostgreSQL_Adapter_Project_-_Code_Review_1_Changes | Changes to be made]]
 +
 
 +
=== Phase 10: Code Review 2 (DONE) ===
 +
* Send code for review
 +
*
 +
 
 +
=== Phase 11: Code Review 2 - Apply Changes (DONE) ===
 +
* Estimated Duration: July 7, 2011 - July 15, 2011
 +
* [[PostgreSQL_Adapter_Project_-_Code_Review_2_Changes | Changes to be made]]
 +
 
 +
=== Phase 12: Code Review 3 (DONE) ===
 +
* Sent code for code review 3
 +
* https://bitbucket.org/gbatumbya/postgresql_external/src/08cdedb9d071/
 +
 
 +
=== Phase 13: Code Review 3 - Apply Changes (DONE) ===
 +
* Upgrade to lastest 7.1 branch
 +
* Create Statement and PreparedStatementProxy
 +
* Create PostgreSQLPreparedStatementProxy:
 +
** implement set/getQueryTimeout
 +
** move custom timeout code into this proxy
 +
* Override prepareStatement in PostgreSQL to return PostgreSQLPreparedStatementProxy
 +
* Implement implicit save points for statements within a transaction block
 +
* Modify readSchema to use addColumn for reading columns from the database
 +
** Remove MSSQL and Oracle specific code from addColumn
 +
** Override addColumn in PostgreSQL for text, bytea and lo types
 +
 
 +
=== Phase 14: Integration Tests (DONE) ===
 +
* Run Integration tests against the Adapter
 +
 
 +
=== Phase 15: Code Review 4 (DONE)===
 +
* Code review with framework architect
 +
* https://bitbucket.org/gbatumbya/postgresql_external/src/6c9a7380c8fe
 +
 
 +
=== Phase 16: Code Review 4 - Apply Changes (DONE) ===
 +
* Estimated Duration: Sep 9 - Sep 12
 +
* [[PostgreSQL_Adapter_Project_-_Code_Review_4_Changes | Changes to be made]]
 +
 
 +
=== Phase 17: Code Review 5 (DONE) ===
 +
* Submitted code for review on Sep 20.
 +
* https://bitbucket.org/gbatumbya/postgresql_external/src/a0d10ef7cdbe/
  
−
===Phase 5: Test properties specific to PostgreSQL ===
+
=== Phase 18: Code Review 5 - Apply Changes (DONE) ===
  
−
* Add test cases that are specific to PostgreSQL database
+
=== Phase 19: Code Review 6 ===
 +
* Date: Oct 13
 +
* Submitted for code review
 +
* https://bitbucket.org/gbatumbya/postgresql_external/src/153aec847d54/
  
−
=== Phase 6: Optimization===
 
  
−
*After implementation is done, optimizing the modified files.
 
  
 
== Project Repository ==
 
== Project Repository ==
−
* URL for central repository of the project is: http://liberia.proximity.on.ca:81/
+
* URL for central repository of the project is: https://bitbucket.org/gbatumbya/nexjexpress-postgresqladapter
  
 
* Steps to work with the repository
 
* Steps to work with the repository
  
−
:1- Follow the instructions to create the NexJ Express workspace from the manual.
+
:1- Follow the [https://www.projects.openhealthtools.org/sf/docman/do/downloadDocument/projects.oht_aip/docman.root.nexj_studio_express_v7_1_113_0/doc1783/1 instructions to create the NexJ Express workspace ].
−
:2- After creating 'ws' directory, open Eclipse and click on File -> Import -> Mercurial -> Clone Existing Mercurial Repository -> Enter these information to clone from repository:
+
:2- After creating 'ws' directory,
−
:: '''URL''': ssh://liberia.proximity.on.ca/mercurial/postgreSQL/core
+
::open Eclipse and
−
:: '''Username''': developer
+
::click on '''File -> Import -> Mercurial -> Clone Existing Mercurial Repository'''
−
:: '''Clone directory name''': core
+
:: Enter this information:
 +
::: '''URL''': https://bitbucket.org/gbatumbya/nexjexpress-postgresqladapter
 +
<!--
 
:3- The central repository's structure is:
 
:3- The central repository's structure is:
 
:: Main branch called 'default'  
 
:: Main branch called 'default'  
−
:: New branch or branches with this naming convention: 'wsComitter' e.g. 'wsMinoo'
+
:: Branches for
 
:4- After cloning the project, follow these steps to add a new branch with your user name:
 
:4- After cloning the project, follow these steps to add a new branch with your user name:
 
:: First make sure the active branch is 'default'. Notice the top of the Package Explorer e.g. ''core[5:b8b2f102343@'''default'''(tip)]''
 
:: First make sure the active branch is 'default'. Notice the top of the Package Explorer e.g. ''core[5:b8b2f102343@'''default'''(tip)]''
Line 93: Line 166:
 
* '''NOTE!''' To avoid any conflict, do the 'Pull' every day and before any push.
 
* '''NOTE!''' To avoid any conflict, do the 'Pull' every day and before any push.
 
* '''NOTE!''' First just 'Commit' changesets and do not 'Push' them until the end of the day or the time you are confident by latest changes to the code, then 'Push' them all at once and 'Merge' them with the 'default' branch in central repository.
 
* '''NOTE!''' First just 'Commit' changesets and do not 'Push' them until the end of the day or the time you are confident by latest changes to the code, then 'Push' them all at once and 'Merge' them with the 'default' branch in central repository.
 +
-->
  
 
== Resources ==
 
== Resources ==
 +
* Downloads
 +
Linux binaries http://www.openscg.org/se/postgresql/packages.jsp
 +
* Debugging
 +
:[[Run_Junit_Tests_For_Non_Default_SQL_Adapter | Unit Testing for non Default SQL Adapter]]
 +
:
 
* Intro
 
* Intro
 
:Concept of Adapter [http://www.vogella.de/articles/DesignPatternAdapter/article.html]
 
:Concept of Adapter [http://www.vogella.de/articles/DesignPatternAdapter/article.html]
Line 104: Line 183:
 
* [[PostgreSQL_Adapter-nexj/Resources#MySQL_Specifications | MySQL Specifications]]
 
* [[PostgreSQL_Adapter-nexj/Resources#MySQL_Specifications | MySQL Specifications]]
 
* [[PostgreSQL_Adapter-nexj/Resources#PostgreSQL_-_MySQL_Compare | Postgre - MySQL Compare]]
 
* [[PostgreSQL_Adapter-nexj/Resources#PostgreSQL_-_MySQL_Compare | Postgre - MySQL Compare]]
 +
 +
 +
== Summary of Applied Research ==
 +
* [[Research Findings - PostgreSQLAdapter]]
 +
* [[Research Notes - PostgreSQLAdapter]]

Latest revision as of 20:31, 26 January 2014

Important.png
This page may be obsolete.
It contains historical information.

PostgreSQL Adapter for NexJ


Project Goal

Develop an adapter to enable NexJ Express model to interact with PostgreSQL database.

Contributors


Supported PostgreSQL Versions

  • 8.4+


Current Status


Project Phases

Phase 1: Investigation (DONE)

  • Get requirements from NexJ (Meeting on Friday Nov 5th)
  • Walk-through the code
  • Familiarization with PostgreSQL

Phase 2: Connect to PostgreSQL server (DONE)

Phase 3: PostgreSQLSchemaManager (DONE)

Phase 4: PostgreSQLAdapter (DONE)

Phase 5: PostgreSQL UnitTests and Optimization (DONE)

  • Estimated Duration: 2 weeks (Feb 28 - Mar 11, 2016)
  • Add database specific tests fostr PostgreSQL
    test for required contrib scripts
    test for custom blob read & write functions
  • Add PostgreSQL specific optimization

Phase 6: Megre Code with Latest Revision (DONE)

Phase 7: Test with NexJ Express Studio (DONE)

  • Estimated duration: Mar 7- Apr 14, 2011
  • Run model in Express studio using the postgresql adapter
  • create scripts for database initialization, creation and dumping
  • create scripts for JBoss
  • Deploy to JBoss

Phase 8: Code Review 1 - Meeting (DONE)

  • Date: Apr 20,2011
  • Meet with NexJ Developer to review code

Phase 9: Code Review 1 - Apply Changes (DONE)

Phase 10: Code Review 2 (DONE)

  • Send code for review

Phase 11: Code Review 2 - Apply Changes (DONE)

Phase 12: Code Review 3 (DONE)

Phase 13: Code Review 3 - Apply Changes (DONE)

  • Upgrade to lastest 7.1 branch
  • Create Statement and PreparedStatementProxy
  • Create PostgreSQLPreparedStatementProxy:
    • implement set/getQueryTimeout
    • move custom timeout code into this proxy
  • Override prepareStatement in PostgreSQL to return PostgreSQLPreparedStatementProxy
  • Implement implicit save points for statements within a transaction block
  • Modify readSchema to use addColumn for reading columns from the database
    • Remove MSSQL and Oracle specific code from addColumn
    • Override addColumn in PostgreSQL for text, bytea and lo types

Phase 14: Integration Tests (DONE)

  • Run Integration tests against the Adapter

Phase 15: Code Review 4 (DONE)

Phase 16: Code Review 4 - Apply Changes (DONE)

Phase 17: Code Review 5 (DONE)

Phase 18: Code Review 5 - Apply Changes (DONE)

Phase 19: Code Review 6


Project Repository

  • Steps to work with the repository
1- Follow the instructions to create the NexJ Express workspace .
2- After creating 'ws' directory,
open Eclipse and
click on File -> Import -> Mercurial -> Clone Existing Mercurial Repository
Enter this information:
URL: https://bitbucket.org/gbatumbya/nexjexpress-postgresqladapter

Resources

  • Downloads

Linux binaries http://www.openscg.org/se/postgresql/packages.jsp

  • Debugging
Unit Testing for non Default SQL Adapter
  • Intro
Concept of Adapter [1]
FOSSLC PostgreSQL


Summary of Applied Research

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