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AppFuseOnDB2


Difference between version 9 and version 8:

At line 3 changed 1 line.
;:''This howto assumed you've already installed DB2 and your DBA username/password combination is admin/admin.''
;:''This howto assumed you've already installed DB2 and your DBA username/password combination is db2admin/db2admin.''
At line 5 added 2 lines.
__January 16, 2004 UPDATE:__ I greatly simplified this process in AppFuse and altered this HowTo accordingly. This reflects the latest code in CVS and updates that will be in 1.3.
At line 27 changed 4 lines.
Edit properties.xml and change the database.jar to be db2.jar:
{{{
<property name="database.jar" location="${db2.jar}"/>
}}}
Edit your build.properties file to reflect your new database of choice. MySQL settings are the defaults specified in properties.xml. Here is a sample for DB2, followed by one for PostgreSQL:
At line 32 removed 1 line.
Edit database.properties, where you'll change a number of settings:
At line 32 added 1 line.
database.jar=${db2.jar}
At line 35 changed 1 line.
database.name=jdbc:db2:appfuse
#database.name=appfuse
database.host=localhost
#database URL for creating other databases (not used with db2)
database.admin.url=jdbc:${database.type}://${database.host}/db2
database.admin.username=db2admin
database.admin.password=db2admin
hibernate.dialect=net.sf.hibernate.dialect.DB2Dialect
database.driver_class=COM.ibm.db2.jdbc.net.DB2Driver
database.url=jdbc:${database.type}://${database.host}/${database.name}
database.username=db2admin
database.password=db2admin
At line 37 changed 1 line.
;:''Uncomment the db2 settings and comment out the mysql settings''
__PostgreSQL:___
At line 39 changed 9 lines.
## DB2
hibernate.dialect net.sf.hibernate.dialect.DB2Dialect
hibernate.connection.driver_class = COM.ibm.db2.jdbc.app.DB2Driver
hibernate.connection.url = jdbc:db2:apptrack
hibernate.connection.username = admin
hibernate.connection.password = admin
hibernate.connection.pool_size = 20
hibernate.statement_cache.size = 6
hibernate.show_sql = false
database.jar=${postgresql.jar}
database.type=postgresql
database.name=appfuse
database.host=localhost
#database URL for creating other databases
database.admin.url=jdbc:${database.type}://${database.host}/template1
database.admin.username=postgres
database.admin.password=postgres
hibernate.dialect=net.sf.hibernate.dialect.PostgreSQLDialect
database.driver_class=org.postgresql.Driver
database.url=jdbc:${database.type}://${database.host}/${database.name}
database.username=postgres
database.password=postgres
At line 50 changed 1 line.
I haven't yet figured out how to create the ''appfuse'' database using straight SQL, but I did find it to be fairly easy using DB2's "Command Line Processor". Just open the application and type "create db appfuse" - and wait for about 2 minutes.
You can use the database.properties.reference file for other database's settings.
At line 52 changed 1 line.
At this point, running "ant setup-db" will fail because we have no db2-create.sql in metadata/sql. Since the database is already created, I just used "ant db-init". Now onto the errors and ways I fixed them.
I was unable to create databases ''on-the-fly'' (using JDBC) on PostgresSQL (transaction error) or on DB2. Therefore, I changed the "db-create" target to only attempt to do this for MySQL. If you're not using MySQL, you don't need to specify the database.admin.* properties since they won't be used. See the DB2 Sample Script[#6] for creating a new database in the ''Command Line Processor''.
At line 70 added 2 lines.
Now let's looks at tweaks I had to make to AppFuse to make ''easy database switching'' a reality.
At line 72 changed 2 lines.
* @hibernate.property
* column="email" not-null="false"
* @hibernate.property column="email" not-null="false"
At line 137 added 3 lines.
__Below is the old way to do it. In 1.3, I modified the ''tomcat-context.xml'' and ''hibernate.cfg.xml'' to get the database-specific attributes replaced at build-time. This eliminates the process below. I'll leave it in here in case you're on an older version of AppFuse.__

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