Hello everyone,
I was looking at the OJB tutorial and realized that two mapping files are
provided for the same Table-Class.
- Situation 1
. in the package org.apache.ojb there is the usual OJB.properties, and
this file sets the also usual repository.xml as the mapping file.
. the repository.xml includes several other xml mappings, among them the
repositor_jdo.xml.
. the repository_jdo.xml contains a mapping for the Product (Table and
class)
- Situation 2
. a file called Product.jdo can be found in the package
org.ojb.apache.tutorial5, and this file has a commented section related to
database mapping, in some points equivalent to those provided by
OJB.properties
<!--extension vendor-name="ojb" key="dbplatform" value="hsqldb"/>
<extension vendor-name="ojb" key="dbjdbc-level" value="2.0"/>
<extension vendor-name="ojb" key="dbdriver" value="org.hsqldb.jdbcDriver"/>
<extension vendor-name="ojb" key="dbprotocol" value="jdbc"/>
<extension vendor-name="ojb" key="dbsubprotocol" value="hsqldb"/>
<extension vendor-name="ojb" key="dbalias" value="../OJB"/>
<extension vendor-name="ojb" key="dbusername" value="sa"/>
<extension vendor-name="ojb" key="dbpassword" value=""/-->
My questions:
1 - Do I really need to maintain both mappings?? (repository.xml and *.jdo
files??)
2 - In case I can use a mapping similar to the one in Product;jdo file
(check above), do I need to provide it in every *.jdo file (package or class
related) or is there a place where I can put these mappings that will fit to
the JDO RI as a whole?
Thanks in advance,
Daniel
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