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From jdo-comm...@db.apache.org
Subject [Apache JDO Wiki] New: J2SESupport
Date Thu, 10 Feb 2005 15:41:09 GMT
   Date: 2005-02-10T07:41:09
   Editor: MichaelBouschen
   Wiki: Apache JDO Wiki
   Page: J2SESupport
   URL: http://wiki.apache.org/jdo/J2SESupport

   Description of J2SE 1.3 support

New Page:

'''J2SE 1.3 support'''

The objective of JDO is to support J2SE 1.3 (and higher) for runtime.

You need J2SE 1.4 to compile the sub-projects ri11 and tck11:
 *Both ri11 and tck11 provide a helper class to configure standard J2SE 1.4 logging. This
class does not compile with J2SE 1.3.
 *The JDO specification calls for use of javax.transaction.Transaction. Both ri11 and tck11
need the JTA interfaces for compilation. In order to use the automatic dependency management
as provided by maven we use the JTA interfaces as provided by geronimo (geronimo-spec:geronimo-spec-jta).
The class files in this jar are compiled -target 1.4, so they cannot be used with a J2SE 1.3

However, you can run the jars as created by the sub-projects api11, btree, ri11 and tck11
with a J2SE 1.3 runtime. For the btree sub-project we cannot use the latest version of the
netbeans btree sources, because they make use of assert statements. This means you need to
compile them with option -source 1.4 which implies -target 1.4 such that the generated code
does not run with J2SE 1.3. We switched to btree sources from mid of September 2004 that do
not use assert statements. The resulting btree jar runs with J2SE 1.3.

In order to run ri11 and tck11 with J2SE 1.3 you need to switch the JTA distribution and add
a XML parser implementation:
 *You can download the JTA distribution version 1.0.1B from http://java.sun.com/products/jta.
Then change the value of property jta.jarfile in project.properties of ri11 and tck11 to refer
to the downloaded jar:
  jta.jarfile = ${basedir}/../lib/jta-1_0_1B-classes.zip
 *The JDO model needs an XML parser to read the JDO metadata files. J2SE 1.4 includes an XML
parser implementation, but J2SE 1.3 does not. You can download the Xerces-J release 1.4.4
from http://xml.apache.org/xerces-j. Then change the value of property xmlparser in project.properties
of ri11 and tck11 to refer to the jar xerces.jar included the downloaded distribution:
  xmlparser = ${basedir}/../lib/xerces.jar

The above property setting assume you placed the downloaded jars into a new directory called
lib located parallel to ri11 and tck11.

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