persistence.xml looks like this:
<persistence-unit name="testPU" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<non-jta-data-source>jdbc/test</non-jta-data-source>
<jar-file>../../lib/app-services-1.0.jar</jar-file>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
</persistence-unit>
It is a web project, so the deployment unit is a war file. The jar file I tried to refer is in WEB-INF/lib/ folder , persistence.xml is in WEB-INF/classes/META-INF folder. When being deployed, it simply tells me
"WARNING: Unable to find file (ignored): file:.../../lib/app-services-1.0.jar".
I also tried every possible path I could think of, i.e. ../lib/app-services-1.0.jar, lib/app-services-1.0.jar.
What is the right path to do this?
Taking a look at jsr always works!
8.2.1.6.3 Jar Files
One or more JAR files may be specified using the
jar-file
elements instead of, or in addition to the mapping files specified in themapping-file
elements. If specified, these JAR files will >be searched for managed persistence classes, and any mapping metadata annotations found on them will be pro-cessed, or they will be mapped using the mapping annotation defaults defined by this specification. Such JAR files are specified relative to the directory or jar file that contains the root of the persis-tence unit.The following examples illustrate the use of the
jar-file
element to reference additional persistence classes. These examples use the convention that a jar file with a name terminating in “PUnit” contains thepersistence.xml
file and that a jar file with a name terminating in “Entities” contains additional persistence classes.
Example 1:
app.ear
lib/earEntities.jar
earRootPUnit.jar (with META-INF/persistence.xml )
persistence.xml contains:
<jar-file>lib/earEntities.jar</jar-file>
Example 2:
app.ear
lib/earEntities.jar
lib/earLibPUnit.jar (with META-INF/persistence.xml )
persistence.xml contains:
<jar-file>earEntities.jar</jar-file>
Example 3:
app.ear
lib/earEntities.jar
ejbjar.jar (with META-INF/persistence.xml )
persistence.xml contains:
<jar-file>lib/earEntities.jar</jar-file>
Example 4:
app.ear
war1.war
WEB-INF/lib/warEntities.jar
WEB-INF/lib/warPUnit.jar (with META-INF/persistence.xml )
persistence.xml contains:
<jar-file>warEntities.jar</jar-file>
Example 5:
app.ear
war2.war
WEB-INF/lib/warEntities.jar
WEB-INF/classes/META-INF/persistence.xml
persistence.xml contains:
<jar-file>lib/warEntities.jar</jar-file>
Example 6:
app.ear
lib/earEntities.jar
war2.war
WEB-INF/classes/META-INF/persistence.xml
persistence.xml contains:
<jar-file>../../lib/earEntities.jar</jar-file>
Example 7:
app.ear
lib/earEntities.jar
war1.war
WEB-INF/lib/warPUnit.jar (with META-INF/persistence.xml )
persistence.xml contains:
<jar-file>../../../lib/earEntities.jar</jar-file>
As you see there is no example for war files, all war files in the examples above are inside ear files!
But I tested in war files and it works just when I specify the absolute path of jar files and it is not a good approach for production environment!