Was trying to Parametrize persistence.xml in src/main/resources/META-INF . Came accross concept of Resource Filtering by maven Resources plugin.
1. Replace values with variables in whichever file you want.
<property name=”hibernate.connection.driver_class” value=”${my.driverClassName}” />
<property name=”hibernate.connection.url” value=”${my.url}” />
<property name=”hibernate.connection.username” value=”${my.user}” />
<property name=”hibernate.connection.password” value=”${my.password}” />
<property name=”hibernate.dialect” value=”${my.dialect}”/>
2. Create profile in pom xml
<profiles>
<profile>
<id>myprofile</id>
<properties>
<my.driverClassName>oracle.jdbc.driver.OracleDriver</my.driverClassName>
<my.url>jdbc:oracle:thin:@localhost:1521:orcl</my.url>
<my.user>myuser</my.user>
<my.password>mypass</my.password>
<my.dialect>org.hibernate.dialect.Oracle9iDialect</my.dialect>
</properties>
</profile>
</profiles>
3. Activate resource filtering
<build>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
You need to do this, by default filtering is disabled. Even if your files are within subfolders of src/main/resources it will filter them. For example in this case persistence.xml is in src/main/resources/META-INF and it works ok.
4. Run maven like this:-
mvn clean install -Pmyprofile
http://www.sonatype.com/books/mvnref-book/reference/resource-filtering-sect-description.html
http://maven.apache.org/plugins/maven-resources-plugin/examples/filter.html
