Define DAO-Implementation with Maven-Profile

[ahoehma]

Hello folks,

i have a strange idea ...
i would like define the used dao-implementation in a maven-profile ...
a example:

spring-dao.xml:

  <bean id="remoteDao" class="de.ahoehma.dao.Remote" scope="session">
    <aop:scoped-proxy />
    <property name="profile"value="${dao_profile}" />
  </bean>
  
  <bean id="localDao" class="de.ahoehma.dao.Local" scope="session">
    <aop:scoped-proxy />
    <property name="profile" value="${dao_profile}"/>
    <property name="license" value="/db/123456.TXT"/>
  </bean>

spring-services.xml:

  <bean id="FoobarService" class="de.ahoehma.service.FoobarService">
    <property name="dao" ref="${daoImpl}"/>
  </bean>

imagine there are more dao-implementations possible ... so i would *not* include every possible dao-impl into my dao.xml.
so how can i define "dynamic" the real bean for "${daoImpl}"?

I want create the war-file (i have a j2ee app) with a simple maven-call:

mvn package -Pdao-local
or
mvn package -Pdao-remote
or
mvn package -Pdao-whatever

in the maven-profiles i would define the dao which should be used:

<profile>
  <id>dao-local</id>
  <properties>
     <dao-impl>localDao</dao-impl>
  </properties>
</profile>
<profile>
  <id>dao-remote</id>
  <properties>
     <dao-impl>remoteDao</dao-impl>
  </properties>
</profile>

then maven can filter my propertie-files, e.g. a dao.properties:

daoImpl=${dao-impl}

so a spring PropertyPlaceholderConfigurer can read the property "daoImpl".
but here is the problem "i can use a placeholder for a bean-ref" :-(

ref="${daoImpl}" is not possible

any ideas?
regards
andreas

[ahoehma]

a dynamic import will not work:

spring-dao-remote.xml

  <bean id="Dao" class="de.ahoehma.dao.Remote" scope="session">
    <aop:scoped-proxy />
    <property name="profile"value="${dao_profile}" />
  </bean>

spring-dao-local.xml

  
  <bean id="Dao" class="de.ahoehma.dao.Local" scope="session">
    <aop:scoped-proxy />
    <property name="profile" value="${dao_profile}"/>
    <property name="license" value="/db/123456.TXT"/>
  </bean>

spring-services.xml

  <import resource="classpath:${dao-config}"/>

  <bean id="FoobarService" class="de.ahoehma.service.FoobarService">
    <property name="dao" ref="Dao"/>
  </bean>

with dao.properties

dao-config=spring-dao-remote.xml

or

dao-config=spring-dao-local.xml

[ahoehma]

i found a way ... but not the best solution ...

spring-dao-remote.xml

  <bean id="DaoRemote" class="de.ahoehma.dao.Remote" scope="session">
    <aop:scoped-proxy />
    <property name="profile"value="${dao_profile}" />
  </bean>

spring-dao-local.xml

  
  <bean id="DaoLocal" class="de.ahoehma.dao.Local" scope="session">
    <aop:scoped-proxy />
    <property name="profile" value="${dao_profile}"/>
    <property name="license" value="/db/123456.TXT"/>
  </bean>

spring-services.xml

  <import resource="spring-dao-local.xml"/>
  <import resource="spring-dao-remote.xml"/>

  <bean id="FoobarService" class="de.ahoehma.service.FoobarService">
    <property name="dao">
      <ref bean="${daoImpl}"/>
    </property>
  </bean>

with

daoImpl=DaoLocal

or

daoImpl=DaoRemote

It works but i have to include all possible spring-dao-XXX.xml :-(

[Marten Deinum]

We have a project called JavaConfig which might be what you want to use. Joris and Alef gave a presentation about this on how to switch between environments.

[ahoehma]

http://blog.arendsen.net/index.php/2...t-with-spring/

Works for me ... but with the lack of importing all known dao-configurations,
a dynamic import would be nice

[ahoehma]

We have a project called JavaConfig which might be what you want to use. Joris and Alef gave a presentation about this on how to switch between environments.

Hi Marten, please post a URL. thxs