Hi Guice Gurus,
I am just playing with Guice 2.x and I am stuck with an issue that I
can not resolve. Any help would be appreciated.
I have a service class that takes DAO class as a constructor argument
that connects to the data base. The dao class accepts a data source as
a constructor argument. I have created two modules : the first one
injects a JNDI based data source, the other DriverManager based data
source. I would like
public class MyService {
private final MyDao myDao;
public MyService(MyDao myDao) {
this.myDao = myDao;
}
....
}
public class MyDao {
private final DataSource dataSource;
@Inject
public MyDao(DataSource dataSource) {
this.dataSource = dataSource;
}
....
}
My modules:
public class JndiDataSourceModule extends AbstractModule {
public void configure() {
bind(DataSource.class).toProvider(JndiIntegration.fromJndi
(DataSource.class, "myDatasource"));
}
}
public class DriverManagerDataSourceModule extends AbstractModule {
@Provides
DataSource getDataSource() {
return DriverManagerDataSource(driverClass, url, username,
password);
}
....
}
I can not figure out how to inject DriverManager based DataSource for
unit tests and JNDI based datasource in my application. I was thinking
of passing modules in the constructor of my service class but I don't
think I would be able to mock my MyDao for exceptional conditions.
Any help would be appreciated.
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