>
> On Sun, May 16, 2010 at 4:39 AM, Anton Podviaznikov
> <[email protected]> wrote:
>
> > I'm stack with Neo4j support now. I know that there is extension (I guess
> > this?
> http://dscm.ops4j.org/git/gitweb.cgi?p=qi4j-extensions.git;a=tree;f=entitystore-neo4j;hb=396075ff031b263fa81d7fb870919a21d741c4be
> ?)
> > but it uses outdated version of Neo4j.
>
> I will leave the Neo4j specific questions to someone from Neo
> Technology who would know more about it.
>
> > Does somebody has few more samples of using this db?
>
> In principle, once the assembly is done, there is no 'leakage' of Neo
> into the Qi4j world and there are no "Neo4j specific" samples to make.
>
>
> Cheers
> --
> Niclas Hedhman, Software Developer
> http://www.qi4j.org - New Energy for Java
Niclas, thanks for your answer.
I have few more question about the Qi4j. If you know some sample that I
missed - just tell me:)
1. I created sample application. We have company domain model. I want to add
company and view the list of companies.
I have following code:
public void addCompany(String name)
{
final UnitOfWork uow = unitOfWorkFactory.newUnitOfWork();
try
{
final EntityBuilder<Company> builder =
uow.newEntityBuilder(Company.class);
final Company prototype = builder.instance();
prototype.name().set(name);
final Company company = builder.instance();
System.out.println(company.name());
}
finally
{
try
{
if(uow!=null)uow.complete();
}
catch (UnitOfWorkCompletionException e)
{
debug.debug(Debug.HIGH, "Exception during UOW complete.
See: " + e.getMessage());
}
}
}
Is it enough to store entity or I missed something?
Because I have next method:
public Query<Company> findAll()
{
final UnitOfWork uow = unitOfWorkFactory.newUnitOfWork();
try
{
return qbf.newQueryBuilder(Company.class).newQuery(uow);
}
finally
{
try
{
if(uow!=null)uow.complete();
}
catch (UnitOfWorkCompletionException e)
{
debug.debug(Debug.HIGH, "Exception during UOW complete.
See: " + e.getMessage());
}
}
}
and it retus empty list.
2. Another question regarding UnitOfWork. DO I use tham correctly? What is
the pattern, when I should create new or use current?
Thanks for your help.
Best regards,
Anton Podviaznikov
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