Selon [EMAIL PROTECTED]:
> Hi,
> I'm using a dao pattern, the call
>
> QueryManager.getInstance().getQueryRunner().query(...);
>
> is executed in my dao object.
>
> Servlet calls dao method.
>
ok.
> What do you mean with it depends of your project size?
Hi,
If you have a small project it is not mandatory to spend a lot of time in the
abstraction layers, but this is advised. If you implement this approach, life is
wonderful. :)
Jérome.
>
> Thanks a lot
>
> Diego
>
>
> > Hi,
> > It seems correct, why not, QueryRunner object is thread safe.
> > Web layer which calls integration layer directly, it's a bad design but
> > this
> > depends of your project size.
> >
> > Jérome.
> >
> >
> >
> > Selon [EMAIL PROTECTED]:
> >
> >> Hi, I'm developing a web application using DbUtils classes to execute
> >> queries and so on.
> >>
> >> I user QueryRunner class with a DataSource.
> >>
> >> I red this class is thread safe, so I implemented a Singleton to
> >> instance
> >> QueryRunner only once.
> >>
> >> This is my code:
> >>
> >> public class QueryManager {
> >>
> >> private static QueryManager queryManager = null;
> >>
> >> private static QueryRunner queryRunner = null;
> >>
> >> static {
> >> try {
> >> queryRunner = new QueryRunner(DataSourceSingleton.getInstance()
> >> .getDataSource());
> >> } catch (Exception e) {
> >> }
> >> }
> >>
> >> public static QueryManager getInstance() {
> >> if (queryManager == null) {
> >> queryManager = new QueryManager();
> >> }
> >> return queryManager;
> >> }
> >>
> >> public QueryRunner getQueryRunner() {
> >> return queryRunner;
> >> }
> >>
> >> In my servlets I use:
> >>
> >> QueryManager.getInstance().getQueryRunner().query(...);
> >>
> >> Is this correct?
> >>
> >> Which is the best practice to use QueryRunner in a web context?
> >>
> >> Thanks a lot in advance
> >>
> >>
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> >>
> >>
> >
> >
> >
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> >
>
>
>
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