I mean that the way to get single result from query is via DataObjectUtils.
objectForQuery(...)
2009/4/6 John Armstrong <siberia..mail.com>
> Andrey, you left me in suspense :)
>
> > BTW right here's a method which returns one object of query result
>
> Are you saying use ObjectIdQuery to get one result or is there another
> normal query that will do it?
>
> John-
>
> 2009/4/6 Andrey Razumovsky <razumovsky.andre..mail.com>:
> > The correct way to get fresh object is similiar to the method in
> > DataObjectUtils:
> >
> > public static Object freshObjectForPK(ObjectContext context, ObjectId id)
> {
> > return DataObjectUtils.objectForQuery(context, new ObjectIdQuery(
> > id,
> > false,
> > ObjectIdQuery.REFRESH));
> > }
> >
> > BTW right here's a method which returns one object of query result
> >
> > 2009/4/6 Borut Bolina <borut.bolcin..mail.com>
> >
> >> Hi,
> >>
> >> would it be possible to add one method in DataObjectUtils,
> >>
> >> DataObjectA dataObjectA = DataObjectUtils.objectForPK(dataContext,
> >> DataObjectA.class, 1, QueryCacheStrategy.NO_CACHE);
> >>
> >> which would always return a fresh object.
> >>
> >>
> >> By the way, is this the correct way of fetching an object directly
> >> from database?
> >>
> >> Expression e = ExpressionFactory.matchExp(DataObjectA.ID_PK_COLUMN,
> "1");
> >> SelectQuery query = new SelectQuery(DataObjectA.class, e);
> >> query.setCacheStrategy(QueryCacheStrategy.NO_CACHE);
> >> List list = dataContext.performQuery(query);
> >>
> >> DataObjectA objectA= null;
> >> if (list.size() > 0) {
> >> objectA= (DataObjectA) list.get(0);
> >> }
> >>
> >> The above code would still use object cache, right, so I will not be
> >> getting the object with values as set in database (maybe changed by
> >> 3rd party process). How to overcome this in the above code?
> >>
> >> Also, wouldn't it be convenient if performQuery could return just one
> >> object so we do not have to always type the boilerplate
> >> if(list.size>0) ?
> >>
> >> Regards,
> >> Borut
> >>
> >
>
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